Insect-based visual motion detection with contrast adaptation

2005 ◽  
Author(s):  
Patrick A. Shoemaker ◽  
David C. O'Carroll
Keyword(s):  
Motion Detection ◽  
Visual Motion ◽  
Contrast Adaptation ◽  
Visual Motion Detection

Implementation of visual motion detection with contrast adaptation

2001 ◽  
Author(s):  
Patrick A. Shoemaker ◽  
David C. O'Carroll ◽  
Andrew D. Straw
Keyword(s):  
Motion Detection ◽  
Visual Motion ◽  
Contrast Adaptation ◽  
Visual Motion Detection

scholarly journals The Right Hemisphere Planum Temporale Supports Enhanced Visual Motion Detection Ability in Deaf People: Evidence from Cortical Thickness

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Martha M. Shiell ◽  
François Champoux ◽  
Robert J. Zatorre
Keyword(s):  
Cortical Thickness ◽  
Motion Detection ◽  
Visual Motion ◽  
Right Hemisphere ◽  
Deaf People ◽  
Planum Temporale ◽  
Detection Thresholds ◽  
Temporal Area ◽  
The Right ◽  
Visual Motion Detection

After sensory loss, the deprived cortex can reorganize to process information from the remaining modalities, a phenomenon known as cross-modal reorganization. In blind people this cross-modal processing supports compensatory behavioural enhancements in the nondeprived modalities. Deaf people also show some compensatory visual enhancements, but a direct relationship between these abilities and cross-modally reorganized auditory cortex has only been established in an animal model, the congenitally deaf cat, and not in humans. Using T1-weighted magnetic resonance imaging, we measured cortical thickness in the planum temporale, Heschl’s gyrus and sulcus, the middle temporal area MT+, and the calcarine sulcus, in early-deaf persons. We tested for a correlation between this measure and visual motion detection thresholds, a visual function where deaf people show enhancements as compared to hearing. We found that the cortical thickness of a region in the right hemisphere planum temporale, typically an auditory region, was greater in deaf individuals with better visual motion detection thresholds. This same region has previously been implicated in functional imaging studies as important for functional reorganization. The structure-behaviour correlation observed here demonstrates this area’s involvement in compensatory vision and indicates an anatomical correlate, increased cortical thickness, of cross-modal plasticity.

scholarly journals Hemodynamic changes in visual motion detection measured by near infrared spectroscopy

2010 ◽  
Vol 6 (6) ◽  
pp. 572-572 ◽  
Author(s):  
M. Harasawa ◽  
A. Obata ◽  
T. Morita ◽  
T. Ito ◽  
T. Saito ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Motion Detection ◽  
Near Infrared ◽  
Visual Motion ◽  
Hemodynamic Changes ◽  
Visual Motion Detection
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