BIROn - Birkbeck Institutional Research Online

    Eye contact modulates facial mimicry in 4-month-old infants: an EMG and fNIRS study

    de Klerk, Carina C.J.M. and Hamilton, A.F. de C. and Southgate, Victoria (2018) Eye contact modulates facial mimicry in 4-month-old infants: an EMG and fNIRS study. Cortex 106 , pp. 93-103. ISSN 0010-9452.

    [img]
    Preview
    Text
    22853.pdf - Published Version of Record
    Available under License Creative Commons Attribution.

    Download (1MB) | Preview

    Abstract

    Mimicry, the tendency to spontaneously and unconsciously copy others' behaviour, plays an important role in social interactions. It facilitates rapport between strangers, and is flexibly modulated by social signals, such as eye contact. However, little is known about the development of this phenomenon in infancy, and it is unknown whether mimicry is modulated by social signals from early in life. Here we addressed this question by presenting 4-month-old infants with videos of models performing facial actions (e.g., mouth opening, eyebrow raising) and hand actions (e.g., hand opening and closing, finger actions) accompanied by direct or averted gaze, while we measured their facial and hand muscle responses using electromyography to obtain an index of mimicry (Experiment 1). In Experiment 2 the infants observed the same stimuli while we used functional near-infrared spectroscopy to investigate the brain regions involved in modulating mimicry by eye contact. We found that 4-month-olds only showed evidence of mimicry when they observed facial actions accompanied by direct gaze. Experiment 2 suggests that this selective facial mimicry may have been associated with activation over posterior superior temporal sulcus. These findings provide the first demonstration of modulation of mimicry by social signals in young human infants, and suggest that mimicry plays an important role in social interactions from early in life. [Abstract copyright: Copyright © 2018 The Author(s). Published by Elsevier Ltd.. All rights reserved.]

    Metadata

    Item Type: Article
    Keyword(s) / Subject(s): EMG, Eye contact, Facial mimicry, Imitation, Infancy, fNIRS
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Psychological Sciences
    Research Centres and Institutes: Brain and Cognitive Development, Centre for (CBCD)
    SWORD Depositor: Mr Joe Tenant
    Depositing User: Mr Joe Tenant
    Date Deposited: 25 Jun 2018 12:55
    Last Modified: 02 Aug 2023 17:42
    URI: https://eprints.bbk.ac.uk/id/eprint/22853

    Statistics

    Activity Overview
    6 month trend
    271Downloads
    6 month trend
    170Hits

    Additional statistics are available via IRStats2.

    Archive Staff Only (login required)

    Edit/View Item Edit/View Item