title: Effects of emotional stimuli on cardiovascular responses in patients with essential hypertension based on brain/behavioral systems.
abstract: BACKGROUND
  Effects of emotional stimuli on hemodynamics in patients with essential hypertension based on brain/behavioral systems have not been studied broadly.
  
  
  METHODS
  Eighty five essential hypertensive male patients who had completed Carver-White BIS/BAS scale were enrolled to the study. Later, 25 BIS and 25 BAS patients were selected and their blood pressure and heart rate were recorded prior to stimuli induction. Participants were then exposed to stressor pictures. After that, 15 minutes of relaxation and cognitive tasks were performed. Finally, the participants were exposed to pleasant pictures. The blood pressure and heart rate were recorded after presenting of 2 stimuli.
  
  
  RESULTS
  Our study showed that BIS patients achieved higher scores in diastolic blood pressure and heart rate in comparison with BAS patients after presenting stressful stimuli. Also, BAS patients achieved lower scores in systolic blood pressure and heart rate in comparison with BIS patients after presenting pleasant stimuli.
  
  
  CONCLUSIONS
  In summary, BIS patients experience negative emotions more than BAS patients. Therefore, the role of induced mood states is important in relation to physical health.
authors.affiliation: Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Mohammadreza
authors.initials: M
authors.lastname: Taban Sadeghi
authors.affiliation: Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Hossein
authors.initials: H
authors.lastname: Namdar
authors.affiliation: Department of Psychology, Faculty of Education and Psychology, University of Tabriz, Tabriz, Iran.
authors.forename: Shahram
authors.initials: S
authors.lastname: Vahedi
authors.affiliation: Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Naser
authors.initials: N
authors.lastname: Aslanabadi
authors.affiliation: Department of Psychology, Faculty of Education and Psychology, University of Tabriz, Tabriz, Iran.
authors.forename: Davoud
authors.initials: D
authors.lastname: Ezzati
authors.affiliation: Department of Psychology, Faculty of Education and Psychology, University of Tabriz, Tabriz, Iran.
authors.forename: Babak
authors.initials: B
authors.lastname: Sadeghi
keywords: Approach System Behavioral; Behavioral Inhibition System; Emotional Stimuli; Heart Rate