Body Rhythms Lecture

Body Rhythms Lecture - Psychology Lecture 9/17/10 9/20/10...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Psychology Lecture 9/17/10 – 9/20/10 Chapter 5: Body Rhythms and Mental States Realms of sleep Stage 1: feel yourself drifting on the edge of consciousness, lasts only a brief time, about 5-10 min., if you wake someone up during this stage, they may tell you they weren’t really asleep Stage 2: minor noises won’t disturb you, lasts about 20 min., brain begins to produce rapid rhythmic brain waves known as sleep spindles, body temp decreases, heart rate begins to slow down Stage 3: breathing and pulse have slowed down, transitional period between light sleep and deep sleep Stage 4: deep sleep, lasts approximately 30 min. REM: increased eye movement, loss of muscle tone, dreaming, increased respiration rate, increased brain activity, voluntary muscles actually become paralyzed 1→2→3→4→3→2→1 then into REM sleep, then the body returns to stage 2 sleep Sleep cycles throughout these stages occur approximately four or five times during the night
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/05/2011 for the course PS 101 taught by Professor Hoffman during the Fall '07 term at BU.

Page1 / 3

Body Rhythms Lecture - Psychology Lecture 9/17/10 9/20/10...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online