GenPsy.Lec2.Biological - Biological Aspects Biological of...

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Unformatted text preview: Biological Aspects Biological of Behavior of General Psychology Biological Aspects of Behavior I. Neurons (nerve cells) A. Functions—send and receive messages B. Parts* 1. Soma (cell body) 2. Axon 3. Dendrites – Terminal buttons F02_04 Biological Aspects of Behavior C. Kinds of neurons* • 1. Sensory (afferent) • 2. Motor (efferent) • 3. Interneurons (associative) F02_12 Biological Aspects of Behavior II. How neurons communicate A. Electrical* • Ions • Resting potential • Action potential F02_05 F02_04 Biological Aspects of Behavior B. Chemical • Synapse* • Receptor sites • Neurotransmitter* – Excitatory effects – Inhibitory effects • Reuptake and enzymes Synapse F02_07 Biological Aspects of Behavior III. Types of neurotransmitters* Glutamate (excitatory) General excitatory- excites all the different neurons in the nervous system GABA (inhibitory) General inhibitory- alcohol or valium- decreases anxiety Dopamine Serotonin Effects mood and sleep- implicated in depression – SSRIs- selective serotonin reuptake inhibitors Effects Acetylcholine Associated with memory and learning Associated Endorphins Related to pain Norephinephrine T02_01 Biological Aspects of Behavior IV. The Nervous System* A. Peripheral nervous system (PNS) Somatic nervous system • Controls voluntary movement Autonomic nervous system* • Sympathetic nervous system • Parasympathetic nervous system • Controls automatic movements F02_10 F02_14 Biological Aspects of Behavior B. Central nervous system (CNS) 1. Spinal cord* 2. Brain A. hindbrain, midbrain, forebrain, A. cerebral cortex* cerebral B. Occipital lobe, parietal lobe, B. temporal lobe, frontal lobe* temporal C. Cerebral lateralization* F02_12 F02_15 F02_22 ...
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This note was uploaded on 04/18/2011 for the course PSYCH 101 taught by Professor Sabin during the Spring '09 term at Saint Louis.

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