Sign-up today to join over 5 million learners already on ALISON:

Biology and Behaviour in Psychology


Comments about States of consciousness - Stages of sleep one to four

The comment must be about:
- Module: States of consciousness
- Topic: Stages of sleep one to four
Please note: Comments are not reviewed by ALISON Support staff. For technical support, please contact [email protected]

Latest Comments

  • aaa
    Nicoline Mullen United Kingdom Just wondering about the brain activity during coma, is there different depths or forms of brain activity
    2015-04-16 20:04:34

  • aaa
    Douglas Robillard United States of America Cycles of sleep have various stages.
    2015-04-15 16:04:56

  • aaa
    Amanda Toussaint Spain what you would see if you had an EEG or picture of the electrical activity in your brain, would it be made up of many of the brain waves all at the same time?
    2015-03-14 17:03:56

  • aaa
    Mike Lees United Kingdom Does this mean a "light sleeper" does not reach stage 4?
    2015-03-13 13:03:05

  • aaa
    Bernard Sheridan Ireland This would explain why sometimes during the night the slightest noise will wake a person and other times the roof might be falling and nothing..
    2015-02-19 17:02:32

  • aaa
    Simone Amos United Kingdom What happens when you are pregnant and are a heavy sleeper? As you all know pregnant women go through stages of waking up at night and going to the toilet 1-2 times per night
    2015-02-15 23:02:59

  • aaa
    Simone Amos United Kingdom That would explain... Whether the person is really sleepy or in a heavy sleep.
    2015-02-15 23:02:35

  • aaa
    Pauline Malcolm United Kingdom We only dream for ten minutes?
    2014-12-29 13:12:15

  • aaa
    Dre Johnson Grenada stage 3,onset of slower delta waves,, therefore the brain waves would be higher in amplitude but lower in frequency
    2014-11-19 18:11:22

  • aaa
    Angela Armendariz United States of America if people would pay attention to what there reading instead of asking ? it says what the 4 stages of sleep are and what each does
    2014-10-22 21:10:09

  • aaa
    BANDR GBELAN ALHARBI Saudi Arabia Stage one: This stage is characterised by small, irregular waves which are a combination of alpha and theta waves.
    2014-07-21 07:07:17

  • aaa
    Tamika Grant Jamaica what are the stages of sleep?
    2014-06-16 23:06:14

    • aaa
      Maawiya Adam Issa Israel there are four types of sleep. first ,REM,this is very beginning stage when sleeper is ready to be awaken.second ,is sleep spindles and third is slower delta sleep and fourth is pure delta sleep.so sleeper passes all this stages five or six times a night.
      2014-10-07 20:10:17
Loading Menu