Virtual exercises to promote cognitive recovery in stroke patients: The comparison between HMD vs....
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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]
Virtual exercises to promote cognitive recovery in stroke patients: The comparison between HMD vs. screen exposure displays Pedro Gamito, PhD Laboratory
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
Lusfona of Humanities and Technologies Lisbon, Portugal
[email protected]
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Introduction I TBI/stroke Attention Executive functions Daily
live activities
Introduction IV Fishtank VR Projection VR Occlusive HBDs
Nonocclusiv e HBDs Stationary Displays Head-based Displays -more
immersive; -head tracker; -more expensive; -hard/software
proficiency; -additional cost. -less immersive; -no head tracker;
-less expensive; -no hard/software proficiency; -available on
almost every household.
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Introduction V
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Introduction VI
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Introduction VII
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Introduction VIII Fishtank VR Projection VR Occlusive HBDs
Nonocclusiv e HBDs Stationary Displays Head-based Displays
dissemination
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Participants n = 17 M = 51 years old (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. Method I
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Measures Method II Memory: Wechsler Memory Scale WMS-III
(Wechsler, 1954) & copy of Rey Complex Figure RCF (Osterrieth,
1994) Attention: Toulouse Piron TP (Piron, 1955)
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Procedures Psychology Department of the Centro de Medicina de
Reabilitao de Alcoito, Lisbon, Portugal; VR + WWW: Unity 2.5; HP
Intel Core2 Quad Processor Q6600 PC equipped with a GeForce GT 220;
Tasks: daily activities + working memory + visuo- spatial
orientation + recognition memory Method III
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Procedures HMD: eMagin Z8 (n=9); 21 Asus VE228D screen display
(1680 X 1050 pixels of screen resolution) (n=8) Method IV
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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). Method V
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Method VI
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Procedures: session 0 - training Method IV
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Procedures: session 1 - daily life activities Method V
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Procedures: session 2 finding way to minimarket + buying
several items Method VI
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Procedures: session 3 - finding the way back home Method
VII
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Procedures: session 4 - finding a different way to the
minimarket Method VIII
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Procedures: session 5 - finding a yellow dressed BOT Method
IX
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Procedures: session 6 - finding the door number 29 Method
X
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Procedures: session 7 - retention of outdoor advertisements
Method XI
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Procedures: session 8 - Mini-Mental State Examination (Folstein
et al, 1975) and Short test of Mental Status (Kokmen et al, 1991)
Method XII
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Procedures: session 9 - spawned on a different local of the VR
world, the patient had to find his way back home with an item
bought at the minimarket Method XIII
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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) significant
increase in WMS (M = 85.71; SD = 3.89 vs. M = 98.94; SD = 3.99) and
RCF scores no significant interaction effects were reported between
factors (p > 0.05) in the WMS and RCF assessments
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Results II TP mean scores to each experimental condition main
effect of evaluation in the TP test (F(1, 16) = 15.935; MSE =
542.598; p < 0.01), attention increased from initial (M = 75.69;
SD = 10.83) to final assessment (M = 108.56; SD = 16.23) no
significant interaction effects (p > 0.05)
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VR exercises aimed at training memory and attention functions
in stroke patients; No interaction effects between factors (p >
0.05), Final remarks using VR exercises aimed at training memory
and attention functions in stroke patients.