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
Department of NMR, All India Institute of
Medical Sciences, New Delhi, Delhi, India,
Rajendra Prasad Centre For Ophthalmic Sciences, All
India Institute of Medical Sciences, New Delhi, Delhi,
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.
This abstract and the presentation materials are available to members only;
a login is required.