PSYC 211 Study Guide - Midterm Guide: Zygote, Gonad, Allosome

• School: McGill University
• Department: Psychology
• Course: PSYC 211
• Professor: Jonathan Britt

Document Summary

Together they provide the signature patterns of sleep! You get some sort of signal that is measured in voltage. Eog: this is a measure of body movements. Emg: a measure of the tension in your face. Eeg measures synchronous activity of a population of neurons. Imagine if we have a population of neurons. Frequency: how quickly is the signal is changing. This is the main way to identify the stage of sleep. If you are awake, you start all alert. You have beta activity at this point in time. You start getting drowsy and want to take a break, the oscillations start going to alpha frequencies. In the early stages of sleep, you have theta oscillations. In slow wave sleep (stages three and four), you have delta activity. If you are of a larger weight in terms of species in general, the amount of sleep you need in a given day is less.