title: Emotional and physiological responses to normative and idiographic positive stimuli in bipolar disorder.
abstract: BACKGROUND
  Few studies have examined differences in emotional responding among distinct types of positive stimuli. This is important to understand both for individuals characterized by extreme positive mood (i.e., bipolar disorder) and healthy adults.
  
  
  METHODS
  Using a multi-method within-subjects design, the current study examined physiological, behavioral, and self-reported responses to normative (film) and idiographic (memory) happy stimuli in bipolar (BD; n=25) and healthy control groups (CTL; n=23).
  
  
  RESULTS
  For both groups, the happy films were associated with greater self-reported and behavioral displays of positive emotion compared to the happy memory. Furthermore, the BD group displayed greater cardiac vagal tone - a putative marker of positive emotion - across both the film and memory.
  
  
  CONCLUSIONS
  Normative stimuli were more potent elicitors of positive emotion compared to idiographic stimuli. The study provided further evidence for cardiac vagal tone as a potential biomarker of extreme positive emotion in BD.
authors: Department of Psychology, Yale University, New Haven, CT, USA. June.gruber@yale.edu
authors: June
authors: J
authors: Gruber
authors: Sunny
authors: S
authors: Dutra
authors: Polina
authors: P
authors: Eidelman
authors: Sheri L
authors: SL
authors: Johnson
authors: Allison G
authors: AG
authors: Harvey
references: J Abnorm Psychol. 2006 Aug;115(3):539-544
references: 16866593
references: Arch Gen Psychiatry. 2005 Jun;62(6):617-27
references: 15939839
references: Psychophysiology. 1997 Nov;34(6):623-48
references: 9401419
references: Behav Res Ther. 2008 Dec;46(12):1251-8
references: 18990364
references: Emotion. 2008 Feb;8(1):23-33
references: 18266513
references: J Psychopathol Behav Assess. 2001 Sep 1;23(3):133-143
references: 21765592
references: Behav Res Ther. 2009 Aug;47(8):697-704
references: 19501814
references: Behav Res Ther. 2009 Jan;47(1):88-92
references: 19013553
references: Psychiatr Serv. 1997 Apr;48(4):491-6
references: 9090732
references: J Exp Psychol Gen. 1994 Jun;123(2):201-15
references: 8014613
references: Encephale. 2009 Oct;35(5):484-90
references: 19853723
references: Psychol Med. 1996 May;26(3):477-86
references: 8733206
references: J Abnorm Psychol. 1995 May;104(2):381-4
references: 7790640
references: Psychol Med. 2009 May;39(5):785-91
references: 18713486
references: Br J Psychiatry. 1978 Nov;133:429-35
references: 728692
references: Emotion. 2009 Apr;9(2):265-270
references: 19348538
references: Br J Clin Psychol. 2006 Mar;45(Pt 1):105-10
references: 16480569
references: J Abnorm Psychol. 2001 Feb;110(1):40-8
references: 11261398
references: J Clin Psychol. 2009 Sep;65(9):925-41
references: 19459195
references: J Pers. 2004 Dec;72(6):1191-216
references: 15509281
references: Clin Psychol Rev. 2005 Feb;25(2):241-62
references: 15642648
references: Biol Psychiatry. 1999 Aug 15;46(4):525-31
references: 10459403
references: J Abnorm Psychol. 2005 Nov;114(4):627-39
references: 16351385
references: Psychophysiology. 1981 May;18(3):232-9
references: 7291438