PSYCH 215 Lecture Notes - Lecture 4: Electroconvulsive Therapy, Psychosurgery, Neuroglia

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4 Feb 2017

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Models of Abnormal Behavior
Tuesday, January 31, 2017
2:34 PM
What are models of abnormal behavior?
Ways to come to understand abnormal behavior
Set of assumptions and concepts that help scientists explain and interpret observations
Influences what we observe, what we seek out and how we interpret what we observe
Models of Abnormal Behavior
A. Biological
B. Psychological
Psychodynamic, behavioral, cognitive, humanistic and existential
C. Sociocultural
Family and social multicultural
Biological Model
o What causes abnormal behavior from a bio perspective?
Brain anatomy and brain chemistry
Brain Anatomy
Composed of billions of (nerve cells) neurons and support cells called glial cells
Large group of neurons form distinct areas called brain regions
Caused by abnormalities in neurons'
Brain Chemistry
How Neurons communicate
Dendrite to axon to synapse to next neurons set of dendrites
Saratonin neurotransmitter associated with depression
Neurons communicate through the synapse
Use neurotransmitters (excitory and inhibitory)
Where do abnormalities come from?
Mutation of genes
Human Genome Project: map of genes in body
What was once adaptive is not any longer
People who had higher levels of anxiety were better in surviving a long time ago, but not as much today
Viral Infections
Early exposure may result in later abnormal behavior
Linked to mood psychotic disorders'
Medications that effect thought processes and emotions
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