socialpsychology101

socialpsychology101 - Physiological psych notes NOT social...

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Psy 313- Physiological Psychology 1/14/10 Animal Research: Ethical, or no? I believe that animals have about the same rights as humans. As one who puts ethical conduct for animals ahead of the curiosity of the human race, I can’t justify testing animals in ways which humans could not be tested. Their consent cannot be given, which makes it difficult to apply the same ethical standards required for humans (i.e. informed consent). Mind-brain relationship -Biological psychology is the study of the physiological and genetic basis of behavior -emphasis is placed on physiological, evolutionary and developmental mechanisms of behavior -a strong emphasis is placed upon brain functioning *Picture of the brain* -brain functioning can be explained at a more microscopic level in terms of neuron and glia activity. -biological explanations fall into 4 categories Physiological –emphasis on brain Ontogenetic-describes development of structure Evolutionary –evolutionary history Functional –why structure evolved as it did -issue: relationship between the mind and brain “mind-body” “mind-brain” problem -dualism= belief that there are different kinds of substances and the mind and body are separate entities Most common among non-scientists
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-monism= belief that universe is made up of one type of substance Materialism –everything that exists is physical Mentalism –only the mind truly exists Identity Position –mental processes are same as brain, but described in different ways (Tony Buchanan’s position) -explanations of the mind-body relationship do not answer certain questions (what creates consciousness?) -Chalmers (1995) proposes 2 problems Easy problems : differences in conscious states Hard questions : why and how brain activity is associated with consciousness Monitor brain activity when a stimulus is consciously detected Optical illusions can help with monitoring conscious decisions Animal Research -minimalists favor firm regulation on research -abolitionists posit that all animal testing is unethical Cc: The Cloned Cat -part of behavioral genetics How much do genes contribute? The Genetics of Behavior -Genes and environment both interact to shape human behavior -genes are like ingredients- what they make is dependent upon what you do with them -genes are basic units of heredity Twin studies can be used to infer how much genetics influence behavior
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Adopted children, resemblance to biological parents -estimates of hereditary influences are often prone to error Inability to distinguish between genetic and prenatal influences Environmental factors can activate or inactivate genes (epigenetics) -experiment Uterine position affects adult aggressive behavior Caused by sex hormones The mice sandwiched between two brothers were significantly more aggressive 1/21/10 The Nerve Impulse the myelin sheath is interrupted by nodes of ranvier-at these nodes ions are replenished saltatory conduction= “jumping” of the action potential from node to node provides rapid conduction of impulses
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This note was uploaded on 04/20/2011 for the course PSYCH 313 taught by Professor Buchanan during the Spring '09 term at Saint Louis.

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socialpsychology101 - Physiological psych notes NOT social...

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