Communicative interactions in point-light displays: Choosing among multiple response alternatives.
Vision scientists are increasingly relying on the point-light technique as a way to investigate the perception of human motion. Unfortunately, the lack of standardized stimulus sets has so far limited the use of this technique for studying social interaction. Here, we describe a new tool to study the interaction between two agents starting from point-light displays: the Communicative Interaction Database - 5AFC format (CID-5). The CID-5 consists of 14 communicative and seven non-communicative individual actions performed by two agents. Stimuli were constructed by combining motion capture techniques and 3-D animation software to provide precise control over the computer-generated actions. For each action stimulus, we provide coordinate files and movie files depicting the action as seen from four different perspectives. Furthermore, the archive contains a text file with a list of five alternative action descriptions to construct forced-choice paradigms. In order to validate the CID-5 format, we provide normative data collected to assess action identification within a 5AFC tasks. The CID-5 archive is freely downloadable from http://bsb-lab.org/research/ and from the supplementary materials of this article.
CoBTek Laboratory, University of Nice Sophia Antipolis, Nice, France.
Valeria
V
Manera
Department of Psychiatry and Psychotherapy, Heinrich-Heine-University of Düsseldorf, Rhineland State Clinics Düsseldorf, Düsseldorf, Germany.
Tabea
T
von der Lühe
Max Planck Institute of Psychiatry, Munich, Germany.|Department of Psychiatry, University Hospital Cologne, Cologne, Germany.
Leonhard
L
Schilbach
Laboratory of Experimental Psychology, KU Leuven, Leuven, Belgium.
Karl
K
Verfaillie
Department of Robotics, Brain and Cognitive Sciences, Fondazione Istituto Italiano di Tecnologia, Genova, Italy. cristina.becchio@unito.it.|Department of Psychology, University of Turin, Via Po 14, 10123, Turin, Italy. cristina.becchio@unito.it.
Cristina
C
Becchio
D000328:Adult; D002755:Choice Behavior; D003142:Communication; D016208:Databases, Factual / Q000592:standards*; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008027:Light; D008297:Male; D008875:Middle Aged; D009039:Motion Perception; D010775:Photic Stimulation / Q000379:methods*; D012984:Software; D014787:Vision Tests / Q000379:methods* / Q000592:standards*; D055815:Young Adult
5AFC; Biological motion; Communicative interaction; Database; Point-light