Can Risk-Taking Be an Endophenotype for Bipolar Disorder? A Study on Patients with Bipolar Disorder Type I and Their First-Degree Relatives

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HIDIROĞLU ONGUN C., Esen O. D., Tunca Z., Yalcin S. N. G., Lombardo L., Glahn D. C., ...Daha Fazla

JOURNAL OF THE INTERNATIONAL NEUROPSYCHOLOGICAL SOCIETY, cilt.19, sa.4, ss.474-482, 2013 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 4
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1017/s1355617713000015
  • Dergi Adı: JOURNAL OF THE INTERNATIONAL NEUROPSYCHOLOGICAL SOCIETY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.474-482
  • Anahtar Kelimeler: Bipolar disorder, Risk-taking, Impulsive behavior, Endophenotype, First-degree relative, The Balloon Analogue Risk Task, SUSTAINED ATTENTION, IMPULSIVITY, PERSONALITY, PERFORMANCE, PROPENSITY, SEVERITY, BEHAVIOR, HISTORY
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Risk-taking behavior and impulsivity are core features of bipolar disorder. Whether they are part of the inherited aspect of the illness is not clear. We aimed to evaluate risk-taking behavior as a potential endophenotype for bipolar disorders, and its relationship with impulsivity and illness features. The Balloon Analogue Risk Task (BART) and Barratt Impulsiveness Scale-11 (BIS-11) were used to assess risk-taking behavior and impulsivity respectively in 30 euthymic bipolar I patients (BD), their 25 asymptomatic first-degree relatives (BD-R), and 30 healthy controls (HC). The primary BART outcome measure was the behavioral adjustment score (number of pumps after trials where the balloon did not pop minus the number of pumps after trials where the balloon popped). BD (p < .001) and BD-R (p = .001) had similar and significantly lower adjustment scores than HC. Only BD scored significantly higher on BIS-11 total (p = .01) and motor (p = .04) subscales than HC. Neither the BART, nor impulsivity scores associated with illness features. A limitation of this study is medicated patients and a heterogeneous BD-R were included. Riskiness may be a candidate endophenotype for bipolar disorder as it appears independently from illness features, presents similarly in BD and BD-R groups and differs from impulsivity. (JINS, 2013, 19, 474-482)