PSC 162 - Exam 2 - Anatomy of Personality Chapter 8 What...

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Anatomy of Personality; Chapter 8 • What is the role of the amygdala in personality and behavior? - Links perceptions and thoughts with emotional meaning - Plays a role in negative and positive emotions - Has a role in assessing whether a stimulus is threatening, or rewarding - Relevant traits include anxiety, fearfulness, sociability, sexuality, optimism, extraversion, and neuroticism • What is the role serotonin plays in personality? - Role in inhibition of behavioral impulses - Prozac: SSRI that increases serotonin levels - Controversial, however has positive effects - Changes in personality: more extraverted, less neurotic - Makes negative emotions less severe and doesn’t affect positive • What is the role dopamine plays in personality? - Involved with responding to reward and approaching attractive objects and people - Related to sociability, general activity level, and novelty seeking - Lack of dopamine is correlated to Parkinson’s Disease • What are the roles oxytocin and cortisol play in stressful situations? - Oxytocin (Hypothalamus) - Role in mother-child bonding, romantic attachment, and sexual response - Decreases fearfulness - Facilitates approach behaviors - Cortisol (Adrenal Gland)
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