Neurocognitive functioning in bulimia nervosa: The role of neuroendocrine, personality and clinical aspects

S. Galderisi, P. Bucci, A. Mucci, L. Bellodi, G. B. Cassano, P. Santonastaso, S. Erzegovesi, A. Favaro, M. Mauri, P. Monteleone, M. Maj

Research output: Contribution to journalArticle

Abstract

Background Studies investigating neurocognitive impairment in subjects with eating disorders (EDs) have reported heterogeneous patterns of impairment and, in some instances, no dysfunction. The present study aimed to define the pattern of neurocognitive impairment in a large sample of bulimia nervosa (BN) patients and to demonstrate that neuroendocrine, personality and clinical characteristics influence neurocognitive performance in BN.Method Attention/immediate memory, set shifting, perseveration, conditional and implicit learning were evaluated in 83 untreated female patients with BN and 77 healthy controls (HC). Cortisol and 17β-estradiol plasma levels were assessed. Cloninger's Temperament and Character Inventory - Revised (TCI-R), the Bulimic Investigation Test Edinburgh (BITE) and the Montgomery-Asberg Depression Rating Scale (MADRS) were administered.Results No impairment of cognitive performance was found in subjects with BN compared with HC. Cortisol and 'Self-directedness' were associated with better performance on conditional learning whereas 17β-estradiol had a negative influence on this domain; 'Reward dependence' was associated with worse performance on implicit learning; and depressive symptomatology influenced performance on the Wisconsin Card Sorting Test (WCST) negatively.Conclusions No cognitive impairment was found in untreated patients with BN. Neuroendocrine, personality and clinical variables do influence neurocognitive functioning and might explain discrepancies in literature findings.

Original languageEnglish
Pages (from-to)839-848
Number of pages10
JournalPsychological Medicine
Volume41
Issue number4
DOIs
Publication statusPublished - Apr 2011

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Keywords

  • Co-morbidity
  • cognitive functions
  • eating disorders
  • neuroendocrine indices
  • reward dependence

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Applied Psychology

Cite this

Galderisi, S., Bucci, P., Mucci, A., Bellodi, L., Cassano, G. B., Santonastaso, P., Erzegovesi, S., Favaro, A., Mauri, M., Monteleone, P., & Maj, M. (2011). Neurocognitive functioning in bulimia nervosa: The role of neuroendocrine, personality and clinical aspects. Psychological Medicine, 41(4), 839-848. https://doi.org/10.1017/S0033291710001303