Respiratory related evoked potentials during the transition from alpha to theta EEG activity in Stage 1 NREM sleep.
It is believed that sleep walking is caused when the sleeper's pattern of alternating REM and NREM sleep cycles is suddenly broken for any reason.
Sleep is characterized as either REM or NREM, which stands for non-REM.
What distinguishes REM sleep from NREM sleep?
Conversely, people are more likely to move sporadically while in NREM sleep and do not remember the details of their dreams as well.