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Related Experiment Video

Updated: Jan 19, 2026

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues
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Action Fluency Facilitates Perceptual Discrimination.

Jianfei Guo1, Joo-Hyun Song1,2

  • 1Department of Cognitive, Linguistic & Psychological Sciences, Brown University.

Psychological Science
|September 11, 2019
PubMed
Summary
This summary is machine-generated.

Action fluency enhances visual perception sensitivity. Training actions improved orientation discrimination, showing a reciprocal link between perception and action in daily life.

Keywords:
actionaction fluencyaction trainingopen dataperceptionperceptual sensitivitypreregistered

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Area of Science:

  • Cognitive Neuroscience
  • Visual Perception
  • Motor Control

Background:

  • Perception and action are deeply intertwined in daily activities.
  • Existing research shows perception influences action and action-related factors affect perception.
  • The impact of action fluency on early visual perceptual sensitivity remains unexplored.

Purpose of the Study:

  • To investigate how action fluency affects visual perceptual sensitivity, specifically orientation detection.
  • To determine if improved action fluency leads to enhanced perceptual performance.
  • To explore the reciprocal relationship between action and perception.

Main Methods:

  • A dual-task paradigm was employed, combining action preparation (grasping) with a visual task (orientation-change detection).
  • Grasping errors were monitored to quantify action fluency.
  • Participants underwent grasping training before the perceptual task to assess training effects.

Main Results:

  • Increased action fluency correlated with improved perceptual discrimination performance.
  • Grasping training significantly enhanced subsequent visual perceptual sensitivity.
  • Evidence supports a reciprocal influence between action and perception.

Conclusions:

  • Action fluency plays a crucial role in modulating early visual perceptual sensitivity.
  • Improving action execution can directly benefit perceptual abilities.
  • This study highlights a dynamic, bidirectional relationship between perception and action systems.