+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Direct intracranial recording of body-selective responses in human extrastriate visual cortex

Neuropsychologia 45(11): 2621-2625
Direct intracranial recording of body-selective responses in human extrastriate visual cortex
We recorded intracranial local field potentials (iLFPs) in right extrastriate visual cortex of a patient prior to surgery for epilepsy. Visual evoked potentials revealed a highly selective response to images of bodies, relative to faces, mammals, and tools, which was restricted to a focal region in the lateral occipitotemporal cortex that corresponds to the location of the extrastriate body area (EBA). Body-selective activity started around 190 ms and peaked 260 ms post-stimulus onset. These findings provide the first direct electrophysiological evidence for an early visual processing stage in human lateral occipitotemporal cortex that is specialized for processing human body shapes.

Accession: 015516615

PMID: 17499819

DOI: 10.1016/j.neuropsychologia.2007.04.005

Related references

Dissociable neural responses to hands and non-hand body parts in human left extrastriate visual cortex. Journal of Neurophysiology 103(6): 3389-3397, 2010

Not one extrastriate body area: using anatomical landmarks, hMT+, and visual field maps to parcellate limb-selective activations in human lateral occipitotemporal cortex. Neuroimage 56(4): 2183-2199, 2011

Visual cortex extrastriate body-selective area activation in congenitally blind people "seeing" by using sounds. Current Biology 24(6): 687-692, 2014

Covariations in ERP and PET measures of spatial selective attention in human extrastriate visual cortex. Human Brain Mapping 5(4): 273-279, 1997

FMRI and ERP studies of the organization of spatial selective attention in human extrastriate visual cortex. Society for Neuroscience Abstracts 23(1-2): 301, 1997

Developmental continuity and change in responses to social and nonsocial categories in human extrastriate visual cortex. Frontiers in Human Neuroscience 3: 25-25, 2009

Visual processing in the human cortex Results from direct cortical recording of visual evoked potentials. Neurology 44(4 SUPPL 2): A232, 1994

Descending projections from extrastriate visual cortex modulate responses of cells in primary auditory cortex. Cerebral Cortex 21(11): 2620-2638, 2012

Direct cortical recording of pattern reversal visual evoked responses better defines primary visual cortex than cortical stimulation of subdural electrodes. Epilepsia 41(Supplement 7): 168, 2000

Selective attention gates visual processing in the extrastriate cortex. Science 229(4715): 782-784, 1985