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Related Experiment Videos

Semantic priming in thought disordered schizophrenic patients.

T C Manschreck1, B A Maher, J J Milavetz

  • 1Massachusetts General Hospital, Harvard Medical School, Boston.

Schizophrenia Research
|January 1, 1988
PubMed
Summary
This summary is machine-generated.

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Schizophrenia patients with thought disorder showed faster word recognition when primed with associated words. This suggests an attentional deficit impacts language processing in these individuals.

Area of Science:

  • Cognitive Psychology
  • Psychopathology
  • Neuroscience

Background:

  • Schizophrenia is a complex mental disorder characterized by thought disorder.
  • Language dysfunction is a core feature of schizophrenia, potentially linked to attentional deficits.
  • Network models of semantic memory propose associational activation influences word recognition.

Purpose of the Study:

  • To investigate word recognition processes in individuals with schizophrenia, specifically comparing thought-disordered (TD) and non-thought-disordered (NTD) groups.
  • To examine the impact of semantic priming on lexical decision tasks across different patient groups and healthy controls.
  • To explore the relationship between enhanced associational activation and attentional deficits in schizophrenic language functioning.

Main Methods:

Related Experiment Videos

  • A lexical decision task was administered to groups of TD schizophrenics, NTD schizophrenics, unipolar affective patients, and normal controls.
  • Participants identified words preceded by either an associated or an unrelated prime word.
  • Recognition speed was measured as the primary outcome variable.

Main Results:

  • All groups demonstrated increased recognition speed when words were preceded by associated primes compared to unrelated primes.
  • Thought-disordered schizophrenic patients exhibited significantly greater facilitation in recognition speed under the associated prime condition than all other groups.
  • These findings support the hypothesis that an attentional deficit underlies language disturbances in schizophrenia.

Conclusions:

  • Enhanced associational activation in thought-disordered schizophrenia is consistent with network models of semantic processing.
  • The results provide evidence for an attentional deficit contributing to the language abnormalities observed in schizophrenia.
  • Further research into the cognitive mechanisms underlying schizophrenic thought disorder is warranted.