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Biological Approach II

Biological Approach II - Biological Approach II Biological...

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Biological Approach II Biological Structures/Systems and Personality Chapter 8 Roadmap: Studying the Brain Three Factor Model – Quick review Eysenck: Extraversion & Neuroticism Gray: BAS & BIS Davidson: Lateralization of Prefrontal Cortex Neurotransmitters Strengths and Weaknesses of Approach Studying the Brain Brain Damage Studies o Lesions Rats o Case Study - Phineus Gage Gage was a railroad construction foreman An 1848 explosion forced a steel tamping rod through his head Others said he was “…no longer Gage...” Lost his job, worked as a sideshow exhibit Brain Stimulation – (Bejjani et al., 1999) – depressed symptoms – Brain Imaging – o Observe it’s function directly EEG, PET Scans, fMRI, etc. Three Factor Model -Recall – Positive Temperament o Willingness to engage environment Negative Temperament o Seeing the world as threatening, problematic Disinhibition vs. Constraint o Tendency to behave impulsively vs. controlled
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