PSY 4327 Lecture Notes - Lecture 1: Non-Rapid Eye Movement Sleep, Sleep Spindle, Muscle Tone

• School: University of Ottawa
• Department: Psychology
• Course: PSY 4327
• Professor: Kathleen Biard

Document Summary

Lecture 1 sleep structure (january 15, 2016) Non-rem (eyes stay still) & rem (rapid eye movement: rem = dreaming, brain is very awake, nr = restorative, rem looks like you"re awake when only looking at eeg. Emg muscle tone: when asleep, muscles relax, in rem, muscle tone is very low, 1) airflow, 2) effort: thoracic & abdominal. Breathing: important because breathing problems might wake people up: hypnic jerks/sleep starts, dozing, transitionary stage, eyes might be closed, relaxed, might have muscle tone, ex: on the bus, in the class, 5-10 mins. N2: sleep spindles & k complexes (patterns in sleep: proper sleep. N3 (formerly 3&4): deepest most physically restorative stage of sleep: more difficult to awaken from this stage, decreases with age, breathing regular, hr decreases. When eyes move, and you put electrodes near them, you catch electrical signals because front of eyes has slight positive charge and back of eyes has slight negative charge.