PSYC 1020H Chapter 5: Chapter 5

• School: Trent University
• Department: Psychology
• Course: PSYC 1020H
• Professor: Bond Barbara

Document Summary

Consciousness awareness of internal and external stimuli unconscious processing. Almost every human(cid:495)s behaviour comes from a mixture of conscious and. Mind wandering refers to people(cid:495)s experience of task-unrelated thoughts. Electroencephalograph (eeg) device that monitors the electrical activity of the brain over time by means of recording electrodes attached to the surface of the scalp. Summarizes the rhythm of cortical activity in the brain in terms of line tracings called brain waves. Brain wave tracings vary in amplitude (height) and frequency (cycles per second, cps) Beta (13-24 cps) normal waking thought. Alpha (8-12 cps) deep relaxation, meditation. Delta (under 4 cps) deep sleep. Biological rhythms periodic fluctuations in physiological functioning. Circadian rhythms 24-hour biological cycles found in humans and many other species. When exposed to light, some receptors in the retina send direct inputs to a small structure in the hypothalamus called the suprachiasmatic nucleus (scn).