prestriate cortex

visually responsive regions in the cerebral cortex outside the striate cortex. The prestriate cortex includes Brodmann’s areas 18 and 19, as determined by cytoarchitecture, and additional areas in the temporal and parietal lobes. On the basis of function and connectivity, the prestriate cortex has been divided into multiple visual areas, including V2, V3, V4, and V5. Also called circumstriate cortex; extrastriate cortex; prestriate area.

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Psychology term of the day

November 17th 2024

REM sleep

rapid-eye-movement sleep: the stage of sleep, formerly called desynchronized sleep, in which most dreaming tends to occur during which electroencephalograms show activity that resembles wakefulness (hence, it is also known as paradoxical sleep) except for inhibition of most skeletal and cranial muscles. This stage has two phases—tonic and phasic—and it is largely during the phasic period that muscle twitches and bursts of rapid eye movements occur. REM sleep accounts for one quarter to one fifth of total sleep time. Compare NREM sleep.