The contribution of the koniocellular visual pathway to aversive learning in human visual cortex.
Paper
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The authors' code
MATLAB · 60 lines · 1.7 KB · no license
- cd '/Users/katemccain/Documents/Konio/single_sub_hilbert'
- clear
- filemat = getfilesindir(pwd, '*hamp8');
- filemat21 = filemat(1:4:end,:);
- filemat22 = filemat(2:4:end,:);
- filemat23 = filemat(3:4:end,:);
- filemat24 = filemat(4:4:end,:);
- % luminance stimuli
- % use topottest function to make 3d arrays: elec by time point by subject
- [~, mat3d_1, mat3d_2] = topottest(filemat22, filemat21, [], [], 0);
- BFmap_lumi = nan(size(mat3d_1,1), size(mat3d_1,2));
- [effect_dist_bootstrap, nullperm_dist_bootstrap] = bootstrap_diffs(mat3d_1,mat3d_2);
- for elec = 1:size(mat3d_1,1)
- for timepoint = 1:size(mat3d_1,2)
- BFmap_lumi(elec, timepoint) = bootstrap2BF_z(squeeze(effect_dist_bootstrap(elec,timepoint,:)),squeeze(nullperm_dist_bootstrap(elec,timepoint,:)), 0);
- end
- disp('elec: '), fprintf(num2str(elec))
- end
- %
- % % konio stimuli
- % % use topottest function to make 3d arrays: elec by time point by subject
- %
- % [~, mat3d_1, mat3d_2] = topottest(filemat24, filemat23, [], [], 0);
- %
- % BFmap_konio = nan(size(mat3d_1,1), size(mat3d_1,2));
- %
- % [effect_dist_bootstrap, nullperm_dist_bootstrap] = bootstrap_diffs(mat3d_1,mat3d_2);
- %
- % for elec = 1:size(mat3d_1,1)
- % for timepoint = 1:size(mat3d_1,2)
- % BFmap_konio(elec, timepoint) = bootstrap2BF_z(squeeze(effect_dist_bootstrap(elec,timepoint,:)),squeeze(nullperm_dist_bootstrap(elec,timepoint,:)), 0);
- % end
- % disp('elec: '), fprintf(num2str(elec))
- % end
- % BFmap_konio and BFmap_Lumi converted to log10
- %BFmap_lumiLog10 = log10(BFmap_lumi);
- %BFmap_konioLog10 = log10(BFmap_konio);
- %SaveAvgFile('BFmap_lumiLog10.at', BFmap_lumiLog10, [], [], 500, [], [], [], [], 301);
- %SaveAvgFile('BFmap_konioLog10.at', BFmap_konioLog10, [], [], 500, [], [], [], [], 301);
KonioBayesfactors.m, no license · at the source
Overview
- Department of Psychology, University of Florida, Gainesville, Florida, United States
- Institute for Human Neuroscience, Boys Town National Research Hospital, Boys Town, Nebraska, United States
Abstract
The present study examined the extent to which koniocellular inputs to the visual cortex are sensitive to aversive conditioning, as indexed by electrocortical activation modulated by conditioned threat. A simple differential aversive conditioning task was used to evoke visuocortical activation in response to conditioned threat (CS+) and safety (CS−) cues in each condition (tritan and luminance). The tritanopic technique was used to convey cues to S-cones that transmit color-opponent signals to regions along the koniocellular visual pathway (tritan condition). In addition, a luminance condition was included to examine visuocortical activation in response to achromatic cues that preferentially activate luminance channels (luminance condition). Steady-state visual evoked potential (ssVEP) responses to conditioned threat and safety cues were analyzed in each condition (luminance and tritan) using a nonparametric Bayesian bootstrap approach. Results showed decisive evidence (logarithmic Bayes factors, logBF10 > 2) of aversive learning in the tritan and luminance conditions, indicated by increased ssVEP envelope amplitudes in response to the CS+ compared to the CS− stimuli in occipital sensors. To further examine the koniocellular involvement in aversive learning, transitive Bayes factors were computed to compare the relative magnitude of the conditioning effects across conditions. Although transitive Bayesian comparisons showed decisive evidence indicating the magnitude of the luminance conditioning effect was larger than the tritan conditioning effect, differences in adaptation across conditions warrant further investigation. Importantly, the present study demonstrated that both koniocellular and luminance channel inputs were modulated by aversive conditioning in the human visual cortex.
Reproduced under the paper's license (CC BY), from the paper cited above.
Repository
Its files are read in the Code ↔ Paper reader above.
OSF yue78
Availability: 1 check, the latest on 28 September 2026: the link answers (HTTP 200)
- 28 September 2026: the link answers (HTTP 200)
4 files
- zxa6h/
KonioBayesfactors.m , MATLAB, 60 lines - zxa6h/
Pupil_konio.m , MATLAB, 37 lines - zxa6h/
konio_postpro.m , MATLAB, 16 lines - zxa6h/
koniosinglesub_prepro.m , MATLAB, 39 lines
The paper's code and data availability statement is in the Data section.
Tracing map
Proposed by the machine: these links were found in the paper and verified at the source, without human review. The map will receive a Zenodo DOI once one of the paper's authors has validated it with their ORCID.
What the map holds:
- 1 repository of the authors' code, each at its verified commit, with its license and how the link was found in the paper;
- 4 scripts, each with its path and the digest of its content;
- no match between paragraphs and code yet;
- neither the text of the paper nor the code itself.
Its JSON (tracing-map.json) is deposited on Zenodo with its DOI once the map is validated.
Data
No dataset and no data link were found in the paper.
Data availability
Source data for this study are openly available at https://
Reproduced under the paper's license (CC BY), from the paper cited above.
Versions
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Version 2, 28 September 2026
- Publisher: n/a → American Physiological Society
Version 1, 28 September 2026: the first record
Recorded: type, language, journal, volume, issue, pages, dates, 3 authors, 4 keywords, 13 MeSH terms, 2 funders, 77 references.
Cite
This paper
McCain, K. J., Petro, N. M., & Keil, A. (2026). The contribution of the koniocellular visual pathway to aversive learning in human visual cortex. Journal of neurophysiology, 135(6), 1529-1539. https://
BibTeX
@article{mccain2026contr
author = {McCain, Katherine J and Petro, Nathan M and Keil, Andreas},
title = {{The contribution of the koniocellular visual pathway to aversive learning in human visual cortex}},
journal = {Journal of neurophysiology},
year = {2026},
month = may,
volume = {135},
number = {6},
pages = {1529--1539},
publisher = {American Physiological Society},
issn = {0022-3077},
doi = {10.1152/
url = {https://
pmid = {42113563},
pmcid = {PMC13480465}
}
RIS
TY - JOUR
AU - McCain, Katherine J
AU - Petro, Nathan M
AU - Keil, Andreas
TI - The contribution of the koniocellular visual pathway to aversive learning in human visual cortex
T2 - Journal of neurophysiology
J2 - J Neurophysiol
PY - 2026
DA - 2026/
VL - 135
IS - 6
SP - 1529
EP - 1539
SN - 0022-3077
PB - American Physiological Society
DO - 10.1152/
UR - https://
LA - en
ER -
CSL-JSON
{
"id": "10.1152/
"type": "article-journal",
"title": "The contribution of the koniocellular visual pathway to aversive learning in human visual cortex",
"container-title": "Journal of neurophysiology",
"author": [
{
"family": "McCain",
"given": "Katherine J"
},
{
"family": "Petro",
"given": "Nathan M"
},
{
"family": "Keil",
"given": "Andreas"
}
],
"container-title-short":
"volume": "135",
"issue": "6",
"page": "1529-1539",
"DOI": "10.1152/
"PMID": "42113563",
"PMCID": "PMC13480465",
"ISSN": "0022-3077",
"publisher": "American Physiological Society",
"URL": "https://
"language": "en",
"issued": {
"date-parts": [
[
2026,
5,
11
]
]
}
}
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