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Chapter 3

Human Brain - Chapter 3.docx

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Ted Petit

Chapter 3Techniques in Neuropsychology MODULE Study of Damaged Nervous System The Scientific Mindbrain and beh can be investigated in at a variety of complexities and time scales which depend primarily on the question that is being investigatedsome questionsminutiae of their properties others by their nature scientific methodobjective and replication or confirmation of results standardized tests and measurementsempirical method replication so initial results did not occur by chance and generalizablebest term to describe the scientific methodcontrolo refers to the ability to manipulate something of interest and determine its effects o the ability to exclude unwanted variable confounding variables o appropriate comparison sample so deviations can be observed hypothesis directs the research statement that can be rejected o eliminates vague question o avoids questions that cannot be disproved independent manipulated and dependent variables response behmuch of research in neuropsychology is quasiexperimentalethically and practically we cannot manipulate the independent variable directly may be few of the kinds of people we want to see man confounding varcannot rely on single experiment for conclusions we rely on convering operationsa common conclusion is reached by examining aof studies that approach the question in a variety of diff perspectives if consensusconfident we have learned an imp feature Nonhuman Animal Models 193065 dominated by the study of white lab rats assumption that there are minimal basic diff btwn most mammalsnonhuman studiesallowed to control all of the aspects of the life cycle o greater objectivity and precision that is not in human experimentsnow know imp diff among species which also tells us something reduces variability that is attributable to extraneous variablesallows for random selection can isolate causal conclusions examination of discrete lesions insight into relationship brain and beh Tinbergimprinting and that of Diamond effects on enriched enviroteratogenicbeh effects of alcohol was first done in nonhuman animals limitationsfocus on one facet of the organism and ignore the others o delayed nonmatching to sample taskafter observing reqrd paired with stimulus A then one is required to pick a novel stimulus to receive the reward o ethological validity do animals exhibit this beh in natural settingo tasks may be so noveldo not provide info on real world func
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