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Cited by 269

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Idiosynchrony: From shared responses to individual differences during naturalistic neuroimaging

Open access
Finn, Emily S., Glerean, Enrico, Khojandi, Arman Y., Nielson, Dylan, Molfese, Peter J., Handwerker, Daniel A., Bandettini, Peter A.·2020·NeuroImage

Abstract

Two ongoing movements in human cognitive neuroscience have researchers shifting focus from group-level inferences to characterizing single subjects, and complementing tightly controlled tasks with rich, dynamic paradigms such as movies and stories. Yet relatively little work combines these two, perhaps because traditional analysis approaches for naturalistic imaging data are geared toward detecting shared responses rather than between-subject variability. Here, we review recent work using naturalistic stimuli to study individual differences, and advance a framework for detecting structure in idiosyncratic patterns of brain activity, or "idiosynchrony". Specifically, we outline the emerging technique of inter-subject representational similarity analysis (IS-RSA), including its theoretical motivation and an empirical demonstration of how it recovers brain-behavior relationships during movie watching using data from the Human Connectome Project. We also consider how stimulus choice may affect the individual signal and discuss areas for future research. We argue that naturalistic neuroimaging paradigms have the potential to reveal meaningful individual differences above and beyond those observed during traditional tasks or at rest.

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Metadata

Authors
Finn, E. S., Glerean, E., Khojandi, A. Y., Nielson, D., Molfese, P. J., Handwerker, D. A., & Bandettini, P. A.
Venue
NeuroImage
Publisher
Elsevier BV
Published
2020-07
Volume
215
Pages
116828
ISSN
1053-8119 (ISSN-L)
OpenAlex
W3015354840
Cited by
269
References
89
FWCI
18.15
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Idiosynchrony: From shared responses to individual differences during naturalistic neuroimaging. https://app.cochat.ai/papers/10.1016/j.neuroimage.2020.116828
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Finn, E. S., Glerean, E., Khojandi, A. Y., Nielson, D., Molfese, P. J., Handwerker, D. A., & Bandettini, P. A. (2020). Idiosynchrony: From shared responses to individual differences during naturalistic neuroimaging. NeuroImage. https://doi.org/10.1016/j.neuroimage.2020.116828

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