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    Functional lateralization of temporoparietal junction: imitation inhibition, visual perspective taking and theory of mind

    Santiesteban, Idalmis and Banissy, M.J. and Catmur, C. and Bird, G. (2015) Functional lateralization of temporoparietal junction: imitation inhibition, visual perspective taking and theory of mind. European Journal of Neuroscience , n/a-n/a. ISSN 0953-816X.

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    Abstract

    Although neuroimaging studies have consistently identified the temporoparietal junction (TPJ) as a key brain region involved in social cognition, the literature is far from consistent with respect to lateralization of function. For example, bilateral TPJ activation is found during theory of mind tasks in some studies, but only right hemisphere activation in others. Visual perspective taking and imitation inhibition, which have been argued to recruit the same socio-cognitive processes as theory of mind, are associated with unilateral activation of either left TPJ (perspective taking), or right TPJ (imitation inhibition). The present study investigated the functional lateralization of TPJ involvement in the above three socio-cognitive abilities using transcranial direct current stimulation. Three groups of healthy adults received anodal stimulation over right TPJ, left TPJ or the occipital cortex prior to performing three tasks (imitation inhibition, visual perspective taking and theory of mind). In contrast to the extant neuroimaging literature, our results suggest bilateral TPJ involvement in imitation inhibition and visual perspective taking, while no effect of anodal stimulation was observed on theory of mind. The discrepancy between these findings and those obtained using neuroimaging highlight the efficacy of neurostimulation as a complementary methodological tool in cognitive neuroscience.

    Metadata

    Item Type: Article
    Keyword(s) / Subject(s): bilateral TPJ, tDCS, social cognition, self-other representations
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Psychological Sciences
    Depositing User: Administrator
    Date Deposited: 04 Aug 2015 12:58
    Last Modified: 02 Aug 2023 17:18
    URI: https://eprints.bbk.ac.uk/id/eprint/12670

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