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Constricted semantic relations in acute depression.

Eiran Vadim Harel1, Einat Shetreet2, Robert Tennyson3

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|May 21, 2022
PubMed
Summary
This summary is machine-generated.

Depression impairs semantic priming, affecting how people retrieve information. This study found depressed individuals showed reduced priming effects for weak associations, unlike neurotypicals, suggesting cognitive differences in depression.

Keywords:
Automatic and controlled processesMood disordersPriming effectWord associations

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Area of Science:

  • Cognitive Psychology
  • Clinical Psychology
  • Neuroscience

Background:

  • Mood is theorized to influence the scope of information retrieval, with positive moods broadening and negative moods constricting associations.
  • This study investigates if the mood-association link relates to controlled cognitive processes, which are implicated in depression.

Purpose of the Study:

  • To examine the relationship between mood, controlled cognitive processes, and semantic associations in individuals with and without depression.
  • To investigate how the strength of semantic relations (weak vs. strong) affects priming effects in neurotypical and depressed individuals.

Main Methods:

  • Utilized the semantic priming paradigm with varying prime-target intervals (short and long) to differentiate automatic and controlled cognitive processes.
  • Assessed priming effects for both weakly and strongly related word pairs in neurotypical and depressed participants.

Main Results:

  • Neurotypical individuals showed priming for strongly related words irrespective of interval length, and for weakly related words at longer intervals.
  • Depressed individuals exhibited diminished priming effects for weakly related words compared to neurotypicals, particularly at longer intervals. Priming for strongly related words was comparable between groups.

Conclusions:

  • This research provides the first evidence of priming impairments in individuals with depression.
  • Findings suggest that depression impacts controlled cognitive processes involved in semantic association, contributing to cognitive deficits observed in the disorder.