Exam 1 Notes - Biopsychology Notes for Exam 1 Lecture 1...

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Biopsychology Notes for Exam 1 Lecture 1 Mind vs. Brain Mind- conscious thinking Brain- organ with physiological function Dualism- the mind and brain are fundamentally different and exist apart from one another Descartes: mind and body interacts at the pineal gland, ‘seat of soul’ Monism- mind and brain consist of the same physical substance The mind is brain activity Identity position Every mental experience is a brain activity even though descriptions are different Mental processes and brain processes are the same thing in different terms “Mind is brain activity” The mind emerges from organized brain structure and activity Emergent property position Early evidence supporting monism Brain damage results in a loss of mind Electrical stimulation of different parts of the brain result in different experiences Nature vs. Nurture Nature Instinctive behaviors Greylag goose egg-rolling behavior Imprinting (Young chicks following a man after birth) Selective breeding experiment Process of breeding animals for particular genetic traits Animals selectively bred passed their traits to their subsequent generations Bright vs. dull experiment Nurture Environmental variation Experiment by Kretch and Rosenzweig Bright and dull rats raised in an enriched environment made less maze errors Bright and dull rats raised in an impoverished environment made more maze errors Behavior can never be defined as entirely inherited or acquired Things such as personality, intelligence, behavioral tendencies etc. Evolution of Brain Brain size The larger the brain relative to the body weight, the more intelligent the animal Dolphins, chimp, humans have highly convoluted brains as opposed to smooth brains of less intelligent animals (rats)
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Rat vs. Human Brain Rat has a larger hippocampus and olfactory bulb than humans Reductionism The idea of understanding the world by examining the smaller pieces of it Brain and behavior Brain controls behavior Behavior changes the brain Brain Receives, processes, stores information, and produces behaviors Visualizations of the Nervous System Computerized tomography (CT scan) Used for structural viewing Produces cross-sectional images of the brain Uses ionizing radiation Magnetic Resonance Imaging (MRI) Used for structure viewing Creates contrast between different types of tissues Also creates cross-sectional images of the body fMRI (functional) 3-D view of the brain Used to view brain activity Measures change in blood flow in the brain or spinal cord Positron emission tomography (PET scan) Used to view brain activity Metabolic activity (biochemistry taking place in an organ) Electroencephalogram (EEG) Used to view brain’s electrical activity Lecture 2 Central nervous system Brain and spinal cord Peripheral nervous system
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This note was uploaded on 11/11/2010 for the course PSY 308 taught by Professor Jones during the Spring '08 term at University of Texas at Austin.

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Exam 1 Notes - Biopsychology Notes for Exam 1 Lecture 1...

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