# US 2017/0281069 A1 · Methods and Systems for Determining Sensory Motor Performance Based on Non-Postural Information

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- Number: US 2017/0281069 A1
- Document ID: US20170281069A1
- Status: Published application
- Kind: A1
- Application number: 15/510,396
- Filed: 2015-09-11
- Published: 2017-10-05
- Earliest claimed: 2014-09-12
- Assignees: Emory University; Georgia Tech Research Corporation
- Applicants: Emory University; Georgia Tech Research Corporation
- Inventors: Russell K. Gore; Michelle LaPlaca; David W. Wright; Tamara Espinoza; Shean Phelps; Brian Liu; Stephen Smith; Nicole Kosoris; Alessio Medda; Courtney Crooks
- Web page: https://patentgrep.com/patent/US20170281069A1

## CPC

- A61B 5/4023: {Evaluating sense of balance}
- A61B 5/1116: {Determining posture transitions}
- A61B 5/1124: {Determining motor skills}
- A61B 5/7475: {User input or interface means, e.g. keyboard, pointing device, joystick}
- A61B 5/1113: {Local tracking of patients, e.g. in a hospital or private home}
- A61B 5/1114: {Tracking parts of the body}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

Methods and systems relate to determining sensory motor performance based on user non-postural movements within a generated dynamic virtual environment. The generated environment requires users to: (i) utilize primary sensor inputs (e.g., vision, vestibular sensation and somatosensation); (ii) assess the dynamic virtual environment; and (iii) integrate and translate those inputs into movement to control the dynamic virtual environment. The methods may include receiving non-postural user input with respect to a state of one or more attributes of a dynamic virtual environment provided on a user interface for one or more sessions, the one or more attributes including a control object and a target which moves with respect to the control object; determining performance information based on the user input and the state of the one or more attributes for the one or more sessions; and determining sensory motor performance information from the performance information.

## Claims

### Claim 1

A method of determining balance performance, comprising:
receiving performance information with respect to a dynamic virtual environment, the performance information including user input data with respect to a state of one or more attributes of a dynamic virtual environment provided on a user interface for one or more sessions and the state of the one or more attributes, the one or more attributes including a control object that is moved directly based on user input and a target which moves with respect to and based on a movement of the control object, the user input relating to non-postural movement;
determining one or more performance variables based on the performance information; and
determining sensory motor performance information from the one or more performance variables.

### Claim 2 (depends on 1)

The method according to claim 1, further comprising:
generating the dynamic virtual environment according to a testing condition;
the one or more attributes of the dynamic virtual environment being fixed and/or dynamic based on the selected testing condition; and
providing the dynamic virtual environment to the user interface.

### Claim 3 (depends on 2)

The method according to claim 2, wherein the one or more attributes further include a visual surround and a target zone to which the control object is moved, further comprising:
generating the dynamic virtual environment for a session, wherein the one or more attributes are fixed and/or dynamic during the session; and
detecting user input with respect to the state of the one or more attributes.

### Claim 4 (depends on 1)

The method according claim 1, further comprising:
generating the dynamic virtual environment based on one or more testing conditions and/or one or more levels of difficulty;
wherein each of the testing conditions includes a fixed and/or dynamic attributes.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the sensory motor performance information is a quantitative and/or qualitative assessment of the user.

### Claim 6 (depends on 1)

The method according to claim 1, wherein the sensory motor performance information includes a sensory motor performance score.

### Claim 7 (depends on 1)

The method according to claim 1, wherein the non-postural movement relates to inputs with respect to head and/or neck movements of the user with respect to the dynamic virtual environment.

### Claim 8 (depends on 1)

The method according to claim 1, wherein the one or more performance variables includes a response error that is based on the position of the target with respect to the target zone.

### Claim 9 (depends on 1)

The method according to claim 1, further comprising:
determining whether there is a response error based on the performance information, the response error being based on the position of the target with respect to the target zone;
if the response error is determined, determining whether there is one or more user response errors based on the user input data during the response error; and
modifying the dynamic virtual environment based on the determination of the user response error.

### Claim 10 (depends on 9)

The method according to claim 9, wherein the one or more user response errors include first corrective head tilt, tilt error (or non-corrective response), response variability, response jerkiness, index measures of user control, or a combination thereof.

### Claim 11

A system for determining balance performance, comprising:
at least one processor; and
a memory, wherein the processor is configured to cause:
receiving performance information with respect to a dynamic virtual environment, the performance information including user input data with respect to a state of one or more attributes of a dynamic virtual environment provided on a user interface for one or more sessions and the state of the one or more attributes, the one or more attributes including a control object that is moved directly based on user input and a target which moves with respect to and based on a movement of the control object, the user input relating to non-postural movement;
determining one or more performance variables based on the performance information; and
determining sensory motor performance information from the one or more performance variables.

### Claim 12 (depends on 11)

The system according to claim 11, wherein the processor is further configured to cause:
generating the dynamic virtual environment according to a testing condition;
the one or more attributes of the dynamic virtual environment being fixed and/or dynamic based on the selected testing condition; and
providing the dynamic virtual environment to the user interface.

### Claim 13 (depends on 12)

The system according to claim 12, wherein the one or more attributes further include a visual surround and a target zone to which the control object is moved, and the processor is further configured to cause:
generating the dynamic virtual environment for a session, wherein the one or more attributes are fixed and/or dynamic during the session; and
detecting user input with respect to the state of the one or more attributes.

### Claim 14 (depends on 11)

The system according to claim 11, wherein the processor is further configured to cause:
generating the dynamic virtual environment based on one or more testing conditions and/or one or more levels of difficulty;
wherein each of the testing conditions includes a fixed and/or dynamic attributes.

### Claim 15 (depends on 11)

The system according to claim 11, wherein the sensory motor performance information is a quantitative and/or qualitative assessment of the user.

### Claim 16 (depends on 11)

The system according to claim 11, wherein the sensory motor performance information includes a sensory motor performance score.

### Claim 17 (depends on 11)

The system according to claim 11, wherein the non-postural movement relates to inputs with respect to head and/or neck movements of the user with respect to the dynamic virtual environment.

### Claim 18 (depends on 11)

The system according to claim 11, wherein the one or more performance variables includes a response error that is based on the position of the target with respect to the target zone.

### Claim 19 (depends on 11)

The system according to claim 11, wherein the processor is further configured to cause:
determining whether there is a response error based on the performance information, the response error being based on the position of the target with respect to the target zone;
if the response error is determined, determining whether there is one or more user response errors based on the user input data during the response error; and
modifying the dynamic virtual environment based on the determination of the user response error.

### Claim 20 (depends on 19)

The system according to claim 19, wherein the one or more user response errors include first corrective head tilt, tilt error (or non-corrective response), response variability, response jerkiness, index measures of user control, or a combination thereof.
