Spina bifida meningomyelocele (SBM) is a neural tube defect that involves dysraphism of the spinal cord and extensive reorganization of the brain. The authors assessed the relationship between chronotype, diurnal preferences, and sleep problems in individuals with SBM and healthy controls. Although individuals with SBM showed the characteristic decelerating quadratic relationship between age an...

This study clarified relationships between morningness-eveningness typology and cumulative fatigue or depressive state in Japanese male workers. 959 male chemical factory workers answered a questionnaire that included the MEQ, SDS, CFSI, age, marital status, sleep indexes, life habits, and labor load. Logistic regression analysis was performed with SDS and CFSI as objective variables. We obtain...

Research examining various psychological correlates of circadian type (also known as diurnal preference) has been, over the years, quite expansive. A notable omission within this research program would appear a systematic exploration of the relation between intelligence and morningness-eveningness. The present study redressed this imbalance. 420 participants performed two self-report inventorie...

s | 69 analysis with structural equation modeling was performed for correlation between Japanese diet and health. As the result of the trend test, intake of rice and miso (fermented soybean paste) was correlated with sleep quality (trend p=0.006 and 0.003, respectively) and rice consumption is also correlated with impulsiveness (trend p=0.007). Fish consumption was correlated with impulsiveness...

Abstract Introduction Circadian factors may contribute to sleep difficulties among chronic insomnia disorder (CID) patients who do not otherwise meet full criteria for a circadian rhythm sleep-wake disorder, particularly delayed and advanced phase disorders. Current nosology suggests that using preference measures can provide important diagnostic information aid in differential diagnosis. Howev...

Research examining various psychological correlates of circadian type (also known as diurnal preference) has been, over the years, quite expansive. A notable omission within this research program would appear a systematic exploration of the relation between intelligence and morningness± eveningness. The present study redressed this imbalance. 420 participants performed two self-report inventori...