models_lec

Models_lec - MODELS OF ABNORMAL BEHAVIOR I(1 GENETICS BIOLOGICAL MODELS(2 ENDOCRINE(HORMONAL SYSTEM(3 BRAIN STRUCTURES Cortex Frontal lobes

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MODELS OF ABNORMAL BEHAVIOR I. BIOLOGICAL MODELS (1) GENETICS (2) ENDOCRINE (HORMONAL) SYSTEM (3) BRAIN STRUCTURES * Cortex: - Frontal lobes - Temporal lobes * Limbic System: - Amygdala - Hippocampus - Thalamus - Hypothalamus - Cingulate gyrus - Basal ganglia (4) BIOCHEMISTRY (esp. neurotransmitters) NEUROTRANSMITTERS (NT) Norepinephrine - A very general NT, its function depends on where in the brain it occurs - Flight-or-fight response: alarm response of ANS Serotonin - Mood - Sleep - Regulation of impulses (e.g., aggressive behaviors, self-destructive tendencies, suicidal urges, obsessive-compulsive behaviors. - Lower serotonin levels are associated with greater vulnerability to the above
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- Outgoing, exploratory behavior - All pleasure seeking behaviors (incl. addictions) involve the dopamine systems - Excess of dopamine in the brain can cause hallucinations and delusions Gaba - Inhibitory neurotransmitter, reduces overall arousal - Benzodiazepines (like Valium) facilitate the action of GABA BIOLOGICAL FORMS OF TREATMENT Psychotropic Medications work by: * Increasing or decreasing the production of a NT * Triggering or blocking the release of a NT * Increase or decrease the production of a substance that deactivates the NT * Trigger or block the release of a substance that deactivates the NT * Block the reuptake of a NT (e.g., Prozac blocks the reuptake of Serotonin) * Mimic the action of a neurotransmitter Psychotropic Medications, main classes: * Antianxiety drugs * Antidepressants * Mood stabilizers (textbook: “anti-mania drugs”) * Antipsychotic drugs * Stimulant Drugs Other forms of biological treatment
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This note was uploaded on 07/16/2009 for the course PSC 168 taught by Professor Zane during the Fall '07 term at UC Davis.

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Models_lec - MODELS OF ABNORMAL BEHAVIOR I(1 GENETICS BIOLOGICAL MODELS(2 ENDOCRINE(HORMONAL SYSTEM(3 BRAIN STRUCTURES Cortex Frontal lobes

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