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Models
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A set of assumptions and concepts that help scientists exlain and interpret observations. Also called a paradigm.
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What is a neuron?
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A nerve cell
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What is a synapse?
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The tiny space between the nerve ending of one neuron and the dendrite of another
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What is a neurotransmitter?
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A chemical that, released by one neuron, crosses the synaptic space to be received at receptors on the dendrites of neighboring neurons
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What is the endocrine system?
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Endocrine glands, located throughout the body, work along with neurons o conrol such vital activities as growth, reporduction, sexual activity, heart rate, body temp, energy, and responses to stress
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What are hormones?
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The chemicals released by endocrine glands into the bloodstream
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What is a gene?
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Chromosome segments that control the characteristics and traits we inherit
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What are psychotropic medications?
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Drugs that primarily affect the brain and reduce many symptoms of mental dysfunctioning
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What is electroconvulsive therapy (ECT)?
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A form of biological treatment, used primarily on depressed patients, in which a brean seizure is triggered as an electric current passes through electrodes attached to the patient's forehead
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What is psychosurgery?
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Also called neurosurgery, brain surgery for mental disorders
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What is unconscious?
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Unavailable to immediate awareness
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What is the "id"?
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According to Freud, the psychological force that produces instinctual needs, drives, and impulses
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What is the "ego"?
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According to Freud, the psychological force that employs reason and operates in accordance with the reality principle
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What is the reality principle (Ego)?
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The knowledge we acquire through experience that it can be unacceptable to express our id impulses outright
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What are ego defense mechanisms?
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According to psychoanalytic theory, strategies developed by the ego to control unacceptable id impulses and to avoid or reduce the anxiety they arouse
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