Openstax Psychology Chapter 4 Key Terms and Definitions

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Openstax Psychology Chapter 4 Key Terms and Definitions Alpha Wave a tiny wave at the start of the sleep cycle where humans are fully awake Beta Wave a small wave that follows alpha waves in NREM-1 ... in which humans are still awake but getting more drowsy Biological Rhythm Internal rhythms of biological activity Circadian Rhythm Biological rhythm takes place over 24-hour period, sleep-wake cycle, linked to natural light-dark cycle (controlled by the hypothalamus-specifically regarding melatonin that the body makes in response to light and dark) Consciousness Awareness of internal and external stimuli Delta Wave Type of low frequency, high amplitude brain wave characteristic of stage 3 and stage 4 sleep Hallucination fantastic images Hypnagogic sensations vivid bodily sensations Hypothalamus helps maintain homeostasis (balance) within body; controls the circadian rhythm Jet Lag Collection of symptoms brought on by travel from one time zone to another that results from the mismatch between our internal circadian cycles and our environment [Show More]

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