PSYCH 1X03 Chapter Notes - Chapter 5: Cannabinoid, Disinhibition, Caffeine
10 Dec 2015
School
Department
Course
Professor
Document Summary
Your stream of consciousness zig-zags in all directions. Freud: people"s feelings and behavior are influenced by unconscious needs, wishes, and conflicts that lie below the surface of conscious awareness stream of consciousness has depth. Unconscious needs, wishes, and conflicts influence behavior and feelings. Conscious and unconscious are different levels of awareness. When people are asleep or under anesthesia, they remain aware of external events to some degree. Consciousness evolved because it helped ancient humans survive and reproduce. Consciousness allows thinking through courses of action and their consequences. Then to choose the best course without having to try all the bad ones. Electroencephalograph (eeg) measures electrical activity in the brain. Measures in amplitude (height) and frequency (cycles per second (cps). Beta 13-24 cps normal waking thought, problem solving. Alpha 8-12 cps deep relaxation, blank mind, meditation. Delta 1-3 cps deep sleep. Consciousness is correlated with variations of brain activity. Biological rhythms periodic fluctuations in physiological functioning.
