Intracranial Electrical Stimulation of the Superior Temporal Gyrus Evokes Rapid Responses in Human Visual Cortex.

Overview

1. Department of Psychology University of Michigan Ann Arbor Michigan USA

Abstract

Sounds can alter visual processing even at the earliest stages of the cortical pathway. However, our understanding of how acoustic signals are relayed to visual cortex is limited, particularly with respect to the involvement of different regions of auditory cortex in the most rapid stages of this communication across distinct visual areas. Here, we address this question by examining occipital intracranial responses to direct electrical stimulation of the superior temporal gyrus (STG) in 23 patients with epilepsy. Stimulation of mid‐ and posterior‐STG elicited responses in visual cortex as early as 18 ms after onset, with a distribution that favored lateral occipital cortex, lingual gyrus, and anterior calcarine regions near peripheral V1. Early visual cortex (V1/V2) responded most strongly to stimulation over mid‐STG, whereas lateral occipital cortex (near V5/hMT+) exhibited the most robust response to posterior STG stimulation. Responses in visual cortex were organized in a manner similar to that of nonhuman primates, with possible evidence for an exception over the occipital pole. These results support theories that human visual responses to sound are inherited in part from auditory cortex and provide insight into routes through which acoustic information may rapidly facilitate processing of visual input.

Reproduced under the paper's license (CC BY), from the paper cited above.

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Data

Datasets cited

• openneuro:ds004080, at OpenNeuro; found in the text, “Participants”

Data Availability Statement

Data were drawn from openneuro.org/datasets/ds004080. Code necessary to reproduce these results can be found at https://github.com/multisensory‐lab/msl_CCEP_stg2occ (https://github.com/multisensory-lab/msl_CCEP_stg2occ).

Reproduced under the paper's license (CC BY), from the paper cited above.

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Version 3, 28 September 2026

• Publisher: n/a → Wiley

Version 1, 27 September 2026: the first record

Recorded: type, language, journal, volume, issue, pages, dates, 2 authors, 4 keywords, 11 MeSH terms, 1 funder, 65 references.

Cite

This paper

Cunningham, E. C., & Brang, D. (2026). Intracranial Electrical Stimulation of the Superior Temporal Gyrus Evokes Rapid Responses in Human Visual Cortex. The European journal of neuroscience, 64(5), e70660. https://doi.org/10.1111/ejn.70660

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