Spontaneous Gestures Influence Strategy Choices in Problem Solving

@article{Alibali2011SpontaneousGI,
  title={Spontaneous Gestures Influence Strategy Choices in Problem Solving},
  author={Martha W. Alibali and Robert C. Spencer and Lucy Knox and Sotaro Kita},
  journal={Psychological Science},
  year={2011},
  volume={22},
  pages={1138 - 1144}
}
Do gestures merely reflect problem-solving processes, or do they play a functional role in problem solving? We hypothesized that gestures highlight and structure perceptual-motor information, and thereby make such information more likely to be used in problem solving. Participants in two experiments solved problems requiring the prediction of gear movement, either with gesture allowed or with gesture prohibited. Such problems can be correctly solved using either a perceptual-motor strategy… 

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