The relationships between morningness-eveningness, ageing and personality |
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| Authors: | Luciano Mecacci Alberto Zani Gastone Rocchetti Reginaldo Lucioli |
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| Affiliation: | 1. Rush Alzheimer''s Disease Center, Rush University Medical Center (CMG, LY, RSW, DAB, PAB), Chicago, IL;2. Department of Psychiatry and Behavioral Sciences, Rush Medical College (CMG, RSW, PAB), Chicago, IL;3. Department of Neurological Sciences, Rush Medical College (CMG, LY, RSW, DAB), Chicago, IL;4. Department of Neurology, Indiana University School of Medicine (CCS), Indianapolis, IN;1. Department of Psychology, University of Cincinnati, PO Box 210376, Cincinnati, OH 45221–0376, USA;2. Department of Psychology, University of Houston, 126 Heyne Building, Houston, TX 77204–5022, USA;3. Department of Internal Medicine, Division of Immunology, Allergy, and Rheumatology, University of Cincinnati College of Medicine, 3225 Eden Avenue, Cincinnati, OH 45267–0563, USA;4. The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA;1. Research Scientists, Beef Cattle Section, Newe-Ya''ar Research Center, Department of Natural Resources, Agricultural Research Organization, Israel;2. Research Scientists, Department of Natural Resources, Agricultural Research Organization, the Volcani Center, Israel;3. Research Scientists, MIGAL—Galilee Technological Center, Israel;4. Associate Professor, Department of Molecular Biology and Ecology of Plants, Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel;1. Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan;2. Department of Cardiovascular Medicine, Juntendo Tokyo Koto Geriatric Medical Center, Tokyo, Japan;3. Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan;4. Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo, Japan |
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| Abstract: | In an attempt to study the relationship between ageing and personality and the morningness-eveningness dimension two experiments were carried out. In experiment I, an Italian version of the Morningness-Eveningness Questionnaire (MEQ) was administered to 435 Ss ranging in age from 20 to 79 yr, and divided in to six age groups. In comparison with younger people older S tended to display greater Morningness-Eveningness scores. These results suggest that ageing relates to a shifting toward morningness. In Experiment II the Eysenck Personality Questionnaire (EPQ) and the MEQ were administered to 233 Ss (20–29 yr). Morning-types had significantly higher N scores and tended to be insignificantly more introverted. Evening-types had significantly higher N scores and tended to be insignificantly more extraverted. The present findings are consistent with reports of a tendency for morning-types to be introverted and for evening-types extraverted. However, they do provide some evidence of individual differences on the neuroticism and psychoticism dimensions of personality between the two diurnal types. |
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