Mohammad Tahghi Kheirkhah; Vahid Nejiti; Mehran Mokarrami; Noorali Farrokhi
Volume 3, Issue 11 , March 2018, , Pages 9-22
Abstract
Introduction: Several studies have shown that exposure to acute stress can affect many cognitive functions. In this study, the decision-making process affected by external stressors has been investigated.Method: The present study, from the perspective of methodology is placed in the category of experimental ...
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Introduction: Several studies have shown that exposure to acute stress can affect many cognitive functions. In this study, the decision-making process affected by external stressors has been investigated.Method: The present study, from the perspective of methodology is placed in the category of experimental methods (pre-test/post-test with control and experimental groups). for this reason, among the students of department of psychology of Semnam University,a sample contained of 120 students,conveniently token and after screening, for matching the groups, 30 women and 30 men, randomly placed in gender groups of experiment and control. For assessing risky and rational decision making, Iowa Gambling Task, and for assessing state stress of participants, State–Trait Anxiety Inventory for Adults have been used.Data, analyzed with covariance analyze. Results: Results demonstrated that experimental groups in both women and men, after watching thriller movie tend to make more risky decisions (pDiscussion: It seems that feeling acute stress can disturb decision making process and cause people to make risky decisions.Ttherefore, paying attention to the role of coping with stress becomes more significant.
Mohammad Oraki; Afsaneh Dortaj; Atousa Mehdizadeh
Volume 2, Issue 6 , December 2016, , Pages 45-60
Abstract
Introduction: The aim of this study was to investigate the effectiveness of neurofeedback treatment on depression, anxiety, stress and psychosomatic abdominal pains in patients with clinical chronic psychosomatic abdominal pains in Shiraz. Methods: This research was a quasi-experimental study with pretest-posttest ...
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Introduction: The aim of this study was to investigate the effectiveness of neurofeedback treatment on depression, anxiety, stress and psychosomatic abdominal pains in patients with clinical chronic psychosomatic abdominal pains in Shiraz. Methods: This research was a quasi-experimental study with pretest-posttest control group. The study population was all women with chronic psychosomatic abdominal pains among whom, 40 patients were selected for this study; ultimately, data were analyzed with 30 patients (experimental group=15 and control group=15). Participants were randomly assigned to 2 groups consisting of 15 participants who were divided into an experimental group and a control group. In this intervention, the experimental group was treated with neurofeedback for 10 weeks (3 times a week for 40 minutes) and the control group received no intervention and was put on a waiting list. Also, experimental and control groups completed the Depression Anxiety Stress Scales-21 (DASS-21) in pre-test and post-test. Multivariate analysis of covariance was used for data analysis. Findings: The results of covariance analysis showed that neurofeedback therapy had an impact on reducing anxiety and depression (P<0.001). In other words, 53% of depression variation and 57% of anxiety variation in patients were due to neurofeedback, but neurofeedback revealed no effect on stress. Conclusion: It was concluded that neurofeedback could significantly reduce depression and anxiety, but it had no effect on stress.
