PSYC 1101 Chapter Notes - Chapter 3: Delta Wave, Inattentional Blindness, Circadian Rhythm
23 Feb 2016
School
Department
Course
Professor
Document Summary
Change blindness: failing to notice changes in the environment. Circadian rhythm: we operate on a 24 hour cycle; biological clock, body temp rises as morning comes a. the body resets its clock every day to light (trigger is called a zeitgerber). All four stages of the sleep cycle last 90 mins all together. Rem sleep: rapid eye movement; classified as part of stage. When you are awake and relaxed eeg shows alpha waves. Stage 2: lasts about 20 mins, asleep at this point (spend. 18) about half of your night in this stage) Stage 3: transitional sleep, you are becoming hard to awaken. Stage 4 is a deep sleep, very large and slow delta waves, very hard to awaken. During rem, genitalia becomes aroused: motor cortex activates however brainstem blocks all motor signals leaving you paralyzed b. heart rate increases, rem sleep occurs more frequently as the night goes on, opposite of deep sleep.
