PSY 205 Lecture Notes - Lecture 3: Nasal Spray, Mirror Neuron, Reuptake

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8 Feb 2017
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PSY 205
1/31/17
Lecture 3 Chapter 3
Biological psychology the study of the connection between biology and behavior
Biology behind behavior
o The nervous system is living tissue composed of cells
Neurons nerve cells that receive, integrate, & transmit info
Glia
Types of neurons:
o Sensory (afferent) neurons
Carry messages from sense organs spinal cord or brain
o Motor (efferent) neurons)
Carry messages from the spinal cord or brain muscles and glands
o Interneurons
o Mirror neurons rai irrors the ovement it sees (monkey see monkey do)
Structure of a neuron
o Dendrites
o Soma
o Axon
o Myelin sheath what occurs when myelin layer is destroyed?
o Terminal buttons
o Synapse
Communication between neurons
o Neurotransmitters are chemicals that transmit information from one neuron to
another
NT’s are fudaetal to ehaior
Types of Neurotransmitters:
o Serotonin sleep, mood, hunger
Low: depression
High: OCD
o Endorphins pain relief and response to stress, pleasure
orphie ithi
o Dopamine pleasurable emotions, voluntary movement
Lo: Parkiso’s
High: Schizophrenia
o Acetylcholine (Ach) voluntary movement (allows us to move), attention,
memory
Deterioration of Ach-producing neurons marks what disease?
Alzheier’s disease
o Norepinephrine arousal and mood
Low: ADHD, depression
o Oxytocin the loe horoe that ats like a eurotrasitter i the rai
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