PSY100H1 Chapter Notes - Chapter 5: Tegmentum, Ayahuasca, Orexin

• School: UTSG
• Department: Psychology
• Course: PSY100H1
• Professor: Dan Dolderman

Document Summary

A person"s subjective awareness, including thoughts, perceptions, experiences of the world and self-awareness thoughts and perceptions constantly adapt to new situations. Infradian rhythm: any rhythm occurs over a period of time longer than a day e. g. menstruation circannual rhythm: yearly cycle ultradian rhythm: more frequent biological rhythms e. g. heart rate. Polysomnography: set of objective measurements used to examine physiological variables during sleep e. g. thermometer, electrical sensors (muscle activity) Sleep cycle often measured by electroencephalogram (eeg) measures brain waves via sensors to scalp; output= frequency: number of up-down cycles per second; amplitude: height & depth of up-down cycle. Awake= beta waves: high frequency, low amplitude different active brain regions. Restore & repair hypothesis: body needs to restore energy levels and repair any wear and tear experienced during day"s activity physical & psychological necessity not enough= cognitive decline, emotional disturbance & impaired functioning immune system.