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    Beyond the FFA: Understanding Face Representation within the Anterior Temporal Lobes

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    TETDEDXCollins-temple-0225E-11 ...
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    Genre
    Thesis/Dissertation
    Date
    2014
    Author
    Collins, Jessica Ann
    Advisor
    Olson, Ingrid R.
    Committee member
    Chein, Jason M.
    Giovannetti, Tania
    Reilly, Jamie
    Marshall, Peter J.
    Newcombe, Nora
    Department
    Psychology
    Subject
    Neurosciences
    Anterior Temporal Lobes
    Fmri
    Semantic Memory
    Social Cognition
    Permanent link to this record
    http://hdl.handle.net/20.500.12613/2709
    
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    DOI
    http://dx.doi.org/10.34944/dspace/2691
    Abstract
    Extensive research has supported the existence of a specialized face-processing network that is distinct from the visual processing areas used for general object recognition. The majority of this work has been aimed at characterizing the response properties of the fusiform face area (FFA) and the occipital face area (OFA), which together are thought to constitute the core network of brain areas responsible for facial identification. Although accruing evidence has shown that face-selective patches in the ventral anterior temporal lobes (vATLs), within perirhinal cortex, play a necessary role in facial identification, the relative contribution of these brain areas to the core face-processing network has remained unarticulated. The current study assessed the relative sensitivity of the anterior face patch, the OFA, and the FFA, to different aspects of person information. Participants learned to associate a name and occupation label, or a name only, with different facial identities. The sensitivity of the face processing areas to facial identity, occupation, and the amount of information associated with a face was then assessed. The results of a multivoxel pattern analysis (MVPA) revealed that distributed activity patterns in the anterior face patch contained information about facial identity, occupation, and the amount of information associated with a face, with the sensitivity of the anterior face patch to occupation and amount of information being greater than the more posterior face processing regions. When a similar analysis was conducted that included all voxels in the perirhinal cortex, sensitivity to every aspect of person information increased. These results suggest that the human ventral anterior temporal lobes may be critically involved in representing social, categorical, information about individual identities.
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