Pitt PSY 0010 - Biopsychology (7 pages)

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PSY 0010 1nd Edition Lecture 4 Outline of Last Lecture I Correlation a Correlation Coefficient b Correlation and Causation II Experiments III Surveys Outline of Current Lecture II Biopsychology a CNS b PNS III Neurons IV Neurotransmitters V Brain Current Lecture Biopsychology Phrenology o Franz Gall 1800 developed this theory o If you read the bumps on someone s skull you can tell where parts of someone s personality was controlled These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Neuroscience o Study of neural structures behavior and learning o Nervous systems 1 Central nervous system 2 Peripheral nervous system Central Nervous System Brain Spinal cord o Takes responsibility for some reflexes reflexes o automatic responses that occur without involving the brain Motor Neurons o Carrying outgoing information from CNS to muscles and glands Sensory Neurons o Take information from senses can carry information to the central nervous system Reflex Arc o Three types of neurons 1 Afferent neurons sensory 2 Efferent neurons motor 3 Interneurons receive information from sensory neurons and transmit them to the motor neurons Nerves o Part of peripheral nervous system o Connect muscles glands and sense organs to the CNS Peripheral Nervous System 1 Autonomic o a Sympathetic Arousing Fight or flight o b parasympathetic calming rest and digest 2 Somatic Neurons Dendrites o Capable of receiving messages from other cells Soma o Maintains the health of the cell Axon o Where electrical impulses are generated o Cause neuron to process information Myelin sheath o Sheaths that cover the axon fatty substances o Provide insulation o Allow neuron to work faster facilitate speed of neurotransmission Axon terminal o The end of the axon o where chemicals are sent out into the space between this neuron and other neurons as a result of the electrical impulses Glial Cells o Attendants to neurons