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Lecture 6

PSYC 2000 Lecture Notes - Lecture 6: Pineal Gland, Fatal Familial Insomnia, Microsleep


Department
Psychology
Course Code
PSYC 2000
Professor
stevengreening
Lecture
6

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I. Consciousness
a. Awareness of everything around you and inside of your own head at any given moment
a.i. Used to organize your behavior, thoughts, sensations, and feelings
a.ii. Generated from a set of action potentials
b. 2 different kinds
a.i. Waking
a.i.1. Thoughts, feelings, sensations (clear and organized)
a.ii. Altered
a.i.1. Shifts in the quality or pattern of mental activity
a.i.1.a. Daydreaming
a.i.1.b. Hypnotic state
a.i.1.c. Meditative state
a.i.1.d. Increase alertness
a.i.1.e. Divided attention
a.i.1.f. Sleep
b. Sleep & Circadian Rhythm
a.i. "circa" = day "
a.ii. Key players
a.i.1. Suprachiasmatic nucleus (SCN) of the hypothalamus, pineal gland, and
melatonin
a.i.1.a. When it gets dark : the SCN triggers the secretion of melatonin
from the pineal gland
a.i.1.b. When it gets light: the SCN stops the secretion of melatonin
a.ii. Other factors related to sleep
a.i.1. Serotonin
a.i.1.a. Sleep regulation
a.i.2. Body temperature
a.i.1.a. The higher the temperature the more alert we are
a.i.1.b. The lower the temperature the sleepier we are
a.i.2. Adenosine
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