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Related Experiment Videos

Do conversational hand gestures communicate?

R M Krauss1, P Morrel-Samuels, C Colasante

  • 1Department of Psychology, Columbia University, New York, New York 10027.

Journal of Personality and Social Psychology
|November 1, 1991
PubMed
Summary
This summary is machine-generated.

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Gestures convey limited information, often redundant with speech. Studies show human understanding of gestures is significantly less effective than understanding spoken or written words.

Area of Science:

  • Cognitive Psychology
  • Linguistics
  • Nonverbal Communication

Background:

  • Gestures are a common form of human communication.
  • The extent to which gestures convey information independently of speech is not fully understood.

Purpose of the Study:

  • To investigate the information content of gestures.
  • To compare the effectiveness of gestures versus words in conveying meaning.
  • To determine if gesture meaning is primarily derived from form or accompanying speech.

Main Methods:

  • Five experiments were conducted with undergraduate participants.
  • Tasks included matching gestures to words, interpreting gesture meanings, recognizing gestures with/without speech, and categorizing gestures and speech.
  • Performance was measured against chance and compared to word-based stimuli.

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Main Results:

  • Participants performed better than chance on all gesture-related tasks.
  • Performance with gestures was markedly inferior to performance with words.
  • Semantic categorization of gestures was primarily influenced by accompanying speech, not gestural form.

Conclusions:

  • Gestures convey some information, but are not richly informative.
  • The information conveyed by gestures is largely redundant with spoken language.
  • Speech plays a dominant role in determining the semantic interpretation of gestures.