Modular Phoneme Processing in Human Superior Temporal Gyrus
Daniel R. ClearyiD, Youngbin TchoeiD, Andrew M. BourhisiD, Charles W. DickeyiD, Brittany StedeliniD, Mehran Ganji, S. H. Lee, Jihwan LeeiD, Dominic Aaron SileriD, Erik C. BrowniD, Burke Q. RoseniD, Erik J. KaestneriD, Jimmy Chen YangiD, Daniel J. SoperiD, Seunggu Jude HaniD, Angelique Christine PaulkiD, Sydney S. CashiD, Ahmed M. T. RaslaniD, Shadi A. DayehiD, Eric HalgreniD
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 50-200m 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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