PSY 2012 Lecture Notes - Lecture 3: Suprachiasmatic Nucleus, Sleep Spindle, Inattentional Blindness
Document Summary
Consciousness: awareness of ourselves & our environment: breakdown, external vs. internal, directed vs. flowing (stream of consciousness, just write whatever comes to mind) vs. divided (trying on focus on more than one thing at a time) Selective attention: focusing of conscious awareness on a particular stimulus. Inattentional blindness: failing to see visible objects when attention is directed elsewhere. Higher level consciousness: actively focus efforts on obtaining a goal (e. g. , directed: controlled processing. Lower level awareness: requires little attention (e. g. , flowing: automatic processing (allows divided, daydreaming (in middle of conscious and unconscious) Altered states: noticeably different state of awareness (e. g. , drugs, hypnosis) Stage 1: relaxed state of dream-like awareness between awake & sleep: hypnogotic sleep. Feel like you"re falling because muscles are tensing. Stage 2: characterized by periodic appearance of sleep spindles. Stages 3 & 4: slow-wave sleep (very important because this is where we regenerate) Rem (rapid eye movement) sleep: sleep stage during which vivid dreams commonly occur.
