Psychology 1000 Chapter Notes - Chapter 3: Limbic System, Avoidance Speech, Frontal Lobe

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

Psychology 1000 chapter 3 (biological foundations of behaviour) Bell & muller: specific nerve energy, speed of impulse. 9000 ft/min to 57 billion ft/sec: hemlholtz. The brain is a grapefruit sized mass of tissue, weighing about three pounds. The nervous system is built upon a cell called the neuron. They link within the system like how electronics are linked within a computer. The body contains about 100 billion neurons: the neuron contains three main parts; the cell body (soma), dendrites and an axon. The soma contains the structures that are required to keep the neuron alive as well as genetic information, determining how the cell develops and functions. Dendrites receive information (in the form of neurotransmitters) from other neurons and send them into the soma. Dendrites can receive information from up to 1000 or more neighbouring neurons. An axon conducts electrical information in the form of impulses to other neurons, muscles, glands, etc.