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Updated: Jul 4, 2025

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
Published on: June 29, 2021
Modular Phoneme Processing in Human Superior Temporal Gyrus
Daniel R Cleary1,2, Youngbin Tchoe3, Andrew Bourhis3
1Department of Neurosurgery, University of California, San Diego, La Jolla, CA 92093, USA.
Abstract:
Modular organization is fundamental to cortical processing, but its presence is human association cortex is unknown. We characterized phoneme processing with 128-1024 channel micro-arrays at 50-200µm pitch on superior temporal gyrus of 7 patients. High gamma responses were highly correlated within ~1.7mm diameter modules, sharply delineated from adjacent modules with distinct time-courses and phoneme-selectivity. We suggest that receptive language cortex may be organized in discrete processing modules.
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