01:830:101 Chapter Notes - Chapter 4: Slow-Wave Sleep, Retinal Ganglion Cell, Circadian Rhythm

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16 Nov 2017
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01:830:101 Full Course Notes
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Consciousness the state of being aware of oneself, one"s thoughts, and/or the environment. Cognitive psychology - the scientific study of mental processes such as thinking, problem solving, and language. Automatic processing - collection and sometimes storage of information without conscious effort or awareness, involuntary cognitive activity. Our sensory systems absorb an enormous amount of info, so the brain must sift through it and decide what is most important and what to keep. Selective attention - the ability to focus awareness on a small segment of info that is available through our sensory systems. Objective - free of opinions, beliefs, expectations, and values. Circadian rhythm - the daily patterns roughly following the 24 hour cycle of daylight and darkness. Hypothalamus important in maintaining homeostasis in the body. Nestled in the hypothalamus is the suprachiasmatic nucleus (scn) or master clock . Scn knows the difference between day and night because of retinal ganglion cells, or light sensing cells.

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