Class3_Biological+Psychology+I

Class3_Biological+Psychology+I - Psyc 1101 Biological...

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Unformatted text preview: Psyc 1101 Biological Psychology I May 25, 2010 Class Outline Review Research Method Issues History of Localization of Brain Functions Brain Anatomy Neurons Neurotransmitters Clarification on Correlations Correlation: Quantification of the degree to which two variables are related. The Correlation coefficient (r) has no units of measurement. Descriptive Statistic If r > 0, positive relationship If r < 0, negative relationship If r = 0, No relationship r = .00 r = .65 r = .85 r = -.65 Class Outline Review Research Method Issues History of Localization of Brain Functions Brain Anatomy Neurons Neurotransmitters History of Localization of Brain Functions 2 Questions: What is the relationship between the mind and the brain? What is the relationship between different behaviors and different brain areas? What is relationship between our mind and body Are our conscious experiences independent of the biology of the brain? Men ought to know that from nothing else but the brain come joys, delights, laughter, sports, and sorrows, griefs, despondency and lamentation. And by this, in an especial manner, we acquire wisdom, knowledge, and see and hear and know what are foul and what are fair, what are bad and what are good, what are sweet and what are unsavoryAnd by the same organ we become mad and delirious, and fears and terrors assail usAll these things we endure from the brain when it is not healthy-Hippocrates (460-370 B.C) But..Subject Matter Leads to Philsopsophsing Dualism: Mind and brain are 2 distinct mechanisms Monoism: Mind is a phenomenon produced by the workings of the nervous system. Ren Descartes (1596-1650) The body as a machine: functions of the body can in principle be explained in purely mechanistic terms. Concept of the nervous system as a set of hydraulic pipes. Brain matter less important than the ventricles Not entirely true but an important start Localization of Function? Are mental processes located in the brain and can these be further localized? 1. Flourens and Experimental Ablation 2. Phineas Gage 3. Paul Broca 4. Modern Imaging Flourens and Experimental Ablation (1794-1867) A large section of the cerebral lobes can be removed without loss of function. As more is removed, all functions weaken and gradually disappear. Thus, the cerebral lobes operate in unison for the full exercise of their function Ablation: surgical lesioning technique No changes in higher cognitive processes Size more important than location Problems with Ablation...
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Class3_Biological+Psychology+I - Psyc 1101 Biological...

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