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Psychology (7,782)
PSYB65H3 (519)
Ted Petit (310)
Lecture

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Department
Psychology
Course
PSYB65H3
Professor
Ted Petit
Semester
Fall

Description
PSYB65 Lecture 1  Nervous system- CNS & PNS  CNS- consists of the brain and the spinal cord  PNS- everything else, nerves from spinal cord to the rest of the body (gather information or sends information out to control muscles)  Subdivision of the brain; Fore brain, Midbrain and Hindbrain  Hind brain- composed of the cerebellum (sensory motor integration- sends out messages to muscles for sensory information)  integrates sensory and motor information (standing takes both, damage to the cerebellum makes people have problems standing balance issues) in the core of the hindbrain is the medulla (responsible for basic life processes, keeping organisms alive heartbeat and respiration)  Midbrain- contains the reticular formation (controlling sleep wakefulness cycles circadian rhythms  wake up and fall asleep ) stroke in this area leads to a coma  Anterior towards the nose, posterior- towards the tail  Forebrain- contains the Thalamus (relay center info from the spinal cord is relayed forward to the newer part of the brain), Hypothalamus (controls life processes keeping individual alive over a long period of time important for eating behavior, drinking behavior, territoriality – fighting over territory critical resources  critical for survival for most animals, controls sexual behavior – finding a
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