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. 2018 Dec 3;9:1029. doi: 10.3389/fneur.2018.01029

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Copyright © 2018 Wang, Baird, Huang, Coutinho, Brien and Munoz.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Task-evoked responses after face presentation. (A) Change in pupil size following the presentation of face stimuli in different valence conditions (N = 22). (B) Heart rate change after face presentation in different valence conditions (N = 22). (C) Change in GSR after face presentation in different valence conditions (N = 10). In (B), the bold-circle represents the mean value across participants. The error-bar represents ± standard error across participants. The colored small-circle represents mean value for each participant. HR, heart rate; GSR, galvanic skin response; n, number of participants.