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The effect of hemispatial sunglasses on unilateral neglect among persons with right hemisphere stroke Monette, Angela Dawn
Abstract
This study examined the effectiveness of hemispatial glasses (HSG) in persons with left unilateral neglect (UN). The glasses reduced the amount of visual stimuli entering the non-neglected visual field and presumably enabled attention to be transferred to the neglected side. Two studies were conducted. Study #1 compared the performance of 13 persons with unilateral neglect on line bisection and shape cancellation with and without HSG. Three different types of HSG were compared. The response to the HSG varied across person, type of HSG, and test. One subject who demonstrated a benefit from the HSG participated in the second study. Study #2 assessed the impact of the HSG on activities of daily living (ADL) (eating, room look about, and shelf scanning) and standardized measures of neglect (shape cancellation). Single subject methodology (a multiple baseline design across behaviors with an embedded withdrawal) was used. The HSG had no effect on mobility or shelf scanning. Wearing the HSG during the room look about resulted in a marked improvement in scanning. The subject entered a generalization phase during which the HSG were worn for 4 hours daily but not for testing. During this phase, improvements on room look about increased and carryover occurred on the shape cancellation test. The data were analyzed visually and using semi-statistical techniques. Incidental findings include previously undocumented high variability in the shape cancellation test and BIT insensitivity to neglect over a large space. HSG are shown to be beneficial for neglect rehabilitation. The implications of the varied findings are discussed in terms of general neglect theory and treatment. As well, this study provides further support for the "forced use" model. The Subjective Neglect Questionnaire and a closing interview were performed to explore social validity issues.
Item Metadata
Title |
The effect of hemispatial sunglasses on unilateral neglect among persons with right hemisphere stroke
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
2000
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Description |
This study examined the effectiveness of hemispatial glasses (HSG) in persons with left
unilateral neglect (UN). The glasses reduced the amount of visual stimuli entering the non-neglected
visual field and presumably enabled attention to be transferred to the neglected side.
Two studies were conducted. Study #1 compared the performance of 13 persons with unilateral
neglect on line bisection and shape cancellation with and without HSG. Three different types of
HSG were compared. The response to the HSG varied across person, type of HSG, and test. One
subject who demonstrated a benefit from the HSG participated in the second study. Study #2
assessed the impact of the HSG on activities of daily living (ADL) (eating, room look about, and
shelf scanning) and standardized measures of neglect (shape cancellation). Single subject
methodology (a multiple baseline design across behaviors with an embedded withdrawal) was
used. The HSG had no effect on mobility or shelf scanning. Wearing the HSG during the room
look about resulted in a marked improvement in scanning. The subject entered a generalization
phase during which the HSG were worn for 4 hours daily but not for testing. During this phase,
improvements on room look about increased and carryover occurred on the shape cancellation
test. The data were analyzed visually and using semi-statistical techniques. Incidental findings
include previously undocumented high variability in the shape cancellation test and BIT
insensitivity to neglect over a large space. HSG are shown to be beneficial for neglect
rehabilitation. The implications of the varied findings are discussed in terms of general neglect
theory and treatment. As well, this study provides further support for the "forced use" model.
The Subjective Neglect Questionnaire and a closing interview were performed to explore social
validity issues.
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Extent |
9792188 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-07-28
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0089898
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
2001-05
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.