Scientific article
Open access

The Body Action and Posture Coding System (BAP): Development and Reliability

Published inJournal of Nonverbal Behavior, vol. 36, no. 2, p. 97-121
Publication date2012

Several methods are available for coding body movement in nonverbal behavior research, but there is no consensus on a reliable coding system that can be used for the study of emotion expression. Adopting an integrative approach, we developed a new method, the body action and posture coding system, for the time-aligned micro description of body movement on an anatomical level (different articulations of body parts), a form level (direction and orientation of movement), and a functional level (communicative and self-regulatory functions). We applied the system to a new corpus of acted emotion portrayals, examined its comprehensiveness and demonstrated intercoder reliability at three levels: (a) occurrence, (b) temporal precision, and (c) segmentation. We discuss issues for further validation and propose some research applications.

  • Body movement
  • Expression
  • Coding
  • Method
  • Emotion
Research group
Citation (ISO format)
DAEL, Nele, MORTILLARO, Marcello, SCHERER, Klaus R. The Body Action and Posture Coding System (BAP): Development and Reliability. In: Journal of Nonverbal Behavior, 2012, vol. 36, n° 2, p. 97–121. doi: 10.1007/s10919-012-0130-0
Main files (1)
Article (Published version)
ISSN of the journal0191-5886

Technical informations

Creation08/31/2017 10:30:00 AM
First validation08/31/2017 10:30:00 AM
Update time03/15/2023 1:58:09 AM
Status update03/15/2023 1:58:08 AM
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