Does the intention to communicate affect action kinematics?

Conscious Cogn. 2009 Sep;18(3):766-72. doi: 10.1016/j.concog.2009.06.004. Epub 2009 Jul 24.

Abstract

The aim of the present study was to investigate the effects of communicative intention on action. In Experiment 1 participants were requested to reach towards an object, grasp it, and either simply lift it (individual condition) or lift it with the intent to communicate a meaning to a partner (communicative condition). Movement kinematics were recorded using a three-dimensional motion analysis system. The results indicate that kinematics was sensitive to communicative intention. Although the to-be-grasped object remained the same, movements performed for the 'communicative' condition were characterized by a kinematic pattern which differed from those obtained for the 'individual' condition. These findings were confirmed in a subsequent experiment in which the communicative condition was compared to a control condition, in which the communicative exchange was prevented. Results are discussed in terms of cognitive pragmatics and current knowledge on how social behavior shapes action kinematics.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Awareness
  • Biomechanical Phenomena*
  • Female
  • Hand Strength
  • Humans
  • Intention*
  • Interpersonal Relations
  • Lifting
  • Male
  • Nonverbal Communication*
  • Psychomotor Performance
  • Young Adult