Notes 1-17 - Abnormal Psychology Jan17 The Biological model...

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Abnormal Psychology Jan17 The Biological model Central Nervous system o Neurotransmitters, chemical messengers from one neuron to the next that impact our behavior o The area between the neurons is called a synapse o Most medications work at the synaptic level Nervous system o Central Talking about lower part of the brain including the medulla which is our breathing center Thalamus Frontal part of the brain Job to relay sensory information o Information about touch and vision o Important in sleep and attention difficulties Hypothalamus Problems with hypothalamus have difficulties with motivation, emotional regulation, eating and sleeping, sexual behavior, aggression Midbrain Reticular activation system Regulates attention and arousal Drugs that are repressants like alcohol, anti-anxiety medications affect the RAS causing a depressant effect o Combining anzioltics with alcohol people accidentally kill themselves because they slow the brain down so much that they stop breathing Hind brain Cerebellum o balance o Fine motor control Medulla o Breathing o Heart rate o Blood pressure Surface of the brain Cerebrum o Cognition o Thinking o Planning o Executive functioning
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People who have a hard time monitoring their behavior May not realize that they are getting in your space Initiating things Getting started on tasks Checking for careless mistakes Working memory Divided attention test Remember 6 4 3 7 = rote memory 7 4 3 2 1 say those backwards = working memory A 3 B 4 Z 7 L o Put numbers in order first then letters = working memory o Most head injuries affect the cerebrum o Peripheral Somatic nervous system Involved in transmitting information about sight, sounds, smells, the position of your body Autonomic nervous system Involved in anxiety disorders o The sympathetic nervous system kicks on more often o Sleep less, aroused more, tense muscles o To treat – teach relaxation techniques o Exercise = as effective as SSRIs in treating anxiety and depression Sympathetic o Involved in fight or flight response o Increased heart rate o Breathing becomes shorter o Body triggers stress response through the action of hormones Parasympathetic o Involved in the cooling off, relaxing, chilling out Neurotransmitters o Serotonin Involved in regulation of Mood Sleep Sexual activity Eating activity
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o Norepinephrine Mood Learning Memory o Dopamine Attention and arousal Thought processes Learning and memory Emotions or mood states o Acetylcholine Involves muscle contractions and memories Involved with alzheimer’s disease o GABA Gamma amino buteric acid Involved strongly with anxiety When people are anxious they have heightened arousal o Gaba is an inhibitor Biological psychiatry, or biological psychology o Biological model based on medical model Says that when someone has symptoms of a psychological issue
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This note was uploaded on 04/15/2008 for the course PSY 4343 taught by Professor Housson during the Spring '08 term at University of Texas at Dallas, Richardson.

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Notes 1-17 - Abnormal Psychology Jan17 The Biological model...

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