Virtual exercises to promote cognitive recovery in stroke patients: The comparison between HMD vs. s...
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Virtual exercises to promote cognitive recovery in stroke patients: The comparison between HMD vs. screen exposure displays. Pedro Gamito, PhD Laboratory of Computational Psychology University Lusófona of Humanities and Technologies Lisbon , Portugal. [email protected]

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Pedro gamito phd laboratory of computational psychology

Virtual exercises to promote cognitive recovery in stroke patients: The comparison between HMD vs. screen exposure displays

Pedro Gamito, PhD

LaboratoryofComputationalPsychology

University Lusófona ofHumanitiesand Technologies

Lisbon, Portugal

[email protected]


Introduction i

Introduction I

TBI/stroke

Attention

Executivefunctions

Dailyliveactivities


Pedro gamito phd laboratory of computational psychology

Introduction II

WWW

VR

Freeaccess

Motivation

Feedback

Repetition

Rehabilitation

Repetition

Feedback

Motivation

Online VR


Pedro gamito phd laboratory of computational psychology

Introduction III

Palm VR

Fishtank VR

Projection VR

Hand-based Displays

OcclusiveHBDs

Non-occlusiveHBDs

Stationary Displays

Head-based Displays


Pedro gamito phd laboratory of computational psychology

Introduction IV

  • less immersive;

  • no head tracker;

  • less expensive;

  • no hard/software proficiency;

  • available on almost every household.

Fishtank VR

Projection VR

  • more immersive;

  • head tracker;

  • more expensive;

  • hard/software

  • proficiency;

  • additional cost.

OcclusiveHBDs

NonocclusiveHBDs

Stationary Displays

Head-based Displays


Pedro gamito phd laboratory of computational psychology

Introduction V


Pedro gamito phd laboratory of computational psychology

Introduction VI

3D

VR


Pedro gamito phd laboratory of computational psychology

Introduction VII


Pedro gamito phd laboratory of computational psychology

Introduction VIII

dissemination

Fishtank VR

Projection VR

OcclusiveHBDs

NonocclusiveHBDs

Stationary Displays

Head-based Displays


Pedro gamito phd laboratory of computational psychology

  • MethodI

  • Participants

    • n = 17

    • M = 51 yearsold (SD = 14);

    • Male/Female = 58%/42%;

    • Stroke;

    • Memory and attention impairments (Mini Mental - Folstein et al, 1975);

    • No previous psychiatric disorders, drug abuse , severe depression or neurological disease.


Pedro gamito phd laboratory of computational psychology

  • Method II

Measures

  • Memory: Wechsler Memory Scale – WMS-III (Wechsler, 1954) & copy of Rey Complex Figure – RCF (Osterrieth, 1994)

  • Attention: Toulouse Piéron – TP (Piéron, 1955)


Pedro gamito phd laboratory of computational psychology

  • Method III

Procedures

  • Psychology Department of the Centro de Medicina de Reabilitação de Alcoitão, Lisbon, Portugal;

  • VR + WWW: Unity 2.5;

  • HP Intel® Core™2 Quad Processor Q6600 PC equipped with a GeForce GT 220;

  • Tasks: daily activities + working memory + visuo-spatial orientation + recognition memory


Pedro gamito phd laboratory of computational psychology

  • Method IV

Procedures

  • HMD: eMagin Z8 (n=9);

  • 21’’ Asus VE228D screen display (1680 X 1050 pixels of screen resolution) (n=8)


Pedro gamito phd laboratory of computational psychology

  • MethodV

Procedures

  • 13 sessions (one session per week);

  • first session, memory and attention tests (WMS-III, RCF and TP);

  • on second and third session patients acquired computer interaction skills on a training platform;

  • next nine sessions were used for cognitive training by VR.

  • last session, memory and attention tests (WMS-III, RCF and TP).


Pedro gamito phd laboratory of computational psychology

  • MethodVI


Pedro gamito phd laboratory of computational psychology

Results I

WMS mean scores (left figure) and RCF mean scores (right figure) to each experimental condition.

main effect of evaluation in WMS (F(1, 16) = 12.491; MSE = 117.813; p < 0.01) and RCF (F(1, 16) = 8.676; MSE = 19.709; p < 0.05)

no significant interaction effects were reported between factors (p > 0.05) in the WMS and RCF assessments

significant increase in WMS (M = 85.71; SD = 3.89 vs. M = 98.94; SD = 3.99) and RCF scores


Pedro gamito phd laboratory of computational psychology

Results II

TP mean scores to each experimental condition

attention increased from initial (M = 75.69; SD = 10.83) to final assessment (M = 108.56; SD = 16.23)

main effect of evaluation in the TP test (F(1, 16) = 15.935; MSE = 542.598; p < 0.01),

no significant interaction effects (p > 0.05)


Pedro gamito phd laboratory of computational psychology

Finalremarks

using VR exercises aimed at training memory and attention functions in stroke patients.

  • VR exercises aimed at training memory and attention functions in stroke patients;

  • No interaction effects between factors (p > 0.05),


Pedro gamito phd laboratory of computational psychology

Thanks !

labpsicom.ulusofona.pt

[email protected]


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