PSYCH101 Chapter Notes - Chapter 3: Central Nervous System, Sympathetic Nervous System, Peripheral Nervous System

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH101
• Professor: Paul Wehr

Document Summary

Understand how the studies of split-brain patients reveal the workings of the brain. Apply your knowledge of brain regions to predict which abilities might be affected when a speci c area is injured or diseased. The central nervous system central nervous system (cns): consists of the brain and the spinal cord. Spinal cord receives information from the brain and transmits it back to the brain. Brain and spinal cord are critical for our survival. Ex. being scared by a stick that you think is a snake: Sympathetic nervous system increases your heart rate. Cns initiates a movement and sends an order down the spinal cord. Projects out from spinal nerves (pns) that in uence the activity of muscles. !1 source: an introduction to psychological science (krause et al. ) Sensory feedback (pns) from skin and muscles travels back to spinal cord (cns) Travels back up to brain (cns), realize it"s not a snake. Parasympathetic nervous system (pns) helps you calm down.