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Emotional memory in schizophrenia.

Jeremy Hall1, Jonathan M Harris, James W McKirdy

  • 1Division of Psychiatry, University of Edinburgh, Kennedy Tower, Royal Edinburgh Hospital, Edinburgh EH10 5HF, UK. jhall5@staffmail.ed.ac.uk

Neuropsychologia
|November 28, 2006
PubMed
Summary
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Patients with schizophrenia exhibit impaired emotional memory, particularly for negative scenes, suggesting abnormal amygdala function. This impacts recognition and recall, highlighting a key cognitive deficit in schizophrenia.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Psychiatry

Background:

  • Emotionally arousing stimuli are generally better remembered than neutral stimuli.
  • This emotional memory effect is linked to amygdala and medial temporal lobe interactions, including the hippocampus.
  • Schizophrenia is associated with cognitive deficits, and abnormal amygdala function is suspected.

Purpose of the Study:

  • To investigate emotional memory performance in patients with schizophrenia.
  • To determine if deficits are consistent with abnormal amygdala function.
  • To compare emotional memory in schizophrenia patients versus matched controls.

Main Methods:

  • Schizophrenia patients and controls viewed negative, positive, and neutral scenes.
  • Subjects rated arousal levels and underwent surprise recall and recognition memory tests.

Related Experiment Videos

  • Tests were conducted at 10 minutes (recall) and 3 weeks (recall and recognition).

    • Main Results:

    • Schizophrenia patients and controls had similar arousal ratings.
    • Patients showed a loss of emotional enhancement in recognition memory for both positive and negative scenes.
    • Patients exhibited overall recall deficits, especially for highly arousing negative scenes.

    Conclusions:

    • Findings suggest abnormal medial temporal lobe and amygdala function in schizophrenia.
    • Emotional memory deficits, particularly recognition, are evident in schizophrenia.
    • Impaired emotional memory may be a key cognitive feature of schizophrenia.