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Emotion and motor control: movement attributes following affective picture processing.
Stephen A Coombes1, Chrstopher M Janelle, Aaron R Duley
1Department of Applied Physiology and Kinesiology, University of Florida, P.O. Box 118207, 100 FLG, Gainesville, FL 32611, USA. scoombes@hhp.ufl.edu
Journal of Motor Behavior
|November 11, 2005
Summary
Exposure to unpleasant images can impair motor task accuracy but increase speed, depending on the duration of exposure. This research highlights how emotional stimuli affect cognitive performance.
Area of Science:
- Cognitive Psychology
- Affective Science
- Human Performance
Background:
- Emotional stimuli significantly influence human cognition and behavior.
- Understanding the impact of affective valence and arousal on motor skills is crucial for various applications.
- Previous research suggests emotional states can alter performance, but exposure duration effects are less understood.
Purpose of the Study:
- To investigate how exposure to pleasant, unpleasant, and neutral affective pictures influences the speed and accuracy of a square-tracing task.
- To examine the role of exposure duration (short vs. extended) in mediating the effects of emotional stimuli on motor performance.
- To correlate behavioral findings with self-report and physiological measures of affect.
Main Methods:
- Participants (N=40) performed a square-tracing task after viewing sequences of pleasant, unpleasant, or neutral images.
- Two experiments varied the exposure protocol: Experiment 1 used 4 consecutive images, while Experiment 2 used single-slide trials.
- Performance metrics included speed and accuracy; affective states were measured via self-report and physiological indicators.
Main Results:
- In Experiment 1 (short exposure), unpleasant images led to greater tracing errors compared to pleasant images.
- In Experiment 2 (multiple exposures), performance speed increased following unpleasant stimuli relative to pleasant stimuli.
- Affective valence and arousal measures generally supported previous findings, corroborating the behavioral outcomes.
Conclusions:
- The duration of exposure to affective stimuli critically mediates both the speed and accuracy of motor performance.
- Unpleasant stimuli can either increase errors (short exposure) or enhance speed (extended exposure) in motor tasks.
- Affective pictures have direct and differential behavioral consequences based on exposure length, with implications for understanding emotion-cognition interactions.