Speaker Gaze and Trust

The data and supplementary materials presented here form the basis of our paper <b>"Direct Speaker Gaze Promotes Trust in Truth-Ambiguous Statements" (<i>H. Kreysa, L. Kessler, &amp; S.R. Schweinberger, 2016, </i></b><b><i><i>PLoS ONE, 11(9), </i>e0162291. doi:10.1371/journal.pone.0162291.</i>).<br></b><br>As described in the paper (downloadable here), 35 student participants indicated by button press whether or not they believed a truth-ambiguous statement, uttered by a speaker in one of 36 short video clips. Importantly, the speaker sometimes looked directly into the camera, at other times she averted her gaze.<b><br><br>1. Data<br>We present four datasets as tab-delimited text:<br><br>1.1. Gaze_RESPrts.txt </b>(responses and RTs for main experiment), with the following variables:<br>- SubjectCode (N = 35)<br>- Video (.avi)<br>- Item (N = 36)<br>- RT from response screen in ms<br>- Response (yes/no)<br>- Orientation (direct gaze / averted right / averted left)<br>- debrief (mention of gaze direction in debrief questionnnaire)<br><b><br>1.2 Audioonly_RESPrts.txt </b>(responses and RTs for control experiment), with the following variables:<br>- SubjectCode (N = 37)<br>- Audio (.wav)<br>- Item (N = 36)<br>- RT from response screen in ms<br>- Response (yes/no)<br>- Orientation_original (direct gaze / averted)<b><br><br>1.3 Gaze_ratings.txt </b>(post-experimental ratings of the speaker's attributes, main experiment), with the following variables:<br>- SubjectCode (N = 35)<br>- Attribute (6 levels)<br>- Rating-recoded (1: lowest - 6: highest)<br>- Response_time<br>- Rating_trial (6 per participant)<br>- Num.yes (number of yes-responses in main experiment per participant, out of 36)<b><br><br>1.4 Gaze_fixations.txt</b> (total fixation time to each AoI during video presentation), with the following variables:<br>- SubjectCode (N = 35)<br>- Video (.avi)<br>- AoI (Area of Interest assigned in SMI BeGaze, see attached example image "AOIs.bmp": eyes, bottomright, bottomleft, topright, topleft, whitespace)<br>- Fixtime (total fixation time per region)<br>Eye movements were recorded using an SMI iViewX Hi-Speed 500 tracker, and fixation events were extracted for each participant using SMI BeGaze (v. 3.4.52).<br><br><b>2. Stimulus examples</b><br>Two videos, one with direct gaze (1_Hund_direct.avi) and one with with averted gaze (mirrored to create right-averted gaze: 1_Hund_right.avi)<br><b><br>3. Further Material</b><br>- <b>AOIs.bmp</b>: image showing assignment of areas of interest on the videos<br>- <b>HK_Poster_gaze&amp;trust_PPRU2015.pdf</b>: poster presented at the XIth Workshop of the Person Perception Research Unit, Jena, Germany (Workshop XI (April, 9-10, 2015): “Human Communication: From Person Perception to Social Action”)<br><br>Please email me if you require any further information ([e-mail]).<br><br>