PSYC 101 Chapter Notes - Chapter 5: Barbiturate, Cardiovascular Disease, Delta Wave
Document Summary
On the nature of consciousness: consciousness: the awareness of internal and external stimuli, contents of consciousness is continually changing, william james recognized stream of consciousness. Variations in levels of awareness: freud believed that the stream of consciousness has depth, conscious and unconscious processes are different levels of awareness, people maintain some awareness even during sleep. Biological rhythms and sleep: biological rhythms: periodic fluctuations in physiological functioning. The sleep and waking cycle: electromyograph: records muscle activity and tension, electrooculograph: records eye movements, electrocardiograph: records contractions of the heart, electrocardiograph: records contractions of the heart. Rem sleep: rem = rapid eye movements, a deep stage of sleep. Repeating the cycle: people usually repeat the cycle four times during the course of the night, each time the cycle repeats, rem gets longer and the other stage get shorter. Age trends: newborns will sleep six to eight times in a 24 hour period.
