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Related Experiment Video

Updated: Apr 16, 2026

Creating Objects and Object Categories for Studying Perception and Perceptual Learning
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Representing visual recursion does not require verbal or motor resources.

Maurício de Jesus Dias Martins1, Zarja Muršič2, Jinook Oh2

  • 1Department of Cognitive Biology, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria; Berlin School of Mind and Brain, Humboldt Universität zu Berlin, Luisenstrasse 56, 10117 Berlin, Germany; Max Plank Institute for Human Cognitive and Brain Sciences, Stephanstrasse 1a, 04103 Leipzig, Germany; Language Research Laboratory, Lisbon Faculty of Medicine, Av. Professor Egas Moniz, 1649-028 Lisbon, Portugal.

Cognitive Psychology
|March 7, 2015
PubMed
Summary
This summary is machine-generated.

Recursion in visual tasks does not require language abilities. This study found that verbal and motor interference did not impact the ability to process visual recursion, suggesting recursion is independent of language.

Keywords:
FractalsHierarchyLanguageRecursionSelf-embedding

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Area of Science:

  • Cognitive Science
  • Neuroscience
  • Psycholinguistics

Background:

  • Recursive representation is crucial for processing hierarchical structures.
  • It has been hypothesized that language abilities underpin recursive representation.
  • This suggests linguistic resources are activated during non-linguistic recursive tasks.

Purpose of the Study:

  • To investigate whether verbal resources are necessary for visual recursion tasks.
  • To assess the impact of verbal and motor interference on visual recursion processing.

Main Methods:

  • A dual-task paradigm was employed.
  • Participants performed a visual recursion task under four conditions: no interference, motor interference (finger tapping), low-load verbal interference, and high-load verbal interference.

Main Results:

  • The ability to acquire and use visual recursive representations was unaffected by verbal interference.
  • Motor interference also did not impact visual recursion processing.
  • Performance on the visual recursion task remained consistent across all interference conditions.

Conclusions:

  • Visual recursion can be represented independently of language processing abilities.
  • The findings challenge the hypothesis that language is essential for recursive representation in non-linguistic domains.
  • Recursion may be a more fundamental cognitive ability than previously assumed.