The Arousal Spectrum HD

Learn the essentials of psychopharmacology from Dr. Stephen Stahl! This clip from Stahl’s Essential Psychopharmacology, Video Edition covers how key neurotransmitters influence the arousal spectrum. Learn more: https://nei.global/epvideos One’s state of arousal is more complicated than simply being “awake” or “asleep.” Rather, arousal exists as if on a dimmer switch, with many phases along the spectrum. Where on the spectrum one lies is influenced by several key neurotransmitters: histamine, dopamine, norepinephrine, serotonin, and acetylcholine, as well as GABA and orexin (not shown). When there is good balance between too much and too little arousal [depicted by the gray (baseline) color of the brain], one is awake, alert, and able to function well. As the dial shifts to the right there is too much arousal, which may cause hypervigilance and consequently insomnia at night. As arousal further increases this can cause cognitive dysfunction, panic, and in extreme cases perhaps even hallucinations. On the other hand, as arousal diminishes individuals may experience inattentiveness, cognitive dysfunction, sleepiness, and ultimately sleep. About: In Stahl’s Essential Psychopharmacology: Video Edition, the newly published fifth edition of the landmark textbook comes to life as Dr. Stahl himself presents every chapter with fully animated illustrations. Learn more: https://nei.global/epvideos Stay updated with email alerts: https://nei.global/updates Copyright © Neuroscience Education Institute. All rights reserved. Interested in more Psychopharmacology? Check out the NEI Master Psychopharmacology Program: https://nei.global/mpp Follow us on Facebook: https://nei.global/facebook Follow us on LinkedIn: https://nei.global/linkedin Follow us on Twitter: https://nei.global/twitter Listen to the NEI Podcast! Spotify: https://nei.global/podcastspotify Apple Podcast: https://nei.global/podcastapple Podcast Website: https://nei.global/podcast