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Poster
A Reduced-Dimension fMRI Shared Response Model
Cameron Po-Hsuan Chen · Janice Chen · Yaara Yeshurun · Uri Hasson · James Haxby · Peter J Ramadge

Wed Dec 09 04:00 PM -- 08:59 PM (PST) @ 210 C #23 #None

Multi-subject fMRI data is critical for evaluating the generality and validity of findings across subjects, and its effective utilization helps improve analysis sensitivity. We develop a shared response model for aggregating multi-subject fMRI data that accounts for different functional topographies among anatomically aligned datasets. Our model demonstrates improved sensitivity in identifying a shared response for a variety of datasets and anatomical brain regions of interest. Furthermore, by removing the identified shared response, it allows improved detection of group differences. The ability to identify what is shared and what is not shared opens the model to a wide range of multi-subject fMRI studies.

Author Information

Cameron Po-Hsuan Chen (Princeton)
Janice Chen
Yaara Yeshurun
Uri Hasson (Princeton University)
James Haxby
Peter J Ramadge (Princeton)

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