Psychology: Consciousness, Learning, Memory, Dreams

889 Words4 Pages
Jason Small Into to Psychology 10-30-12 Essay Exams Unit 2: Consciousness, Learning, & Memory Consciousness- Sleep & Dreams: Module 8; Test 1 1) First off, I would explain to my friend that changing his sleeping patterns on particular days of the week interrupts his circadian rhythm. Circadian comes from the two Latin words; circa, which means about and dia which means day. These two words refer to the bodily rhythms that exist throughout the day. A circadian rhythm is a biological clock (located in the nucleus of the hypothalamus) that helps to regulate our sleeping patterns in ways that our wakefulness during the day is maintained. The clock cycles around a 24 hour time period, and is best regulated when usual routines are followed, most importantly when we wake up. When people interrupt their normal schedules as to work an unusual late shift, or in this case to just stay up late, the circadian rhythms are thrown off course. Once off course, the circadian rhythms are unable to quickly adapt to a rapidly changing activity schedule, and ends up resulting in a lack of sleep. My friend’s poor decisions are throwing his rhythms off schedule, and are affecting his deprivation of sleep throughout the rest of the week. 2) Sleep is prompted by natural cycles of activity in the brain and consists of two basic states: rapid eye movement sleep and non-rapid eye movement sleep, which consists of stages 1 through 4. Stage one is considered the lightest stage of the sleep cycle. In this starting process, the brain creates very slow brainwaves, commonly known as the transition period between consciousness and unconsciousness. This period of sleep only lasts a brief five to ten minutes. The second stage of sleep lasts for approximately twenty minutes. Body temperature starts to decrease, heart rate begins to slow, and the brain begins to produce rapid,

More about Psychology: Consciousness, Learning, Memory, Dreams

Open Document