TY - JOUR
T1 - Episodic stress associated with writing a graduation thesis and free cortisol secretion after awakening
AU - Izawa, Shuhei
AU - Sugaya, Nagisa
AU - Ogawa, Namiko
AU - Nagano, Yuichiro
AU - Nakano, Masako
AU - Nakase, Emiko
AU - Shirotsuki, Kentaro
AU - Yamada, Kosuke Chris
AU - Machida, Kazuhiko
AU - Kodama, Masahisa
AU - Nomura, Shinobu
PY - 2007/5
Y1 - 2007/5
N2 - Cortisol secretion after awakening, an index of hypothalamus-pituitary-adrenal axis activity, appears to be related to psychosocial stressors, or to symptoms caused by psychosocial stressors. The relationship between the quality, duration, and magnitude of psychosocial factors and cortisol secretion is however, unclear. Therefore, the effect of episodic stress associated with writing a graduation thesis on cortisol secretion after awakening was investigated. Saliva samples were collected from 10 undergraduate students at awakening, and 30, 45, and 60 min after awakening 1 month, 2 weeks, and a few days before the thesis submission and 1 week after the submission. They also completed the Short form of Profile of Moods Scale (POMS-S) on the night before each sampling. Results indicated that cortisol levels were higher a few days before the thesis submission compared to 1 month before submission. Scores of "Fatigue" and "Tension-Anxiety" in POMS-S were also higher a few days before submission. These results suggest that episodic stress associated with writing a graduation thesis caused an increase in cortisol levels after awakening.
AB - Cortisol secretion after awakening, an index of hypothalamus-pituitary-adrenal axis activity, appears to be related to psychosocial stressors, or to symptoms caused by psychosocial stressors. The relationship between the quality, duration, and magnitude of psychosocial factors and cortisol secretion is however, unclear. Therefore, the effect of episodic stress associated with writing a graduation thesis on cortisol secretion after awakening was investigated. Saliva samples were collected from 10 undergraduate students at awakening, and 30, 45, and 60 min after awakening 1 month, 2 weeks, and a few days before the thesis submission and 1 week after the submission. They also completed the Short form of Profile of Moods Scale (POMS-S) on the night before each sampling. Results indicated that cortisol levels were higher a few days before the thesis submission compared to 1 month before submission. Scores of "Fatigue" and "Tension-Anxiety" in POMS-S were also higher a few days before submission. These results suggest that episodic stress associated with writing a graduation thesis caused an increase in cortisol levels after awakening.
KW - Awakening
KW - Cortisol
KW - Episodic stress
KW - Graduation thesis
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U2 - 10.1016/j.ijpsycho.2007.01.004
DO - 10.1016/j.ijpsycho.2007.01.004
M3 - Article
C2 - 17316855
AN - SCOPUS:34247496425
SN - 0167-8760
VL - 64
SP - 141
EP - 145
JO - International Journal of Psychophysiology
JF - International Journal of Psychophysiology
IS - 2
ER -