BIOL 1002 Chapter : Bio 1002 CH 20 BIOL 2
Document Summary
We do this for information that is personal to us: selective inattention- if you"re attending to one thing, you"re selectively inattending to other things. What is a circadian rhythm: a daily behavior or psychological cycle that occurs on a roughly 24 hour cycle and includes sleep and wakefulness. This sleep-wake cycle is ultimately controlled by the hypothalamus. With each cycle, stage 4 sleep decreases and the duration of rem sleep increases: awake and alert strong mental engagement with the brain exhibiting beta waves. Ex: a person involved in a conversation: awake, but relaxed when an individual closes his eyes but remains awake, his brain activity slows down and exhibits alpha waves. Ex: a person meditating: sleep stage 1 if awakened during this stage, ppl would probably not believe they were actually sleeping. You can experience hypnogogic images (vivid visual events) and hypnic jerks (knees, legs or whole body jerks: sleep stage 2 theta waves.
