CAS PS 101 Lecture Notes - Lecture 5: Neuropsychological Test, Somatic Nervous System, High Tech

• School: Boston University
• Department: Psychological & Brain Sciences
• Course: CAS PS 101
• Professor: Tracy Dunne

Document Summary

Ps101-lecture 5-neurotransmitters, the nervous system, and brain imaging. If you have enough serotonin, you feel content. Depression is often a result of decreased serotonin levels. During depression, drives change too as a result of this decrease. Plays a role in learning and memory. Example: if given instructions, you are able to remember the order of the steps and keep the information straight. Parkinson"s disease is a direct result of low dopamine levels, hence why those affected have difficulty with voluntary movements (i. e. walking) Marijuana and cocaine are addictive because they stimulate the dopamine reward pathway. Low levels lead to lack of focus on work or lack of motivation to do simple tasks like showering. Adhd can be caused by low norepinephrine levels. Carry input messages from sensory organs to spinal cord and brain. Transmit messages from brain and spinal cord to muscles and organs. Make mental functions, behaviors, and emotions possible. Sensory neurons transmit messages from sense organs.