Psychology 1000 Lecture Notes - Phineas Gage, Acetylcholine, Paroxetine

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

Document Summary

A spike was propelled through the face and head of phineas gage. His physical health was good, and he recovered. The equilibrium between his intellectual faculties and animal propensities had been destroyed. Specialized nerve cells that are linked together in circuits. Supported by glial cells surround neurons and hold them in place, make nutrient chemicals, form the myelin sheath around some axons, and absorb toxins & waste materials. Blood-brain barrier prevents many substances and toxins from entering the brain. Neurons: generate electricity and release chemicals, surrounded by cell membrane, surrounded by a salty liquid environment (positively charged) inside is negatively charged. Action potential: nerve impulse a sudden reversal in the neuron"s membrane voltage (moves from -70mv to +40mv) When dendrites or cell body of a neuron are stimulated by axons from other neurons, small shifs occur in cell membrane"s electrical potential.