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Negative symptoms of schizophrenia indicate a reduction or absence of typical behaviors and emotional responses found in healthy individuals, while positive symptoms reflect an excess or distortion of normal functioning.
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Schizophrenia is a complex mental health disorder that can manifest with various positive symptoms, including thought, movement, and behavior disorders. These symptoms significantly disrupt cognitive and motor functions, leading to profound effects on an individual's ability to engage with the world.
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Evidence for shallow cognitive maps in schizophrenia.

Ata B Karagoz1, Erin K Moran1, Deanna M Barch1,2

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Schizophrenia (SZ) impairs cognitive map formation, leading to decision-making deficits. This study shows SZ affects how individuals represent task structures, focusing on simpler features over abstract ones.

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Area of Science:

  • Cognitive Neuroscience
  • Psychiatry

Background:

  • Schizophrenia (SZ) is associated with decision-making deficits.
  • Theories debate whether SZ impacts cognitive control or motivation.
  • An alternative hypothesis suggests impaired cognitive map formation in SZ.

Approach:

  • Tested the hypothesis that SZ impairs cognitive map construction.
  • Utilized a sequential decision-making task combined with representational similarity analysis.
  • Examined how choice option relationships change during cognitive map building in SZ and control groups.

Key Points:

  • Individuals with SZ showed altered task structure representation.
  • SZ group focused on simpler visual features, neglecting abstract, planning-relevant ones.
  • Performance was comparable between SZ and control groups, despite representational differences.

Conclusions:

  • Schizophrenia negatively impacts cognitive map formation.
  • Deficits in decision-making may stem from ill-formed cognitive maps, not just control or motivation.
  • Distinguishing cognitive map formation from goal-directed control is crucial for understanding SZ cognitive deficits.