Magic Leap Patent | Augmented Reality Display System For Evaluation And Modification Of Neurological Conditions, Including Visual Processing And Perception Conditions

Patent: Augmented Reality Display System For Evaluation And Modification Of Neurological Conditions, Including Visual Processing And Perception Conditions

Publication Number: 20200312038

Publication Date: 20201001

Applicants: Magic Leap

Abstract

In some embodiments, a display system comprising a head-mountable, augmented reality display is configured to perform a neurological analysis and to provide a perception aid based on an environmental trigger associated with the neurological condition. Performing the neurological analysis may include determining a reaction to a stimulus by receiving data from the one or more inwardly-directed sensors; and identifying a neurological condition associated with the reaction. In some embodiments, the perception aid may include a reminder, an alert, or virtual content that changes a property, e.g. a color, of a real object. The augmented reality display may be configured to display virtual content by outputting light with variable wavefront divergence, and to provide an accommodation-vergence mismatch of less than 0.5 diopters, including less than 0.25 diopters.

PRIORITY CLAIM

[0001] This application is a continuation of U.S. application Ser. No. 16/428,275 filed on May 31, 2019; which is a continuation of U.S. application Ser. No. 15/627,208 filed on Jun. 19, 2017, which claims the benefit of priority under 35 U.S.C. 119(e) of U.S. Provisional Application No. 62/352,539 filed on Jun. 20, 2016; U.S. Provisional Application No. 62/366,555 filed on Jul. 25, 2016; and U.S. Provisional Application No. 62/440,291 filed on Dec. 29, 2016. The entire disclosure of each of these priority documents is incorporated herein by reference.

INCORPORATION BY REFERENCE

[0002] This application incorporates by reference the entirety of each of the following patent applications: U.S. application Ser. No. 14/555,585 filed on Nov. 27, 2014, published on Jul. 23, 2015 as U.S. Publication No. 2015/0205126; U.S. application Ser. No. 14/690,401 filed on Apr. 18, 2015, published on Oct. 22, 2015 as U.S. Publication No. 2015/0302652; U.S. application Ser. No. 14/212,961 filed on Mar. 14, 2014, now U.S. Pat. No. 9,417,452 issued on Aug. 16, 2016; U.S. application Ser. No. 14/331,218 filed on Jul. 14, 2014, published on Oct. 29, 2015 as U.S. Publication No. 2015/0309263; and U.S. application Ser. No. 15/072,290 filed on Mar. 16, 2016, published on Sep. 22, 2016 as U.S. Publication No. 2016/0270656.

BACKGROUND

Field

[0003] The present disclosure relates to display systems and, more particularly, to augmented reality display systems.

Description of the Related Art

[0004] Modern computing and display technologies have facilitated the development of systems for so called “virtual reality” or “augmented reality” experiences, wherein digitally reproduced images or portions thereof are presented to a user in a manner wherein they seem to be, or may be perceived as, real. A virtual reality, or “VR”, scenario typically involves presentation of digital or virtual image information without transparency to other actual real-world visual input; an augmented reality, or “AR”, scenario typically involves presentation of digital or virtual image information as an augmentation to visualization of the actual world around the user. A mixed reality, or “MR”, scenario is a type of AR scenario and typically involves virtual objects that are integrated into, and responsive to, the natural world. For example, in an MR scenario, AR image content may be blocked by or otherwise be perceived as interacting with objects in the real world.

[0005] Referring to FIG. 1, an augmented reality scene 1 is depicted wherein a user of an AR technology sees a real-world park-like setting 1100 featuring people, trees, buildings in the background, and a concrete platform 1120. In addition to these items, the user of the AR technology also perceives that he “sees” “virtual content” such as a robot statue 1110 standing upon the real-world platform 1120, and a cartoon-like avatar character 1130 flying by which seems to be a personification of a bumble bee, even though these elements 1130, 1110 do not exist in the real world. Because the human visual perception system is complex, it is challenging to produce an AR technology that facilitates a comfortable, natural-feeling, rich presentation of virtual image elements amongst other virtual or real-world imagery elements.

[0006] Systems and methods disclosed herein address various challenges related to AR and VR technology.

SUMMARY

[0007] In some embodiments, a display system comprises a head-mountable, augmented reality display configured to output light with variable wavefront divergence to display virtual content. The display system also comprises one or more inwardly-directed sensors; one or more outwardly-directed sensors; one or more processors; and one or more computer storage media storing instructions that, when executed by the one or more processors, cause the one or more processors to perform various operations. The operations comprise performing a neurological analysis; determining environmental triggers associated with the neurological condition; monitoring an ambient environment with the one or more outwardly-directed sensors; detecting a presence of an environmental trigger in the ambient environment; and providing a perception aid based on the detected presence of the triggering variable. Performing the neurological analysis comprises determining a reaction to a stimulus by receiving data from the one or more inwardly-directed sensors, and identifying a neurological condition associated with the reaction.

[0008] In some other embodiments, the display system comprises a head-mountable, augmented reality display configured to output light with variable wavefront divergence to display virtual content. The display system also comprises one or more inwardly-directed sensors; one or more processors; and one or more computer storage media storing instructions that, when executed by the one or more processors, cause the one or more processors to perform various operations. The operations comprise performing a neurological analysis by determining a reaction to a stimulus by receiving data from the one or more inwardly-directed sensors; and identifying a neurological condition associated with the reaction.

[0009] In yet other embodiments, a method is performed by a display system comprising one or more processors, one or more inwardly-directed sensors, and a head-mounted display. The method comprises performing a neurological analysis by determining a user reaction to a stimulus by collecting data from the one or more inwardly-directed sensors; and identifying a neurological condition associated with the reaction.

[0010] In addition, various innovative aspects of the subject matter described in this disclosure can be implemented in the following embodiments:

Embodiment 1

[0011] A display system comprising:

[0012] a head-mounted display configured to project light to a user to display augmented reality image content on a plurality of depth planes, the display comprising: [0013] one or more waveguides configured to project the light to the user, wherein the one or more waveguides are further configured to transmit light from a surrounding environment to the user, wherein the display system is configured to: [0014] provide a stimulus to the user; [0015] determine a reaction of the user to the stimulus; and [0016] determine in the user a presence of a neurological condition or neurological state associated with the reaction.

Embodiment 2

[0017] The display system of Embodiment 1, wherein the stimulus comprises the augmented reality image content.

Embodiment 3

[0018] The display system of any of the Embodiments 1-2, wherein the display system is configured to display to the user a list of neurological conditions corresponding to the reaction.

Embodiment 4

[0019] The display system of any of the Embodiments 1-3, wherein the neurological conditions are neurological abnormalities.

Embodiment 5

[0020] The display system of any of the Embodiments 1-4, wherein the display system is configured to communicate the list of neurological conditions to a clinician.

Embodiment 6

[0021] The display system of any of the Embodiments 1-5, wherein the display system is configured to communicate the list of neurological conditions to one or more other users.

Embodiment 7

[0022] The display system of any of the Embodiments 1-6, wherein the display system is configured to:

[0023] provide the stimulus by displaying a plurality of images to the user, wherein one of the images is on a different depth plane than another of the images;* and*

[0024] determine the reaction by: [0025] measuring an accommodation, vergence state and/or other efferent system responses of the user’s eyes; and [0026] determining the image perceived by the user by matching the measured accommodation, vergence state and/or other efferent system responses with an expected accommodation and/or vergence state for the one of the images or the other of the images.

Embodiment 8

[0027] The display system of any of the Embodiments 1-7, wherein the display is configured to display augmented reality image content continuously to the user for 3 or more hours while the user wears the display.

Embodiment 9

[0028] The display system of any of the Embodiments 1-8, wherein the display is configured to display the augmented reality image content for 5 or more hours.

Embodiment 10

[0029] The display system of any of the Embodiments 1-9, wherein the display system is configured to automatically perform the following sequence a plurality of times over a plurality of months:

[0030] provide a stimulus to the user;

[0031] determine a reaction of the user to the stimulus;* and*

[0032] determine in the user a presence of a neurological condition associated with the reaction.

Embodiment 11

[0033] A display system comprising:

[0034] a head-mounted display configured to project light to a user to display augmented reality image content on a plurality of depth planes, the display comprising: [0035] one or more waveguides configured to project the light to the user, wherein the one or more waveguides are further configured to transmit light from a surrounding environment to the user, [0036] wherein the display system is configured to: [0037] determine a reaction of the user to a stimulus; and [0038] determine in the user a presence of a neurological condition associated with the reaction.

Embodiment 12

[0039] The display system of any of Embodiments 1-11, wherein the display system is configured to provide information associated with the neurological condition to a population of other users.

Embodiment 13

[0040] The display system of Embodiment 12, wherein the display system is configured to determine the neurological condition based upon a norm determined from the population of other users.

Embodiment 14

[0041] The display system of any of Embodiments 12-13, wherein the display system is configured to retrieve a norm for a subset of the population based upon criteria corresponding to the user.

Embodiment 15

[0042] The display system of any of Embodiments 12-14, wherein the display system is configured to dynamically alter a norm by providing information associated with the neurological condition to the population of other users.

Embodiment 16

[0043] A display system comprising:

[0044] a head-mounted display configured to project light to a user to display augmented reality image content on a plurality of depth planes, the display comprising: [0045] one or more waveguides configured to project the light to the user, wherein the one or more waveguides are further configured to transmit light from a surrounding environment to the user, [0046] wherein the display system is configured to: [0047] determine whether a stimulus is associated with a neurological condition; and [0048] display a perception aid for the neurological condition.

Embodiment 17

[0049] A display system comprising:

[0050] a head-mounted display configured to project light to a user to display augmented reality image content on a plurality of depth planes, the display comprising: [0051] one or more waveguides configured to project the light to the user, wherein the one or more waveguides are further configured to transmit light from a surrounding environment to the user; and [0052] one or more sensors configured to monitor the environment, [0053] wherein the display system is configured to: [0054] determine an expected emotional reaction of the user to an object in the environment; [0055] determine whether the expected emotional reaction of the user to the object is targeted for modification; and [0056] modify the expected emotional reaction of the user to the object by presenting augmented reality content to the user.

Embodiment 18

[0057] The display system of Embodiment 17, wherein the augmented reality content is the augmented reality image content.

Embodiment 19

[0058] The display system of any of Embodiments 17-18, wherein the object is associated with a user phobia.

Embodiment 20

[0059] The display system of any of Embodiments 17-19, wherein the display system is configured to visually overlay the augmented reality content on the object.

Embodiment 21

[0060] The display system of any of Embodiments 17-21, wherein the display system is configured to:

[0061] determine a distance of the object from the user;* and*

[0062] present the augmented reality content overlaying the object on a depth plane corresponding to the distance.

Embodiment 22

[0063] A display system comprising:

[0064] a head-mounted display configured to project light to a user to display augmented reality image content on a plurality of depth planes, the display comprising: [0065] one or more waveguides configured to project the light to the user, wherein the one or more waveguides are further configured to transmit light from a surrounding environment to the user; [0066] a sensor configured to monitor the environment, [0067] wherein the display system is configured to: [0068] determine an expected physical or behavioral reaction of the user to an object in the environment; [0069] determine whether the expected physical or behavioral reaction of the user to the object is targeted for modification; and [0070] modify the expected physical or behavioral reaction of the user to the object by presenting augmented reality content to the user.

Embodiment 23

[0071] The display system of Embodiment 1, wherein the provided stimulus comprises one or more images presented to at least one eye of the user.

Embodiment 24

[0072] The display system of Embodiment 23, wherein the one or more images comprise:

[0073] a first image presented to a first eye of the user;* and*

[0074] a second image presented to a second eye of the user, wherein the second image differs from the first image.

Embodiment 25

[0075] The display system of any of Embodiments 23-24, wherein the one or more images comprise a first image and a second image presented to a same eye of the user, wherein the second image differs from the first image.

Embodiment 26

[0076] The display system of any of Embodiments 23-25, wherein the second image differs from the first image in contour, color, luminance, flicker rate, or contrast.

Embodiment 27

[0077] The display system of any of Embodiments 23-26, wherein the first image comprises first portions, wherein the second image comprises second portions, and wherein the first portions and the second portions form a coherent image.

Embodiment 28

[0078] The display system of any of Embodiments 23-27, wherein the first image comprises a static image and the second image comprises a series of dynamic images.

Embodiment 29

[0079] The display system of any of Embodiments 23-28, wherein the first image comprises a stationary image and the second image comprises a moving image.

Embodiment 30

[0080] The display system of any of Embodiments 23-29, wherein one of the one or more images comprise a stationary portion and a moving portion.

Embodiment 31

[0081] The display system of any of Embodiments 23-30, wherein the one or more images comprise one or more images with different contrasts.

Embodiment 32

[0082] The display system of any of Embodiments 23-31, wherein the reaction comprises visual perception of the user in response to the presented one or more images.

Embodiment 33

[0083] The display system of Embodiment 32, wherein the reaction comprises a perceptual state of dominance or suppression.

Embodiment 34

[0084] The display system of any of Embodiments 32-33, wherein the reaction comprises:

[0085] suppression of one of the one or more images;

[0086] reassembly of portions of the one or more images;* or*

[0087] disappearance of at least a portion of one of the one or more images.

Embodiment 35

[0088] The display system of any of Embodiments 33-34, further comprising a user interface to measure the perceptual state of dominance or suppression.

Embodiment 36

[0089] The display system of any of Embodiments 33-35, wherein the display system is configured to use data from optokinetic nystagmus (OKN), visual evoked potential (VEP), magnetoencephalography (MEG), or blood-oxygen level dependent (BOLD) contrast imaging using functional magnetic resonance imaging (fMRI) to infer the perceptual state of dominance or suppression.

Embodiment 37

[0090] The display system of any of Embodiments 33-36, wherein the display system is configured to determine in the user the presence of a neurological condition associated with visual processing.

Embodiment 38

[0091] The display system of Embodiment 1, further comprising electrodes configured to measure electrical potentials from at least one or more sensors a user’s head or related to a user’s head.

Embodiment 39

[0092] The display system of Embodiment 38, wherein the electrodes are configured to be disposed at a plurality of locations on a user’s head, and wherein the display system is configured to simultaneously derive electrical potential measurements from the plurality of locations.

Embodiment 40

[0093] The display system of any of Embodiments 38-39, wherein the display system is configured to present a stimulus to a single eye of the user.

Embodiment 41

[0094] The display system of any of Embodiments 38-40, wherein the display system is configured to present a stimulus to a both eyes of the user simultaneously.

Embodiment 42

[0095] The display system of any of Embodiments 38-41, wherein the display system is configured to present a checkerboard stimulus alternating between colors.

Embodiment 43

[0096] The display system of any of Embodiments 38-42, wherein the display system is configured to present a stimulus that changes size within a time interval.

Embodiment 44

[0097] The display system of any of Embodiments 38-43, wherein the display system is configured to determine a smallest change that produces a response.

Embodiment 45

[0098] The display system of any of Embodiments 38-44, wherein the display system is configured to present a stimulus that changes color.

Embodiment 46

[0099] The display system of Embodiment 45, wherein the color changes to different shades of a similar color.

Embodiment 47

[0100] The display system of any of Embodiments 38-46, wherein the display system is configured to present a stimulus that changes luminance.

Embodiment 48

[0101] The display system of any of Embodiments 38-47, wherein the display system is configured to present a stimulus on a portion of the user’s visual field.

Embodiment 49

[0102] The display system of any of Embodiments 38-48, wherein the display system is configured to present a stimulus on a portion of the user’s visual field.

Embodiment 50

[0103] The display system of any of Embodiments 38-49, wherein the display system is configured to present stimuli on a plurality of depth planes.

Embodiment 51

[0104] The display system of any of Embodiments 38-50, wherein the display system is configured to present stimulus that alternates between different portions of the user’s visual field, and wherein the display system is configured to measure at least the difference in evoked event-related potentials between the stimulus alternating between the different portions.

Embodiment 52

[0105] The display system of any of Embodiments 38-51, wherein the display system is configured to present stimulus that changes between at least two colors.

Embodiment 53

[0106] The display system of Embodiment 52, wherein the display system is configured to present stimulus to the entire visual field of the user.

Embodiment 54

[0107] The display system of any of Embodiments 38-53, wherein the display system is configured to present stimulus that changes location from one area on the visual field to another.

Embodiment 55

[0108] The display system of any of Embodiments 38-54, wherein the display system is configured to present stimulus that changes orientation.

Embodiment 56

[0109] The display system of any of Embodiments 38-55, wherein the display system is configured to present stimulus that changes in boundary sharpness.

Embodiment 57

[0110] The display system of any of Embodiments 38-56, wherein the display system is configured to present stimulus that changes in boundary contrast.

Embodiment 58

[0111] The display system of any of Embodiments 38-57, wherein the display system is configured to present stimulus that changes a characteristic at a particular frequency.

Embodiment 59

[0112] The display system of Embodiment 58, wherein the display system is configured to measure a response in the user at the frequency that the stimulus is changing.

Embodiment 60

[0113] The display system of any of Embodiments 38-59, wherein the display system is configured to present stimulus comprising random dot stereograms.

Embodiment 61

[0114] The display system of any of Embodiments 38-60, wherein the display system is configured to compare the measured reaction to a predetermined response which indicates a normal reaction.

Embodiment 62

[0115] The display system of any of Embodiments 38-61, wherein the display system is configured to compare the measured reaction to a predetermined response indicating a particular neurological abnormality.

Embodiment 63

[0116] The display system of Embodiment 1, wherein the provided stimulus comprises a bright light.

Embodiment 64

[0117] The display system of Embodiment 63, wherein the reaction of the user comprises a reduced speed or a decreased amplitude at which a pupil of an eye of the user constricts.

Embodiment 65

[0118] The display system of any of Embodiments 63-64, wherein the neurological condition is associated with at least one of: lesions of the ipsilateral optic nerve, lesions of the pretectal area, lesions of the ipsilateral parasympathetics travelling in cranial nerve III, lesions of the pupillary constrictor muscle of the iris, lesions of the contralateral optic nerve, epilepsy, anxiety, addiction, intoxication, stroke, brain aneurysm, Guillain-Barre syndrome, and traumatic brain injury.

Embodiment 66

[0119] The display system of any of Embodiments 63-65, wherein the provided stimulus comprises a patch of light that is moved back and forth alternates between the first and second eyes of the user.

Embodiment 67

[0120] The display system of Embodiment 66, wherein the reaction of the user comprises dilation of a pupil of an eye of the user when illuminated by the patch of light.

Embodiment 68

[0121] The display system of any of Embodiments 66-67, wherein the neurological condition is at least one of multiple sclerosis, neuromyelitis optica, optic neuritis or traumatic optic neuropathy.

Embodiment 69

[0122] The display system of Embodiment 1, wherein the provided stimulus comprises an object that is moved from a distant vision zone to a near vision zone.

Embodiment 70

[0123] The display system of Embodiment 69, wherein the reaction of the user comprises abnormalities in constriction of a pupil of one or both eyes of the user as the object is moved from the distant vision zone to the near vision zone.

Embodiment 71

[0124] The display system of any of Embodiments 69-70, wherein the neurological condition is associated with at least one of: lesions of the ipsilateral optic nerve, lesions of the ipsilateral parasympathetics travelling in cranial nerve III, lesions of the pupillary constrictor muscle of the iris, bilateral lesions of the pathways from the optic tracts to the visual cortex, cognitive impairment, dementia, Alzheimer’s disease, Lewy body dementia, and cortical blindness.

Embodiment 72

[0125] The display system of Embodiment 1, wherein the provided stimulus comprises an object that is moved across the horizontal or vertical field of view.

Embodiment 73

[0126] The display system of Embodiment 73, wherein the reaction of the user comprises impairments in a smooth movement of one or both eyes of the user along horizontal or vertical axes in a field of view of the user.

Embodiment 74

[0127] The display system of any of Embodiments 72-73, wherein the neurological condition is associated with at least one of: cognitive impairment, Parkinson’s disease, dementia, Alzheimer’s disease, frontotemporal dementia, progressive supranuclear palsy, intoxication, addiction, traumatic brain injury, and cortical blindness.

Embodiment 75

[0128] The display system of Embodiment 1, wherein the provided stimuli comprises an object that is moved towards one or both eyes of the user.

Embodiment 76

[0129] The display system of Embodiment 75, wherein the reaction of the user comprises deviation of one or both eyes of the user along directions that are not medial.

Embodiment 77

[0130] The display system of any of Embodiments 75-76, wherein the neurological condition corresponds to at least one of dystonia, Parkinson’s disease, cortical basal degeneration or Lewy body degeneration.

Embodiment 78

[0131] The display system of Embodiment 1, wherein the provided stimuli comprises a first object at a first location and a second object at a second location, wherein the first and the second location are spaced apart.

Embodiment 79

[0132] The display system of Embodiment 78, wherein the reaction of the user comprises measurement of a speed, amplitude or frequency of saccadic movement of one or both eyes of the user.

Embodiment 80

[0133] The display system of any of Embodiments 76-79, wherein the neurological condition is associated with at least one of: cognitive impairment, dementia, Alzheimer’s disease, Huntington’s disease, Parkinson’s disease, cortical basal degeneration, Lewy body dementia and progressive supra nuclear palsy.

Embodiment 81

[0134] The display system of Embodiment 1, wherein the provided stimuli comprises a motionless target and an a different object located to a side of the motionless target.

Embodiment 82

[0135] The display system of Embodiment 81, wherein the reaction of the user comprises a failure to inhibit reflexive saccade.

Embodiment 83

[0136] The display system of any of Embodiments 81-82, wherein the neurological condition is associated with at least one of: dementia, Alzheimer’s disease, Huntington’s disease, Parkinson’s disease, cortical basal degeneration, Lewy body dementia, frontotemporal dementia and schizophrenia.

Embodiment 84

[0137] The display system of Embodiment 1, wherein the provided stimuli comprises bright and dark stripes that are moved across a visual field of the user.

Embodiment 85

[0138] The display system of Embodiment 84, wherein the reaction of the user comprises a movement of both eyes of the user that does not exhibit a movement across the visual field followed by a movement to midline at a greater speed than the movement across the visual field.

Embodiment 86

[0139] The display system of any of Embodiments 84-85, wherein the neurological condition is associated with at least one of: hemispatial neglect, multiple sclerosis, neuromyelitis optica, ataxia, intoxication, and stroke.

Embodiment 87

[0140] The display system of Embodiment 1, wherein the provided stimuli comprises a flickering patch of light and a non-flickering patch of light.

Embodiment 88

[0141] The display system of Embodiment 87, wherein the reaction of the user comprises a change in hue perception of the flickering patch of light.

Embodiment 89

[0142] The display system of any of Embodiments 87-88, wherein the neurological condition corresponds to active optic neuritis.

Embodiment 90

[0143] The display system of Embodiment 1, wherein the provided stimuli comprises an object that is moved rapidly towards one or both eyes of the user from different directions.

Embodiment 91

[0144] The display system of Embodiment 90, wherein the reaction of the user comprises a failure to blink.

Embodiment 92

[0145] The display system of any of Embodiments 90-91, wherein the neurological state corresponds to coma.

Embodiment 93

[0146] The display system of Embodiment 1, wherein the provided stimuli comprises an object that is simultaneously displayed on either side of the user.

Embodiment 94

[0147] The display system of Embodiment 93, wherein the reaction of the user comprises failure to perceive the object on one side when simultaneously displayed on either side of the user.

Embodiment 95

[0148] The display system of any of Embodiments 93-94, wherein the neurological condition is associated with stroke.

Embodiment 96

[0149] The display system of Embodiment 16, wherein the neurological state comprises increased neural plasticity.

Embodiment 97

[0150] The display system of Embodiment 16, wherein the display system is configured to provide stimuli to the user to increase neural plasticity.

Embodiment 98

[0151] The display system of Embodiment 97, wherein the stimuli are provided as part of a video game.

Embodiment 99

[0152] The display system of Embodiment 16, wherein the perception aid comprises guided image therapy.

Embodiment 100

[0153] The display system of Embodiment 16, wherein the perception aid comprises guided image and music therapy.

Embodiment 101

[0154] The display system of Embodiment 16, wherein the perception aid comprises visual stimuli associated by the user with positive feedback.

Embodiment 102

[0155] The display system of Embodiment 16, wherein the perception aid comprises visual stimuli associated by the user with negative feedback.

Embodiment 103

[0156] The display system of Embodiment 16, wherein the perception aid comprises audiovisual stimuli configured to condition a user through classical conditioning techniques.

Embodiment 104

[0157] The display system of Embodiment 16, wherein the perception aid comprises a audiovisual stimuli configured to condition a user through operant conditioning techniques.

Embodiment 105

[0158] The display system of Embodiment 16, wherein the display system is further configured to associate visual stimuli with positive or negative values.

Embodiment 106

[0159] The display system of Embodiment 16, wherein the neurological condition comprises pain.

Embodiment 107

[0160] The display system of Embodiment 106, wherein the perception aid comprises audiovisual stimuli configured to distract the user to alleviate sensation of the pain.

Embodiment 108

[0161] The display system of any of Embodiments 106-107, wherein the perception aid comprises audiovisual stimuli configured to relax the user to alleviate sensation of the pain.

Embodiment 109

[0162] The display system of any of Embodiments 106-108, wherein the perception aid comprises guided imagery to alleviate sensation of the pain.

Embodiment 110

[0163] The display system of any of Embodiments 106-109, wherein the display system further comprises a user interface element to receive user input regarding pain levels.

Embodiment 111

[0164] The display system of any of Embodiments 106-110, wherein the perception aids comprise audiovisual stimuli configured to alter a mood of a user.

Embodiment 112

[0165] The display system of Embodiment 111, wherein the perception aids comprise guided imagery.

Embodiment 113

[0166] The display system of Embodiment 16, wherein the perception aids comprise audiovisual stimuli configured to provide perceptual learning techniques to improve a user’s skills and abilities.

Embodiment 114

[0167] The display system of Embodiment 16, wherein the skills and abilities comprise skills of perception.

Embodiment 115

[0168] The display system of Embodiment 16, wherein the display system is configured to provide eye movement desensitization and reprocessing (EMDR) therapy.

Embodiment 116

[0169] The display system of Embodiment 115, wherein the perception aids comprise bilateral sensory input configured to induce side-to-side eye movement in the user.

Embodiment 117

[0170] The display system of Embodiment 16, wherein the display system is further configured to provide computer games that are tailored to enhance perceptual and cognitive abilities.

Embodiment 118

[0171] The display system of Embodiment 16, wherein the display system is configured to provide auditory discrimination applications to address speech and language difficulties.

Embodiment 119

[0172] The display system of Embodiment 16, wherein the display system is configured to provide a primary stimulus configured to engage a primary cognitive or sensory pathway and a secondary stimulus configured to engage a second cognitive or sensory pathway.

Embodiment 120

[0173] The display system of Embodiment 119, wherein the perception aids comprise letters or numbers associated with colors.

Embodiment 121

[0174] The display system of any of Embodiments 119-120, wherein the perception aids comprise music associated with colors.

Embodiment 122

[0175] The display system of any of Embodiments 119-121, wherein the perception aids comprise numbers and/or letters positioned in 3D space around the user.

Embodiment 123

[0176] The display system of Embodiment 16, wherein the perception aids comprise a virtual reflected image of the user, wherein a first portion of the image comprises an accurate depiction of the user and a second portion of the image, complementary to the first portion of the image, comprises a virtual reflection of the first portion to form a full image of the user.

Embodiment 124

[0177] The display system of Embodiment 123, wherein the display system is configured to cause the entire image to move with left-right symmetry.

Embodiment 125

[0178] The display system of Embodiment 16, wherein the perception aids comprise audiovisual stimuli that are based on objects presented to the user and that are configured to stimulate the senses of the user.

Embodiment 126

[0179] The display system of Embodiment 16, wherein the perception aids comprise audiovisual stimuli comprising objects at a first distance and objects at a second distance, wherein the objects at the second distance are shown to be blurred or obscured.

Embodiment 127

[0180] The display system of Embodiment 16, wherein the display system is configured to provide speech recognition and to display recognized speech as text, wherein the perception aids comprise text corresponding to speech detected by the display system.

Embodiment 128

[0181] The display system of Embodiment 1, further comprising a speaker configured to transmit audio content to an ear of the user, wherein the stimulus comprises the audio content.

Embodiment 129

[0182] The display system of Embodiment 128, wherein the stimulus comprises one or more instructions audible to the user.

Embodiment 130

[0183] The display system of Embodiment 2, wherein the stimulus comprises one or more visual instructions projected to the user.

Embodiment 131

[0184] The display system of Embodiment 1, further comprising a microphone configured to detect vocalization of the user.

Embodiment 132

[0185] The display system of Embodiment 1, wherein the display system is further configured to evaluate the alertness of the user based at least in part on the reaction of the user to the stimulus.

Embodiment 133

[0186] The display system of Embodiment 1 or Embodiment 16, wherein the neurological condition comprises a neurological condition associated with the alertness of the user.

Embodiment 134

[0187] The display system of Embodiment 16, wherein the perception aid comprises visual content selected to increase the alertness of the user.

Embodiment 135

[0188] The display system of Embodiment 16, wherein the perception aid comprises modifying visual content to increase the alertness of the user.

Embodiment 136

[0189] The display system of Embodiment 1, wherein the display system is further configured to evaluate the attention of the user based at least in part on the reaction of the user to the stimulus.

Embodiment 137

[0190] The display system of Embodiment 1, wherein the stimulus comprises an instruction to recite a sequence of words.

Embodiment 138

[0191] The display system of Embodiment 137, wherein the display system is further configured to evaluate the ability of the user to recite the sequence.

Embodiment 139

[0192] The display system of Embodiment 1, wherein the stimulus comprises an array of symbols and an instruction to identify one or more of the symbols based on one or more criteria presented to the user.

Embodiment 140

[0193] The display system of Embodiment 139, wherein the display system is further configured to determine the accuracy of the user’s identification of the one or more symbols.

Embodiment 141

[0194] The display system of Embodiment 1, wherein the display system is further configured to evaluate the state of orientation of the user based at least in part on the reaction of the user to the stimulus.

Embodiment 142

[0195] The display system of Embodiment 1, wherein the stimulus comprises an instruction to state information comprising the user’s full name.

Embodiment 143

[0196] The display system of Embodiment 1, wherein the stimulus comprises an instruction to state information comprising the user’s location.

Embodiment 144

[0197] The display system of Embodiment 1, wherein the stimulus comprises an instruction to state information comprising the current date.

Embodiment 145

[0198] The display system of any of Embodiments 142-144, wherein the display system is further configured to evaluate the user’s state of orientation based at least in part on the ability of the user to accurately state the instructed information.

Embodiment 146

[0199] The display system of Embodiment 145, further comprising one or more physiological sensors, wherein the display system is configured to determine if the user is experiencing panic based at least in part on physiological data.

Embodiment 147

[0200] The display system of Embodiment 146, wherein the display system is configured to evaluate the user’s state of orientation based at least in part on physiological data.

Embodiment 148

[0201] The display system of Embodiment 1 or Embodiment 16, wherein the neurological condition comprises a neurological condition associated with the state of orientation of the user.

Embodiment 149

[0202] The display system of Embodiment 16, wherein the perception aid comprises an audible or visual indication of the user’s location.

Embodiment 150

[0203] The display system of Embodiment 16, wherein the perception aid comprises an audible or visual indication of the time.

Embodiment 151

[0204] The display system of Embodiment 16, wherein the perception aid comprises calming audio or visual content responsive to a determination that the user is experiencing panic.

Embodiment 152

[0205] The display system of Embodiment 1, wherein the display system is further configured to evaluate a memory capability of the user based at least in part on the reaction of the user to the stimulus.

Embodiment 153

[0206] The display system of Embodiment 1, wherein the display system is further configured to evaluate a learning capability of the user based at least in part on the reaction of the user to the stimulus.

Embodiment 154

[0207] The display system of Embodiment 1, wherein the stimulus comprises information to be remembered by the user.

Embodiment 155

[0208] The display system of Embodiment 1, wherein the stimulus comprises instructing the user to recall information.

Embodiment 156

[0209] The display system of Embodiment 155, wherein the information comprises historical data.

Embodiment 157

[0210] The display system of Embodiment 1, wherein the stimulus comprises presenting information to the user and instructing the user to recall the information after a time delay.

Embodiment 158

[0211] The display system of Embodiment 157, wherein the time delay is at least one minute.

Embodiment 159

[0212] The display system of Embodiment 157, wherein the display system is configured to distract the user during the time delay.

Embodiment 160

[0213] The display system of Embodiment 1 or Embodiment 16, wherein the neurological condition is a neurological condition associated with the memory capability of the user.

Embodiment 161

[0214] The display system of Embodiment 1 or Embodiment 16, wherein the neurological condition is a neurological condition associated with the learning capability of the user.

Embodiment 162

[0215] The display system of Embodiment 16, wherein the perception aid comprises one or more instructions to perform a task.

Embodiment 163

[0216] The display system of Embodiment 1, wherein the display system is further configured to evaluate a language function of the user based at least in part on the reaction of the user to the stimulus.

Embodiment 164

[0217] The display system of Embodiment 1, wherein the stimulus comprises an instruction to speak about a topic.

Embodiment 165

[0218] The display system of Embodiment 164, wherein the display is configured to detect vocalization of the user following the instruction and evaluate the user’s spontaneous speech function based on the vocalization.

Embodiment 166

[0219] The display system of any of Embodiments 1, wherein the stimulus comprises a picture of an object and an instruction to state the name of the object.

Embodiment 167

[0220] The display system of Embodiment 164, wherein the display system is further configured to determine if the user accurately stated the name of the object.

Embodiment 168

[0221] The display system of Embodiment 1 or Embodiment 16, wherein the neurological condition is a neurological condition associated with the language function of the user.

Embodiment 169

[0222] The display system of Embodiment 16, wherein the perception aid comprises displaying a word to the user in response to a determination that the user is unable to recall the word.

Embodiment 170

[0223] The display system of Embodiment 16, wherein the perception aid comprises a notification to the user of a detected error in the user’s speech.

Embodiment 171

[0224] The display system of Embodiment 1, wherein the stimulus comprises a finger agnosia test.

Embodiment 172

[0225] The display system of Embodiment 1, wherein the reaction of the user comprises a user’s eye gaze.

Embodiment 173

[0226] The display system of Embodiment 1, wherein the reaction of the user comprises an amount of elapsed time from the stimulus to the reaction of the user.

Embodiment 174

[0227] The display system of Embodiment 1, wherein the neurological condition comprises Gerstmann Syndrome.

Embodiment 175

[0228] The display system of Embodiment 1, wherein the stimulus comprises an agraphia test.

Embodiment 176

[0229] The display system of Embodiment 175, wherein the agraphia test comprises prompting the user to write a word in space.

Embodiment 177

[0230] The display system of Embodiment 175, wherein the agraphia test comprises prompting the user to write a word on a document.

Embodiment 178

[0231] The display system of Embodiment 1, wherein the stimulus comprises a right-left disorientation test.

Embodiment 179

[0232] The display system of Embodiment 178, wherein the right-left disorientation test comprises prompting the user to touch a body part with a finger on the opposite side of the body as the finger.

Embodiment 180

[0233] The display system of Embodiment 178, wherein the right-left disorientation test comprises prompting the user to identify a direction.

Embodiment 181

[0234] The display system of Embodiment 1, wherein the stimulus comprises a calculations test.

Embodiment 182

[0235] The display system of Embodiment 181, wherein the calculations test comprises prompting the user to solve an arithmetic problem.

Embodiment 183

[0236] The display system of Embodiment 1, wherein the reaction of the user comprises a miscalculation.

Embodiment 184

[0237] The display system of Embodiment 1 or Embodiment 16, wherein the neurological condition comprises dyspraxia.

Embodiment 185

[0238] The display system of Embodiment 1 or Embodiment 16, wherein the neurological condition comprises Huntington’s Disease.

Embodiment 186

[0239] The display system of Embodiment 1 or Embodiment 16, wherein the neurological condition comprises posterior cortical atrophy.

Embodiment 187

[0240] The display system of Embodiment 1 or Embodiment 16, wherein the neurological condition comprises aphasia.

Embodiment 188

[0241] The display system of Embodiment 1 or Embodiment 16, wherein the neurological condition comprises agnosia.

Embodiment 189

[0242] The display system of Embodiment 1 or Embodiment 16, wherein the neurological condition comprises agraphia.

Embodiment 190

[0243] The display system of Embodiment 1 or Embodiment 16, wherein the neurological condition comprises dyslexia.

Embodiment 191

[0244] The display system of Embodiment 1 or Embodiment 16, wherein the neurological condition comprises dysgraphia.

Embodiment 192

[0245] The display system of Embodiment 1, wherein the stimulus comprises an apraxia test.

Embodiment 193

[0246] The display system of Embodiment 192, wherein the apraxia test comprises prompting the user to imitate a hand gesture.

Embodiment 194

[0247] The display system of Embodiment 1, wherein the display device is configured to compare an overlay of an augmented normal response with the reaction of the user.

Embodiment 195

[0248] The display system of Embodiment 16, wherein the display system is further configured to monitor the user’s arm, hand, leg, or foot movement.

Embodiment 196

[0249] The display system of Embodiment 16, wherein the stimuli directed to the user is repeated periodically to develop a habit, routine, or physical activity of the user.

Embodiment 197

[0250] The display system of Embodiment 16, wherein the perception aid comprises a hint to the user of the correct response.

Embodiment 198

[0251] The display system of Embodiment 16, wherein the perception aid comprises a visual aid that is provided to the user.

Embodiment 199

[0252] The display system of Embodiment 198, wherein the perception aid comprises a writing strategy that is provided to the user.

Embodiment 200

[0253] The display system of Embodiment 16, wherein the perception aid comprises a location provided by the display system of the location of the body part prompted by the display system.

Embodiment 201

[0254] The display system of Embodiment 16, wherein the perception aid comprises a display of the missing step of an arithmetic solution.

Embodiment 202

[0255] The display system of Embodiment 16, wherein the perception aid comprises an identification of the correct answer to a calculations test.

Embodiment 203

[0256] The display system of Embodiment 16, wherein the perception aid comprises images showing how a task is performed.

Embodiment 204

[0257] The display system of Embodiment 203, wherein the perception aid comprises images breaking a task down into its constituent components.

Embodiment 205

[0258] The display system of Embodiment 16, wherein the perception aid comprises providing an example of correct behavior.

Embodiment 206

[0259] The display system of Embodiment 16, wherein the perception aid comprises visual or auditory content for motivating the user to complete a task.

Embodiment 207

[0260] The display system of Embodiment 16, wherein the perception aid comprises a language translation.

Embodiment 208

[0261] The display system of Embodiment 1, wherein the provided stimulus comprises a visuospatial task.

Embodiment 209

[0262] The display system of Embodiment 208, wherein the reaction of the user comprises an indication of neglect or an abnormal construction ability.

Embodiment 210

[0263] The display system of Embodiment 209, wherein the neurological condition is associated with right parietal dysfunction.

Embodiment 211

[0264] The display system of Embodiment 1, wherein the provided stimulus comprises a cognitive task.

Embodiment 212

[0265] The display system of Embodiment 211, wherein the reaction of the user comprises an indication of an abnormal executive function.

Embodiment 213

[0266] The display system of Embodiment 212, wherein the neurological condition is associated with frontal lobe dysfunction.

Embodiment 214

[0267] The display system of Embodiment 1, wherein the provided stimulus comprises a logic or abstraction task.

Embodiment 215

[0268] The display system of Embodiment 214, wherein the reaction of the user comprises an indication of difficulty in thinking, reasoning, multi-step instructions, or categorizing.

Embodiment 216

[0269] The display system of Embodiment 215, wherein the neurological condition is associated with an area involving higher-order association cortex.

Embodiment 217

[0270] The display system of Embodiment 6, wherein the sensed stimuli comprise a visuospatial task.

Embodiment 218

[0271] The display system of Embodiment 217, wherein the display system is configured to determine an indication of neglect or an abnormal construction ability based at least in part on user response to the visuospatial task.

Embodiment 219

[0272] The display system of Embodiment 218 wherein the neurological condition is associated with right parietal dysfunction.

Embodiment 220

[0273] The display system of Embodiment 6, wherein the sensed stimuli comprise a cognitive task.

Embodiment 221

[0274] The display system of Embodiment 220,* wherein the display system is configured to determine an indication of an abnormal executive function based at least in part on user response to the cognitive task*

Embodiment 222

[0275] The display system of Embodiment 221, wherein the neurological condition is associated with frontal lobe dysfunction.

Embodiment 223

[0276] The display system of Embodiment 6, wherein the sensed stimuli comprise a logic or abstraction task.

Embodiment 224

[0277] The display system of Embodiment 1, wherein the provided stimulus comprises a light pattern having wavelength in one or more spectral ranges.

Embodiment 225

[0278] The display system of Embodiment 224, wherein the reaction of the user comprises a change in size of the pupil, wherein the change in the size of the pupil can vary based on the wavelengths in the light pattern.

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