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Neuroscience and Behavior

by: Joseph Campisi

Neuroscience and Behavior PSY 150

Joseph Campisi
GPA 3.57

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About this Document

Introductory lecture to neuroscience and behavior. Covers all parts of the brain, and the nervous system.
General Psychology
Class Notes
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This 4 page Class Notes was uploaded by Joseph Campisi on Thursday September 8, 2016. The Class Notes belongs to PSY 150 at Western Carolina University taught by Achee in Fall 2016. Since its upload, it has received 5 views. For similar materials see General Psychology in Psychology (PSYC) at Western Carolina University.


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Date Created: 09/08/16
­ Neurons are what allow us to function in general ­ 3 parts of a nerve cell ­ Soma (cell body) ­ Dendrites (Things on the cell body) ­ Axon (tail) ­ Terminal Buttons at the end  ­ Synaptic gap where the transmission happens ­ Conduction ­ What happens in the neuron, electrical ­ Transmission ­ Information passed between neurons, chemical ­ Neurons work together in circuits or pathways to let information oath ­ Works almost like dominos ­ Neurons work together in a systematic organized way, will not interact unless the ends match ­ The entire network is called the nervous system ­ Conveys electrochemical information through the body ­ Nervous System ­ Central Nervous System ­ Brain and spinal cord ­ Sends commands to the skeletal  and muscular system ­ Peripheral Nervous System ­ Connects central nervous system to everything ­ Somatic Nervous System ­ Set of nerves that conveys  information between voluntary muscles and central nervous  system ­ Conscious control ­ Example: Reaching for a cup of  coffee ­ Autonomic Nervous system ­ A set of nerves that carries the  involuntary and automatic commands that control blood, organs  and glands ­ You cannot control this system  actively ­ Works to regulate body systems ­ Sympathetic Nervous system ­ Set of nerves that  prepared your body for action in challenging or threatening situations ­ Fight or flight ­ Dilated pupils,  increased heart rate, redirects blood flow to brain and  muscles, activates sweat ­ Increases the  likelihood of escaping a threatening situation ­ Parasympathetic Nervous system ­ Helps the body return to a normal resting state ­ Once you have  survived the dangerous situation, the body returns to its  previous state ­ Reverses actions of  SNS ­ Brain has sections ­ Complex functions are formed at higher levels ­ Basic functions are formed at lower levels ­ Hindbrain ­ Connects to the spinal cord ­ Controls breathing, alertness, motor skills ­ Has structures  ­ Medulla ­ Coordinates heart  rate, circulation, respiration ­ Reticular Formation ­ Regulates sleep,  wakefulness, levels of arousal ­ Anesthesia reduces  the function of this ­ Cerebellum ­ Controls fine motor  skills ­ Orchestrates  sequential movement ­ Fine tunes movement ­ Pons ­ Relays information  from the cerebellum to the rest of the brain ­ Details of the  functioning of the pons are poorly understood ­ Midbrain ­ 2 main structures ­ Tectum ­ Tegmentum ­ Used to understand your environment ­ Know where a sound comes from ­ Forebrain ­ Highest level of brain and cognitive processing ­ Controls complex cognitive, emotional, sensory and motor functioning ­ 2 main divisions ­ Cerebral Cortex ­ Subcortical Structures ­ Thalamus ­ Receiv es input from all major senses except smell ­ Activel y filters information and weights it ­ Inhibits transmission of sensory information during sleep ­ Hypothalamus ­ Regula tes body temp, hunger, thirst, sexual behavior,  feelings of aggression or pleasure ­ Stimul ation can lead to overeating, lack of eating,  aggressive behavior ­ Pituitary Gland ­ Master gland of hormone producing system: releases  hormones that direct the functions of other glands  in the body ­ Stress response ­ Sense  a threat, sensory neurons signal the  hypothalamus,which stimulates the release of  adrenaline ­ Limbic System ­ Group  of structures that relate to motivation, emotion,  learning and memory ­ Hippoc ampus ­ C reates new memories ­ Amygd ala ­ C entral to emotional processes, particular the formation of emotional memories ­ A ttaches emotions to memories ­ Basal  ganglia ­ D irects intentional movements ­ L ack of functioning leads to lack of  coordination (think parkinsons) ­ Cerebral Cortex ­ Highest level of the  brain ­ Has 4 lobes ­ Sits on the rest of the  brain like a cap ­ Gyri are the smooth  sections ­ Sulci are the wrinkles


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