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Abnormal response to negative feedback in depression

  • P. J. SHAH (a1), R. E. O'CARROLL (a1), A. ROGERS (a1), A. P. R. MOFFOOT (a1) and K. P. EBMEIER (a1)...
    • Published online: 01 January 1999

Background. Recent studies have suggested that subjects with depression suffer a diagnosis-specific motivational deficit, characterized by an abnormal response to negative feedback that endures beyond clinical recovery. Furthermore, it has been suggested that negative feedback may motivate non-depressed controls, but not depressed patients, to improve their performance in neuropsychological tests.

Methods. We describe two studies. The first compared performance on the simultaneous and delayed match to sample (SDMS) task from the CANTAB neuropsychological test battery, in 20 patients with severe depression with 20 with acute schizophrenia, 40 with chronic schizophrenia and 40 healthy controls. The second examined the performance of depressed patients with diurnal variation in symptoms and cognitive function.

Results. All patients groups showed impairments on the simultaneous and delayed match to sample task compared to controls. Depressed patients did not show an abnormal response to negative feedback. Controls did not show a motivational effect of negative feedback. Depressed patients with diurnal variation showed no variation in their response to perceived failure. There was no evidence of abnormal response to negative feedback in any patient group using the ‘runs test’ or of a motivational effect in controls. Conditional probability analysis was not independent of the total number of errors made in the SDMS task.

Conclusions. Further studies are suggested to examine whether an abnormal response to negative feedback characterizes particular subgroups of patients suffering from depression.

Corresponding author
Address for correspondence: Dr P. J. Shah, MRC Brain Metabolism Unit, Royal Edinburgh Hospital, Morningside Park, Edinburgh EH10 5HF.
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Psychological Medicine
  • ISSN: 0033-2917
  • EISSN: 1469-8978
  • URL: /core/journals/psychological-medicine
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