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dc.contributor.authorPeterson, Matthew F
dc.contributor.authorZaun, Ian E.
dc.contributor.authorHoke, Harris
dc.contributor.authorJiahui, Guo
dc.contributor.authorDuchaine, Brad
dc.contributor.authorKanwisher, Nancy
dc.date.accessioned2019-11-14T18:09:51Z
dc.date.available2019-11-14T18:09:51Z
dc.date.issued2019-08
dc.identifier.issn1534-7362
dc.identifier.urihttps://hdl.handle.net/1721.1/122934
dc.description.abstractDespite extensive investigation, the causes and nature of developmental prosopagnosia (DP)-a severe face identification impairment in the absence of acquired brain injury-remain poorly understood. Drawing on previous work showing that individuals identified as being neurotypical (NT) show robust individual differences in where they fixate on faces, and recognize faces best when the faces are presented at this location, we defined and tested four novel hypotheses for how atypical face-looking behavior and/or retinotopic face encoding could impair face recognition in DP: (a) fixating regions of poor information, (b) inconsistent saccadic targeting, (c) weak retinotopic tuning, and (d) fixating locations not matched to the individual's own face tuning. We found no support for the first three hypotheses, with NTs and DPs consistently fixating similar locations and showing similar retinotopic tuning of their face perception performance. However, in testing the fourth hypothesis, we found preliminary evidence for two distinct phenotypes of DP: (a) Subjects characterized by impaired face memory, typical face perception, and a preference to look high on the face, and (b) Subjects characterized by profound impairments to both face memory and perception and a preference to look very low on the face. Further, while all NTs and upper-looking DPs performed best when faces were presented near their preferred fixation location, this was not true for lower-looking DPs. These results suggest that face recognition deficits in a substantial proportion of people with DP may arise not from aberrant face gaze or compromised retinotopic tuning, but from the suboptimal matching of gaze to tuning.en_US
dc.description.sponsorshipNational Science Foundation (U.S.). (1231216)en_US
dc.language.isoen
dc.publisherAssociation for Research in Vision and Ophthalmology (ARVO)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1167/19.9.7en_US
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivs Licenseen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.sourceJournal of Visualized Experiments (JOVE)en_US
dc.titleEye movements and retinotopic tuning in developmental prosopagnosiaen_US
dc.typeArticleen_US
dc.identifier.citationPeterson, Matthew F. et al. "Eye movements and retinotopic tuning in developmental prosopagnosia." Journal of Vision 19, 9 (August 2019):1-19 © 2019 The Authorsen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Brain and Cognitive Sciencesen_US
dc.relation.journalJournal of Visionen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2019-10-02T17:08:05Z
dspace.date.submission2019-10-02T17:08:07Z
mit.journal.volume19en_US
mit.journal.issue9en_US


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