Consciousness : personal awareness of mental activities, internal sensations, and the external environment Selective Attention : a tendency to orient themselves toward, or process information from only one part of the environment with the exclusion of other parts 2 Requirements of selective attention 3 Levels of consciousness (Levels of Information Processing) 1. High: controlled processes: sharp and focused Cocktail party effect: the ability to focus one's listening attention on a single talker among a mixture of conversations and background noises, ignoring other conversations 2. Middle: auto processes/ daydreaming: 3. Minimal (no): Unconscious (Freud) vs. Unconscious (bio-based) Sleep and Dreams: A. Circadian or Biological rhythms : a cycle or rhythm that is roughly 24 hours long; the cyclical daily fluctuations in biological and psychological processes Suprachiasmatic nucleus (SCN): a cluster of neurons in the hypothalamus in the brain that governs the timing of circadian rhythms Melatonin
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This note was uploaded on 03/31/2008 for the course PSYCH 100 taught by Professor Matchock,robert during the Fall '07 term at Pennsylvania State University, University Park.