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Published on: October 19, 2014
Emotions in motion: How fear and anger differently influence forward single-step initiation.
Laure Coudrat1,2, Stéphanie Caharel3, Jean-Luc Kop4
1Univ Toulon, J-AP2S, CS60584, Campus de la Garde, Toulon, 83041 Cedex 9, France. laure.coudrat@univ-tln.fr.
Perceiving emotional faces influences forward stepping. Fearful and happy faces elicit stronger motor responses than angry faces, suggesting emotional cues prime approach movements.
Area of Science:
- Psychology
- Neuroscience
- Human Motor Control
Background:
- Emotional face perception significantly impacts human motor responses.
- Previous research on fear and approach movement is limited by ambiguous actions and pre-action emotion identification.
Purpose of the Study:
- To investigate the influence of emotional faces (fearful, angry, happy) on unambiguous forward stepping.
- To differentiate the effects of task-relevant versus incidental emotional information on motor initiation.
Main Methods:
- Utilized a go/no-go paradigm with forward single-step initiation.
- Compared responses to emotional versus neutral faces and across different emotional expressions.
- Implemented neutral-versus-emotional and face-gender conditions to assess task relevance.
Main Results:
- Emotional faces modulated forward stepping only when task-relevant (neutral-versus-emotional condition).
- Stronger motor responses (postural adjustments) were observed for fearful and happy faces compared to angry faces.
- Faster forward velocity peak initiation occurred for fearful faces relative to angry faces.
Conclusions:
- Emotional facial expressions, particularly fear, can facilitate approach-related motor preparation.
- The task relevance of emotional information is crucial for its impact on motor responses.
- Findings suggest a link between emotional perception, motor control, and action preparation.
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