BIOLOGICAL PSYCHOLOGY

BIOLOGICAL PSYCHOLOGY - BIOLOGICAL PSYCHOLOGY The Nervous...

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BIOLOGICAL PSYCHOLOGY The Nervous System THE NEURON Dendrites -receive info Soma - cell body Nucleus (with Nucleolus) -contains DNA Axon -send message to next neuron Myelin -insulates (faster!) Axon Terminal -Contains pkgs of NT Neurtransmitters -chemical messangers (key) Receptors - receivers (locks) Action Potential Electrical message Carried by ions Polarized Depolarized Repolarized All or none within neuron Triggers NT reslease carried by ions
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Synaptic Transmission Synapse -space Packages - synaptic vesicles Neurotransmitter release Plugs into receptor Message complete Receptors Agonist ---causes action Anatagonist ---prevents action Bind NT or drugs Agonist Antagonist CNS= Brain and Spinal Cord Brain Cerebrum (Telencephalon= Neocortex, new) Cortex (Outer layer) Lobes Frontal Parietal Temporal Occipital Subcortical Structures
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Limbic System Amygdala Hippocampus Others Thalamus Hypothalamus Cerebellum Brain stem Spinal Cord FRONTAL PFC/Association "Personality" Strategy formation Associative learning Risk taking, rule breaking Motor inhibition Smell Motor Voluntary
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BIOLOGICAL PSYCHOLOGY - BIOLOGICAL PSYCHOLOGY The Nervous...

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