Chapter 2 Review - Neuroscience and Behavior Why Biology?...

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Neuroscience and Behavior Why Biology? Phrenology Bio-psycho-social systems Neurons Draw a diagram of the neuron and a synapse with these parts labeled: cell body dendrites axon myelin sheath axon terminal vesicles receptor site neurotransmitters Action potentials Synaptic Transmission Neurotransmitters are released from axon terminal From vesicles o Excitatory v. Inhibitory: o Threshold o All-or-none property Neurotransmitters o Norepinehprine o Dopamine o Serotonin o Endorphins o GABA o Ach Botulin
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Curare Black widow venom Drugs & Drug Interactions o Tolerance & withdrawal o Agonist o Antagonist o Blood-brain barrier Nervous System Organization Peripheral – (PNS) o Somatic (skeletal) Sensory, motor & inter-neurons o Autonomic Sympathetic Parasympathetic Central – (CNS) o reflexes Brain o Methods of Study early methods of study clinical observations stimulation lesioning EEG CT Scan PET Scan MRI
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f MRI o Brainstem Medulla Reticular formation Thalamus Cerebellum o Limbic System o Hypothalamus o Amygdale o hippocampus Cerebral cortex o Hemispheres Glia or glial cells o Corpus callosum Cortical functions Motor cortex Sensory cortex o Association areas Language areas Brocas Area
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Wernicke’s Area o Frontal lobe o Parietal lobe o Temporal lobe o Occipital lobe Brain Plasticity Hemispherectomy Lateralization & Specialization o Handedness Endocrine System Glands Adrenal Pituitary Hormones Adrenalin/Epinephrine Noradrenalin/norepinephrine Pituitary gland – master gland Controlled by hypothalamus – which is part brain, part gland
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Review Questions – Biological Bases of Behavior 1. Explain why psychologist are concerned with human biology. 2. Explain why, at every level, our existence is both part of a larger system and a combination of smaller systems. 3. Describe the structure of a neuron and the process by which an action potential is triggered. 4. Describe how nerve cells communicate and discuss the importance of neurotransmitters for human behavior. 5. Discuss the significance of endorphins and explain how drugs influence neurotransmitters. 6. Draw and label the major parts (4) of a neuron. 7. Outline the sequence of reactions that occur when a neural impulse is generated and transmitted from one neuron to another.
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8. Identify the major divisions of the nervous system and their primary functions, and describe the neurons that carry information throughout the system. 9. Describe the operation of the reflexes in the spinal cord and neural networks in the brain. 10. Describe and explain the sequence of physical reactions that occur in the body as an emergency is confronted and then passes. 11.
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This note was uploaded on 08/18/2011 for the course PSY 301 taught by Professor Pennebaker during the Spring '07 term at University of Texas at Austin.

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Chapter 2 Review - Neuroscience and Behavior Why Biology?...

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