PSYCO275 Chapter Notes - Chapter 13: Biorhythm, Freerunning, Cardiovascular Disease
10 Dec 2016
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Psyco275, textbook note, chapter 13, section 1 & 2. Diurnal animal: organism that is active chiefly during daylight. Metabolic syndrome is the combination of medical disorders, including obesity and insulin abnormalities, that collectively increase the risk of developing cardiovascular disease and diabetes. A biological clock is a neural system that times behaviour. Biorhythm: inherent timing mechanism that controls or initiates biological processes. Many animals" migratory and mating cycles are circannual. Infradian rhythms: biorhythms that have monthly or seasonal periods greater than a day but less than a year. Ultradian rhythms have a period of less than one day. Period: time required to complete an activity cycle. Free-running rhythm: rhythm of the body"s own devising in the absence of all external cues. Entrain is to determine or modify the period of a biorhythm. An entrained biological clock allows an animal to synchronize its daily activity across the seasonal changes.
