The sequence of cortical activity inferred by response latency variability in the human ventral pathway of face processing

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Lin, Jo Fu Lotus
dc.contributor.author Silva-Pereyra, Juan
dc.contributor.author Chou, Chih Che
dc.contributor.author Lin, Fa Hsuan
dc.date.accessioned 2018-05-22T14:33:04Z
dc.date.available 2018-05-22T14:33:04Z
dc.date.issued 2018-12-01
dc.identifier.citation Lin , J F L , Silva-Pereyra , J , Chou , C C & Lin , F H 2018 , ' The sequence of cortical activity inferred by response latency variability in the human ventral pathway of face processing ' Scientific Reports , vol 8 , no. 1 , 5836 , pp. 1-11 . DOI: 10.1038/s41598-018-23942-x en
dc.identifier.issn 2045-2322
dc.identifier.other PURE UUID: 356e38d2-254f-4414-9f66-9341a00b87b9
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/the-sequence-of-cortical-activity-inferred-by-response-latency-variability-in-the-human-ventral-pathway-of-face-processing(356e38d2-254f-4414-9f66-9341a00b87b9).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85045400596&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/19234200/s41598_018_23942_x.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/30843
dc.description.abstract Variability in neuronal response latency has been typically considered caused by random noise. Previous studies of single cells and large neuronal populations have shown that the temporal variability tends to increase along the visual pathway. Inspired by these previous studies, we hypothesized that functional areas at later stages in the visual pathway of face processing would have larger variability in the response latency. To test this hypothesis, we used magnetoencephalographic data collected when subjects were presented with images of human faces. Faces are known to elicit a sequence of activity from the primary visual cortex to the fusiform gyrus. Our results revealed that the fusiform gyrus showed larger variability in the response latency compared to the calcarine fissure. Dynamic and spectral analyses of the latency variability indicated that the response latency in the fusiform gyrus was more variable than in the calcarine fissure between 70 ms and 200 ms after the stimulus onset and between 4 Hz and 40 Hz, respectively. The sequential processing of face information from the calcarine sulcus to the fusiform sulcus was more reliably detected based on sizes of the response variability than instants of the maximal response peaks. With two areas in the ventral visual pathway, we show that the variability in response latency across brain areas can be used to infer the sequence of cortical activity. en
dc.format.extent 1-11
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Scientific Reports en
dc.relation.ispartofseries Volume 8, issue 1 en
dc.rights openAccess en
dc.subject.other General en
dc.subject.other 3112 Neurosciences en
dc.title The sequence of cortical activity inferred by response latency variability in the human ventral pathway of face processing en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department National Taiwan University
dc.contributor.department Universidad Nacional Autonoma de Mexico
dc.contributor.department Department of Neuroscience and Biomedical Engineering
dc.subject.keyword General
dc.subject.keyword 3112 Neurosciences
dc.identifier.urn URN:NBN:fi:aalto-201805222283
dc.identifier.doi 10.1038/s41598-018-23942-x
dc.type.version publishedVersion


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