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Related Experiment Videos

Sustained attention deficit in bipolar disorder.

Luke Clark1, Susan D Iversen, Guy M Goodwin

  • 1University Department of Psychiatry, Warneford Hospital, Oxford.

The British Journal of Psychiatry : the Journal of Mental Science
|April 2, 2002
PubMed
Summary

Individuals with bipolar disorder often experience persistent neuropsychological deficits, particularly in sustained attention, even when euthymic. This sustained attention impairment may serve as a vulnerability marker for the condition.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Cognitive Psychology

Background:

  • Bipolar disorder recovery is often incomplete, with persistent neuropsychological impairment during euthymic states.
  • Previous research was confounded by mild affective symptoms in remitted patients.

Purpose of the Study:

  • To characterize neuropsychological functioning in the euthymic phase of bipolar disorder.
  • Emphasis on executive functioning tasks.

Main Methods:

  • Compared 30 euthymic bipolar I patients with 30 healthy controls.
  • Utilized neuropsychological tasks sensitive to prefrontal cortex function.

Main Results:

  • Bipolar I patients showed impairments in attentional set shifting, verbal memory, and sustained attention.

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  • Sustained attention deficit persisted after controlling for mild affective symptoms.
  • This deficit correlated with illness progression and was present even near illness onset.

    • Conclusions:

    • Sustained attention deficit may be a neuropsychological vulnerability marker for bipolar disorder.
    • This finding offers a focus for understanding the disorder's phenotype and involved neural networks.