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Related Concept Videos

Positive Symptoms of Schizophrenia: Hallucinations and Delusions01:30

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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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Standardized Data Acquisition for Neuromelanin-Sensitive Magnetic Resonance Imaging of the Substantia Nigra
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Perceiving and attributing intentionality in schizophrenia.

Robyn Langdon1, Kelsie Boulton1, Emily Connaughton1

  • 1Department of Cognitive Science, Macquarie University, Sydney, NSW, Australia.

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|June 12, 2020
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Summary
This summary is machine-generated.

People with schizophrenia have intact perception of intentionality but struggle with attributing it, impacting theory-of-mind (ToM) skills. Referential ideation can also lead to overthinking intentions.

Keywords:
Intentionspsychosisschizophreniasocial cognitiontheory of mind

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Area of Science:

  • Cognitive Neuroscience
  • Psychiatry
  • Social Cognition

Background:

  • Schizophrenia is associated with deficits in theory-of-mind (ToM) and reduced mental-state language.
  • Some individuals with schizophrenia exhibit excessive mentalizing, even without clear cues of intentionality, presenting a paradox.

Purpose of the Study:

  • To investigate the perception and attribution of intentionality in schizophrenia.
  • To resolve the paradox of impaired ToM alongside potential over-mentalizing.

Main Methods:

  • Utilized the chasing detection task to assess perceptual sensitivity to intentionality cues.
  • Evaluated spontaneous intentionality attributions and accurate ToM inferences in 23 schizophrenia patients and 20 healthy controls.

Main Results:

  • No group differences in perceptual sensitivity to intentionality cues.
  • Schizophrenia patients showed reduced spontaneous attributions and less accurate ToM performance.
  • Response bias, not sensitivity, correlated with intentionality attributions; referential/persecutory ideation linked to excessive mentalizing.

Conclusions:

  • Intentionality perception is intact in schizophrenia, separate from attribution.
  • A disruption exists in the pathway from perception to spontaneous attribution, impairing ToM.
  • Ideation drives inappropriate mentalizing in the absence of objective intentionality cues.