Category-Selectivity in Human Visual Cortex Follows Cortical Topology: A Grouped icEEG Study
| Autor: | Christopher R. Conner, Vatche G. Baboyan, Nitin Tandon, Cihan Mehmet Kadipasaoglu, Meagan Lee Whaley |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Male
0301 basic medicine Vision Physiology Social Sciences Event-Related Potentials lcsh:Medicine Cognition Learning and Memory 0302 clinical medicine Medicine and Health Sciences Psychology Right Hemisphere lcsh:Science Visual Cortex Cerebral Cortex Clinical Neurophysiology Object Recognition Temporal cortex Brain Mapping Multidisciplinary Cognitive neuroscience of visual object recognition Brain Electroencephalography Middle Aged Sulcus Temporal Lobe Electrophysiology Bioassays and Physiological Analysis medicine.anatomical_structure Pattern Recognition Visual Brain Electrophysiology Female Sensory Perception Occipital Lobe Anatomy Research Article Adult Imaging Techniques Neurophysiology Neuroimaging Research and Analysis Methods Topology Temporal lobe Young Adult 03 medical and health sciences Diagnostic Medicine Memory Event-related potential medicine Humans Left Hemisphere Electrophysiological Techniques lcsh:R Cognitive Psychology Biology and Life Sciences Lateral occipital sulcus 030104 developmental biology Visual cortex Cognitive Science Perception lcsh:Q Electrocorticography Occipital lobe Cerebral Hemispheres 030217 neurology & neurosurgery Neuroscience |
| Zdroj: | PLoS ONE, Vol 11, Iss 6, p e0157109 (2016) PLoS ONE |
| ISSN: | 1932-6203 |
| Popis: | Neuroimaging studies suggest that category-selective regions in higher-order visual cortex are topologically organized around specific anatomical landmarks: the mid-fusiform sulcus (MFS) in the ventral temporal cortex (VTC) and lateral occipital sulcus (LOS) in the lateral occipital cortex (LOC). To derive precise structure-function maps from direct neural signals, we collected intracranial EEG (icEEG) recordings in a large human cohort (n = 26) undergoing implantation of subdural electrodes. A surface-based approach to grouped icEEG analysis was used to overcome challenges from sparse electrode coverage within subjects and variable cortical anatomy across subjects. The topology of category-selectivity in bilateral VTC and LOC was assessed for five classes of visual stimuli—faces, animate non-face (animals/body-parts), places, tools, and words—using correlational and linear mixed effects analyses. In the LOC, selectivity for living (faces and animate non-face) and non-living (places and tools) classes was arranged in a ventral-to-dorsal axis along the LOS. In the VTC, selectivity for living and non-living stimuli was arranged in a latero-medial axis along the MFS. Written word-selectivity was reliably localized to the intersection of the left MFS and the occipito-temporal sulcus. These findings provide direct electrophysiological evidence for topological information structuring of functional representations within higher-order visual cortex. |
| Databáze: | OpenAIRE |
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