Forwarded from School of Cognitive Science (IPM) - News
School/Center
COGNITIVE SCIENCES
Online Seminar - Cognitive Neuroscience, fMRI
Functional architecture of cerebral cortex during naturalistic movie-watching
Reza Rajimehr
University of Cambridge
MRC Cognition and Brain Sciences Unit
Date : Wednesday, December 15, 2021
18:00 - 19:30 (Tehran)
15:30 - 17:00 (CET)
Azar 24, 1400
Denoscription
Characterizing the functional organization of cerebral cortex is a fundamental step in understanding how different kinds of information are processed in the brain. Monumental efforts over the past decades have uncovered the function of many cortical areas in response to selected stimulus categories. However, it is still unclear how cortical areas are organized during naturalistic vision and audition. Here we used high-resolution functional MRI data from 176 human subjects to map the macro-architecture of entire cerebral cortex based on responses to a 60-minute audiovisual movie stimulus. A data-driven clustering approach revealed a map of 24 functional areas/networks, each related to a specific aspect of sensory or cognitive processing. The map included three distinct executive control (domain-general) networks which showed a strong push-pull interaction with domain-specific regions in visual, auditory, and language cortex. The cortical parcellation scheme presented here provides a comprehensive and unified map of functionally defined areas, which could replace a large set of functional localizer maps.
This talk will be held online via Zoom:
https://mit.zoom.us/j/2750118580
Meeting ID: 275 011 8580
COGNITIVE SCIENCES
Online Seminar - Cognitive Neuroscience, fMRI
Functional architecture of cerebral cortex during naturalistic movie-watching
Reza Rajimehr
University of Cambridge
MRC Cognition and Brain Sciences Unit
Date : Wednesday, December 15, 2021
18:00 - 19:30 (Tehran)
15:30 - 17:00 (CET)
Azar 24, 1400
Denoscription
Characterizing the functional organization of cerebral cortex is a fundamental step in understanding how different kinds of information are processed in the brain. Monumental efforts over the past decades have uncovered the function of many cortical areas in response to selected stimulus categories. However, it is still unclear how cortical areas are organized during naturalistic vision and audition. Here we used high-resolution functional MRI data from 176 human subjects to map the macro-architecture of entire cerebral cortex based on responses to a 60-minute audiovisual movie stimulus. A data-driven clustering approach revealed a map of 24 functional areas/networks, each related to a specific aspect of sensory or cognitive processing. The map included three distinct executive control (domain-general) networks which showed a strong push-pull interaction with domain-specific regions in visual, auditory, and language cortex. The cortical parcellation scheme presented here provides a comprehensive and unified map of functionally defined areas, which could replace a large set of functional localizer maps.
This talk will be held online via Zoom:
https://mit.zoom.us/j/2750118580
Meeting ID: 275 011 8580
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