PSY100Y5 Chapter Notes - Chapter 5: Slow-Wave Sleep, Non-Rapid Eye Movement Sleep, Circadian Rhythm
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PSY100Y5 Full Course Notes
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Consciousness is the awareness of internal and external stimuli. Consciousness is continually changing, stream of consciousness (william james) Mind-wandering refers to people"s experience of task-unrealted thoughts. Consciousness doesn"t arise from any distinct structure in the brain, but from activity in distributed networks of neural pathways. Eeg is a device that monitors the electrical activity of the brain over time by means of recording electrodes attached to the surface of the scalp. Human brain-waves are divided into four principal bands: Our degree of intentional control over cognitive processes varies. Controlled processes are those over which we have intentional control while automatic processes occur without our intention. Brain waves vary in frequency(cps) and amplitude. Discovery of rapid eye movement(rem) and the realization by william dement of the significance of dreams fueled scientific research on sleep. Stanford was the first university that had a lab dedicated to sleep research. Variations in consciousness are shaped in part by biological rhythms.
