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Updated: Aug 30, 2025

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Mugs and Plants: Object Semantic Knowledge Alters Perceptual Processing With Behavioral Ramifications.

Dick Dubbelde1, Sarah Shomstein1

  • 1Department of Psychological and Brain Sciences, The George Washington University.

Psychological Science
|August 31, 2022
PubMed
Summary
This summary is machine-generated.

Perceptual tasks reveal differences between manipulable and nonmanipulable objects, linked to how the brain processes visual information. These findings demonstrate how semantic knowledge influences object perception.

Keywords:
object recognitionopen dataopen materialsperceptionsemantic memoryvisionvisual perception

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Area of Science:

  • Cognitive Neuroscience
  • Visual Perception
  • Neuroscience

Background:

  • Neural processing of objects with action associations involves dorsal visual regions.
  • Dorsal and ventral visual pathways differ in magno- and parvocellular input proportions.

Purpose of the Study:

  • To investigate behavioral differences in perceptual tasks between manipulable and nonmanipulable objects.
  • To test if these differences correlate with the magno- and parvocellular pathways.

Main Methods:

  • Five experiments using gap-detection and object-flicker-discrimination tasks with college-age adults.
  • Tasks were chosen based on their suitability for parvocellular (spatial) and magnocellular (temporal) processing.
  • Object recognition was manipulated via inversion, and magnocellular processing was suppressed using red light.

Main Results:

  • A significant nonmanipulable-object advantage was found in the gap-detection task (parvocellular).
  • A small manipulable-object advantage was observed in the flicker-discrimination task (magnocellular).
  • These effects were modulated by object inversion and red light suppression.

Conclusions:

  • Perceptual performance differs between manipulable and nonmanipulable objects.
  • These differences are influenced by the distinct processing characteristics of the dorsal and ventral visual pathways.
  • Semantic knowledge about object manipulation impacts visual perception.