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Related Concept Videos

Factors Affecting Perception01:25

Factors Affecting Perception

Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
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Gestalt Principles of Perception01:21

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Related Experiment Video

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Methods to Explore the Influence of Top-down Visual Processes on Motor Behavior
09:49

Methods to Explore the Influence of Top-down Visual Processes on Motor Behavior

Published on: April 16, 2014

How action influences object perception.

David Chan1, Mary A Peterson, Morgan D Barense

  • 1Department of Psychology, University of Toronto Toronto, ON, Canada.

Frontiers in Psychology
|July 26, 2013
PubMed
Summary
This summary is machine-generated.

Fast object perception relies on the magnocellular (M) pathway, not just the parvocellular (P) pathway. Priming action, through hand posture and object graspability, enhances this M-pathway-driven visual perception.

Keywords:
action perceptionhand-altered visionmagnocellular pathwaynear-hand visionobject perceptionvisual pathways

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Last Updated: May 9, 2026

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Area of Science:

  • Neuroscience
  • Visual Perception
  • Cognitive Psychology

Background:

  • Object perception is traditionally linked to the parvocellular (P) pathway.
  • Rapid "gist" object perception may involve the magnocellular (M) pathway.
  • The M-pathway is primarily associated with action processing.

Purpose of the Study:

  • To investigate if manipulating action influences speeded object perception.
  • To determine the role of the magnocellular (M) pathway in fast "gist" object perception.
  • To explore how action priming affects the perception of low and high spatial frequency (LSF/HSF) images.

Main Methods:

  • Three experiments tested participants' ability to identify object size from LSF and HSF images.
  • Action was primed using proximal vs. distal hand postures, palm orientation (in vs. out), and object graspability.
  • Participants responded to whether objects were larger or smaller than a shoebox.

Main Results:

  • The advantage in identifying LSF images was consistently greater when action was primed.
  • Proximal hand posture, palms-in orientation, and graspable stimuli enhanced LSF image identification.
  • These findings indicate that action priming strengthens M-pathway contributions to object perception.

Conclusions:

  • The magnocellular (M) pathway plays a significant role in rapid "gist" object perception.
  • Action priming, through various means, enhances M-pathway-mediated visual perception.
  • This research links action processing directly to the speed and efficiency of object recognition.