The quick and the dead: When reaction beats intention

Andrew E. Welchman, James Stanley, Malte R. Schomers, R. Chris Miall, Heinrich Bulthoff

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Everyday behaviour involves a trade-off between planned actions and reaction to environmental events. Evidence from neurophysiology, neurology and functional brain imaging suggests different neural bases for the control of different movement types. Here we develop a behavioural paradigm to test movement dynamics for intentional versus reaction movements and provide evidence for a 'reactive advantage' in movement execution, whereby the same action is executed faster in reaction to an opponent. We placed pairs of participants in competition with each other to make a series of button presses. Withinsubject analysis of movement times revealed a 10 per cent benefit for reactive actions. This was maintained when opponents performed dissimilar actions, and when participants competed against a computer, suggesting that the effect is not related to facilitation produced by action observation. Rather, faster ballistic movements may be a general property of reactive motor control, potentially providing a useful means of promoting survival.

Original languageEnglish
Pages (from-to)1667-1674
Number of pages8
JournalProceedings of the Royal Society B: Biological Sciences
Volume277
Issue number1688
DOIs
Publication statusPublished - 2010 Jun 7

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Keywords

  • Action observation
  • Interpersonal competition
  • Movement control

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Environmental Science(all)
  • Immunology and Microbiology(all)
  • Medicine(all)

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