- Subject index
The examination of personality and individual differences is a major field of research in the modern discipline of psychology. Concerned with the ways humans develop an organised set of characteristics to shape themselves and the world around them, it is a study of how people come to be 'different' and 'similar' to others, on both an individual and a cultural level. This volume focuses on the multiple origins of personality and individual differences, in chapters arranged across three thematic sections: Part 1: Biological Origins of Personality and Individual Differences Part 2: Developmental Origins of Personality and Individual Differences Part 3: Environmental Origins of Personality and Individual Differences With outstanding contributions from leading scholars across the world, this is an invaluable resource for researchers and graduate ...
Chapter 4: Morningness–Eveningness and Sociosexuality from a Life History Perspective
Morningness–Eveningness and Sociosexuality from a Life History Perspective
Basic Aspects of Morningness–Eveningness
Many human biological processes are regulated by circadian rhythms, sometimes referred to as ‘internal clocks'. These circadian rhythms apply to hormone concentrations, brain activity, heart rate, and body temperature. In humans and many other animals, a ‘master clock’ is attuned to a 24-hour cycle, and corresponds to sleep and wakefulness. The master clock in humans operates through the action of the suprachiasmatic nucleus (SCN) in the hypothalamus (Herzog et al., 1998). Although our circadian rhythms have been selected based on a general pattern of light and dark, environmental ...