17th Annual ECSS-Congress, Bruges 2012

Abstract details

Abstract-ID: 1496
Session: [MO-SH09] Psychology: Stress and Anxiety
Lecture room: L1
Date & time: 07.07.2016 / -
Authors: Hoshino, S.
Institution: Nara Women's University
Department: Health Sciences
Country: Japan
Abstract text Introduction In this study, using differential difficulties of darts tasks, we investigated to compare the emotional shift seen in the continuous performance of tasks in psychophysiological indices, and be shown to correspond to the reversal theory of Apter (1984), which has been described in the subjective 2 axis of emotional arousal and hedonic tone. Methods Subjects: 10 college-aged women (19.7 ± 0.7 years). Procedure: authorized the board (distance 237cm, height 237cm) was used as darts (20g). A reference circle for the each subjects, was set to a distance of half from the center of the 12 throwing darts. There were two aiming-tasks using differential difficulties of darts targets; 1) Easy (E) task: scoring area was set to 1.5 times of the reference circle radius, which was 5,3,1 points from the center at regular intervals in 3 equally divisions on a concentric circle. 2) Difficult (D) task: scoring area was set to the reference circle, and score range was the same. Physiological indices: Oxygen dynamics of the left forehead value (the prefrontal cortex), the two-wavelength by the semiconductor laser (780nm, 830nm) by using blood oxygen monitor (BOM-L1, Omega Wave), Oxy-Hb, deOxy-Hb Total-Hb were measured. In addition, continuously measured blood flow between the probes (FLOW), blood volume (MASS), blood flow velocity (VELOCITY) (omega flow FLO-C1, Omega Wave, 780nm) was attached. They are all used to determine the average value from the set 1-throw after the beginning of two seconds before until after two seconds of 3-throw, and the amount of change from at rest and its set representative value was calculated. ECG is derived from chest bipolar lead (ECG100C, Biopack Systems) sampling by 200Hz, and the R-R interval was acquired. Psychological indices: Each subject asked their psychological states for the next block (3-throw × 4 sets) in the ’anxiety’, ’boring’, ’excitement’, and ’relax’. Results and Discussion 1. Capture the activation of the prefrontal cortex: A difference to the skin blood flow was observed between the tasks. Prefrontal cortex, regardless of the degree of difficulty is activated. 2. Operation of arousal level: By degree of difficulty of the tasks, arousal level has shown significant difference. D task was said to be a higher activation ’challenge’. 3. Awakening indicator of the autonomic nervous system, heart rate: Slightly correlated with increased anxiety, excitement in the D task was observed. 4. Slightly negative correlation with the increase of boredom was observed in E task. 5. Reversal theory: ’Anxiety’ was a negative emotion that occurs when not accompanied by skill in the tasks. Slight association was observed in the activation of the brain and the activation of this emotion. References Apter, M. J. (1989). Reversal theory: Motivation, emotion and personality. viii 208 pp. Doi, H., Nishitani, S., and Shinohara, K. (2013). NIRS as a tool for assaying emotional function in the prefrontal cortex. Frontiers in Human Neuroscience. 7, 770. Contact satoko@cc.nara-wu.ac.jp
Topic: Psychology
Keyword I: emotion
Keyword II: reversal theory
Keyword III: psychophysiology