Much higher covariation with foveation timing by superior colliculus than primary visual cortical neuronal activity.
Overview
- Werner Reichardt Centre for Integrative Neuroscience, University of Tübingen, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
Abstract
The superior colliculus (SC) is a potent driver for orienting movements, but it also possesses short-latency visual responses. Even though such responses largely derive from direct primary visual cortical (V1) input, their relationship to V1 activity has never been analyzed with the same experimental subjects and stimuli. Here, we revisited pioneering observations that trial-by-trial variability in either SC or V1 visual responses may predict eye movement timing variability. We found that V1 covariation with behavioral variability was virtually non-existent in comparison to the SC, whether with respect to visual response onset latency, visual response strength, or pre-stimulus state. By far, our largest predictor of behavioral variability was visual response strength in SC visual-motor neurons. These results suggest that the SC reformats its sensory inputs for exploitation of the SC’s proximity to the motor periphery; V1 aids in jumpstarting the sensing process, but the SC much more directly supports visually driven orienting.
Reproduced under the paper's license (CC BY), from the paper cited above.
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• Data: All data reported in this paper will be shared by the lead contact upon request. • Code: This paper does not report original code. • Additional information: Any additional information required to reanalyze the data reported in this paper is available from the lead contact upon request.
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Version 1, 30 September 2026: the first record
Recorded: type, language, journal, volume, issue, pages, dates, 7 authors, 4 keywords, 4 funders, 94 references.
Cite
This paper
Trottenberg, C., Yu, Y., Zhang, T., Baumann, M. P., Malevich, T., Prasad, S., & Hafed, Z. M. (2026). Much higher covariation with foveation timing by superior colliculus than primary visual cortical neuronal activity. iScience, 29(4), 115432. https://
BibTeX
@article{trottenberg2026
author = {Trottenberg, Carlotta and Yu, Yue and Zhang, Tong and Baumann, Matthias P. and Malevich, Tatiana and Prasad, Shweta and Hafed, Ziad M.},
title = {{Much higher covariation with foveation timing by superior colliculus than primary visual cortical neuronal activity}},
journal = {iScience},
year = {2026},
month = mar,
volume = {29},
number = {4},
pages = {115432},
publisher = {Elsevier},
issn = {2589-0042},
doi = {10.1016/
url = {https://
pmid = {42006324},
pmcid = {PMC13084408}
}
RIS
TY - JOUR
AU - Trottenberg, Carlotta
AU - Yu, Yue
AU - Zhang, Tong
AU - Baumann, Matthias P.
AU - Malevich, Tatiana
AU - Prasad, Shweta
AU - Hafed, Ziad M.
TI - Much higher covariation with foveation timing by superior colliculus than primary visual cortical neuronal activity
T2 - iScience
J2 - iScience
PY - 2026
DA - 2026/
VL - 29
IS - 4
SP - 115432
SN - 2589-0042
PB - Elsevier
DO - 10.1016/
UR - https://
LA - en
ER -
CSL-JSON
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"container-title": "iScience",
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{
"family": "Baumann",
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"given": "Tatiana"
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"URL": "https://
"language": "en",
"issued": {
"date-parts": [
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