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Related Experiment Video

Updated: Jun 9, 2026

Creating Objects and Object Categories for Studying Perception and Perceptual Learning
14:38

Creating Objects and Object Categories for Studying Perception and Perceptual Learning

Published on: November 2, 2012

Missing the forest for the trees: object-discrimination learning blocks categorization learning.

Fabian A Soto1, Edward A Wasserman

  • 1Department of Psychology, University of Iowa, Iowa City, IA 52242, USA. fabian-soto@uiowa.edu

Psychological Science
|September 7, 2010
PubMed
Summary
This summary is machine-generated.

Error-driven associative learning aids image categorization in animals. This study found that pretraining on object discrimination in humans reduced error-driven category learning, suggesting prior learning can block new category acquisition.

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Published on: April 19, 2017

Area of Science:

  • Cognitive psychology
  • Animal cognition
  • Perceptual learning

Background:

  • Error-driven associative learning is crucial for nonhuman animals categorizing natural images.
  • The role of this learning mechanism in human object categorization remains less understood.

Purpose of the Study:

  • To investigate if error-driven associative learning influences human categorization of natural objects in photographs.
  • To examine how prior discrimination learning affects subsequent category learning.

Main Methods:

  • Two groups of college students (blocking and control) underwent a categorization task.
  • The blocking group received pretraining on non-categorical object discrimination.
  • Both groups were tested on novel photographs from each category.

Main Results:

  • The blocking group showed strong initial performance in the categorization task due to pretraining.
  • This initial performance reduced the impact of error-driven learning.
  • The blocking group exhibited less transfer of categorical responding compared to the control group.

Conclusions:

  • Prior non-categorical discrimination learning can impede subsequent open-ended category learning in humans.
  • Specific image property learning in pretraining can block broader category acquisition.
  • This suggests a potential mechanism by which early learning experiences shape later categorization abilities.