Abstract #3028
Texture and depth processing in Early, late Blind and sighted controls by haptic stimulus: An fMRI study
Ankeeta Sharma 1 , Senthil Kumaran 1 , and Rohit Saxena 2
1
Department of NMR, All India Institute of
Medical Sciences, New Delhi, Delhi, India,
2
Dr.
Rajendra Prasad Centre For Ophthalmic Sciences, All
India Institute of Medical Sciences, New Delhi, Delhi,
India
Objects have characteristic attributes (such as two or
three-dimensional shape, textute, depth etc) that can be
perceived both visually and haptically. Therefore,
object-related brain areas may hold a representation of
objects in both modalities. Humans have an exceptional
ability to estimate the shape of objects from a
combination of visual cues such as shading, texture etc.
In the human brain, the ventral object visual pathway
can generate distinct representations for a virtually
unlimited type of texture and depth cues. Haptic
perceptionof object or shape categories evokes distinct
patterns of neural activation in ventral occipito-
temporal cortexthat are widely distributed.
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