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Modular Phoneme Processing in Human Superior Temporal Gyrus

Cleary, D. R.; Tchoe, Y.; Bourhis, A.; Dickey, C.; Stedelin, B.; Ganji, M.; Lee, S. H.; Lee, J.; Siler, D.; Brown, E. C.; Rosen, B. Q.; Kaestner, E. J.; Yang, J. C.; Soper, D. J.; Han, S. J.; Paulk, A. C.; Cash, S. S.; Raslan, A. M.; Dayeh, S. A.; Halgren, E.

2024-01-20 neuroscience
10.1101/2024.01.17.576120 bioRxiv
Show 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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