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Rehabilitation of Hemianopia Rescues Multisensory Integration and Feature Discrimination

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title
Rehabilitation of Hemianopia Rescues Multisensory Integration and Feature Discrimination
author
Bean, Naomi Lynn
abstract
Hemianopia is a blindness in one hemifield of space caused by damage to visual cortex on the opposite side of the brain. This blindness persists despite other visual areas being physically spared from the cortical insult. One such area is the midbrain superior colliculus (SC). Neurons in the deep layers of the SC receive inputs for multiple sensory modalities: visual, auditory, and somatosensory. When stimuli from two of these modalities (cross-modal stimuli) are presented in spatiotemporal concordance, they are integrated and their combined signal enhanced (multisensory enhancement). However, these neurons in the deep layers of the SC are unable to respond to visual stimuli under hemianopia.
subject
Hemianopia
Multisensory Integration
Rehabilitation
Superior Colliculus
Vision
Visual Discrimination
contributor
Rowland, Benjamin A (advisor)
Maier, Joost (committee member)
Salinas, Emilio (committee member)
Stanford, Terrence (committee member)
Laurienti, Paul (committee member)
date
2023-07-25T17:48:39Z (accessioned)
2023-07-25T17:48:39Z (available)
2023 (issued)
degree
Neurobiology & Anatomy (discipline)
identifier
http://hdl.handle.net/10339/102255 (uri)
language
en (iso)
publisher
Wake Forest University
type
Dissertation

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