Universität zu Köln

Investigating the Dynamics of Nonverbal Communication: Evidence from Neuroimaging in High-Functioning Autism and Typical Development

Georgescu, Alexandra Livia (2013) Investigating the Dynamics of Nonverbal Communication: Evidence from Neuroimaging in High-Functioning Autism and Typical Development. PhD thesis, Universität zu Köln.

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    Abstract

    Being able to accurately decode nonverbal behaviors is essential for human communication. However, meaningful information is not only conveyed by static cues, which have already been extensively investigated in the past, but also by subtle movement dynamics. Investigating such subtle movement dynamics opens up new avenues for the investigation of social cognition in healthy and psychopathological contexts. Thus, this thesis investigated the correlates of perceiving and processing dynamic nonverbal social cues in the human brain using fMRI along with behavioral methods. First, we demonstrate the utility and validity of several digital simulation paradigms for nonverbal behavior research in a neuroimaging context. Further, we show for the first time that the observation of nonverbal communicative interactions is modulated by different spatiotemporal factors of perceived movement and that this is associated with both the AON and the SNN. In addition, we contribute to an ongoing debate by showing that in the context of the observation of complex human interactions, there is no biological bias of the AON. Furthermore, we demonstrate for the first time the domain-specificity of the two neural networks AON and SNN in the context of observing complex human interactions. Finally, we demonstrate that HFA is associated with deficits in social processing more so than social perception, but that social perception may rely on other cognitive strategies compared to typically developing individuals.

    Item Type: Thesis (PhD thesis)
    Creators:
    CreatorsEmail
    Georgescu, Alexandra Liviaalexandra.georgescu@uk-koeln.de
    URN: urn:nbn:de:hbz:38-54822
    Subjects: Psychology
    Uncontrolled Keywords:
    KeywordsLanguage
    fMRI, high-functioning autism, virtual characters, nonverbal behavior, kinesics, eye gaze, animacy, social interactionEnglish
    Faculty: Humanwissenschaftliche Fakultät
    Divisions: Humanwissenschaftliche Fakultät > Department Psychologie
    Language: English
    Date: 11 November 2013
    Date Type: Publication
    Date of oral exam: 19 December 2013
    Full Text Status: Public
    Date Deposited: 19 Feb 2014 14:42:00
    Referee
    NameAcademic Title
    Bente, GaryProf. Dr.
    Vogeley, KaiProf. Dr. Dr.
    URI: http://kups.ub.uni-koeln.de/id/eprint/5482

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