PSY 478 Lecture Notes - Lecture 1: Neuromodulation, Ventrolateral Preoptic Nucleus, Thalamus

• School: University of Arizona
• Department: Psychology Main
• Course: PSY 478
• Professor: Fabian Fernandez, PhD

Document Summary

Progression: during early light sleep the brain enters a very high-amplitude, slow, regular wave form called theta activity (4-7hz, arousal threshold for waking during this stage are selective, adaptive. Myoclonia: duri(cid:374)g earl(cid:455), light, so(cid:373)eti(cid:373)es (cid:455)ou feel like (cid:455)ou"re falli(cid:374)g, hypnagogic myoclonus as a side effect of. Hidden battle for control in the brain that happens each night: myoclonic jerks are a sign that the motor system can still exert some control over the body as sleep beings. Rapid eye movement sleep eye movements under closed eyelids. Rem is sleep is characterized by eye movement, increased, erratic heart rate and respiration, and increased brain activity. The eeg trace shows irregular, fast low voltage waves (15-40hz) Also known as paradoxical sleep because the brain and other systems in the body are hyper-active while the muscles are immobilized. Rem = sleep behavioral disorder: has trouble staying paralyzed during sleep and are prone to living out with their dreams.