نتایج جستجو برای: visual cortex

تعداد نتایج: 478672  

Journal: :Proceedings of the National Academy of Sciences 1994

اعظمی, ابوالفضل , سلامی, محمود , طلائی, سید علیرضا , مهدوی, الهام ,

Background: Environmental signals have an essential role in the maturation of neural circuits during critical period of brain development. It has been shown that, change in visual signals during critical period of brain development changes structure and function of glutamate receptors in the visual cortex. After processing in visual cortex, part of visual signals goes to the hippocampus and mak...

Journal: :Neuropsychologia 2001
G Rees N Lavie

This review focuses on neuroimaging studies that address the relationship between selective attention, neural activity and visual awareness. Withdrawing attention from particular visual stimuli reduces modality-specific processing in posterior visual cortex, and when attention is fully engaged elsewhere, even highly salient but task-irrelevant stimuli can fail to evoke activity and reach awaren...

Amjad Hashemi, Seyed Navid Resalat, Valiallah Saba,

The objective of this study is development of driver’s sleepiness using Visually Evoked Potentials (VEP). VEP computed from EEG signals from the visual cortex. We use the Steady State VEPs (SSVEPs) that are one of the most important EEG signals used in human computer interface systems. SSVEP is a response to visual stimuli presented. We present a classification method to discriminate between...

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