\"When a visual stimulus is presented to us, our visual brain regions show two kinds of...

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Medical Sciences

\"When a visual stimulus is presented to us, our visual brainregions show two kinds of electrophysiological signals. One is fastand comes very soon (<100 ms) after the stimulus is shown, andcan be traced to be coming from the retina through the thalamus.The other signal is slow and comes a bit later (>300 ms) afterthe stimulus, and can be traced to be coming from frontal andparietal regions. Disrupting these later signals that come fromfrontal and parietal regions however does disrupt vision. Whyshould this happen?\"
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The human eye is being constantly exposed to a large number of visual stimuli all the time The function of the retina is to only recieve these visual inputs and send them to the visual cortex These signals are fast and comes as soon as the stimulus is shown 100 ms Though it appears as if the eyes detects all See Answer

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