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19 Cards in this Set
- Front
- Back
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Dabbs hypothesis
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testosterone cause of rambunctiousness behavior
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Dabbs conclusion
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fraternities with higher average testosterone levels tended to be more rambunctious; rambunctious had more parties, lower GPA, fewer award, less smiling, and were more likely to ignore letters and phone calls
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Explanations for Dabbs conclusion
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higher testosterone leads to rambunctiousness; being around rambunctiousness raises testosterone levels; males higher in testosterone drawn to rambunctious fraternities
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The way that rambunctiousness in fraternity determined
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help of interfraternity council, number of rule violations, observations, studiousness
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Smiling and aggressiveness
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smiling generally thought to be a sign of friendliness and submissiveness; women smile more than men
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Reason Canli article is groundbreaking
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first article to look at how personality traits are seen in the brain
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commonly thought relationship between E, N and affect (Canli)
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E -> positive affect (happiness)
N -> negative affect (sadness) |
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difference between E, N and affect (Canli)
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personality and affect are dissociable constructs because personality is more stable than affect which is more affected by the environment; moods change over time
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affect
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feeling
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amygdala activation in extraverts (Canli)
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greater amygdala activation to positive stimuli
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amygdala activation in neurotics (Canli)
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greater amygdala activation to negative stimuli
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limitations of Canli study
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fMRI debate over whether amygdala activation represents inhibitory neural activity or excitatory neural activity; hard to determine statistical significance; looked at broad aspects of E & N, not specific aspects of E & N
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emotional stroop test
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identify color in which each word was printed by pressing key on button box; uses positive, neutral and negative words
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anterior cingulate (related to attention) activation in Extraverts
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greater anterior cingulate activation to positive pictures
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dot probe task
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search for items under positive, negative or neutral stimuli; measures fusiform gyrus which is important in visual searching
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fusiform gyrus
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located in right, front of brain; related to visual searching
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fusiform gyrus activation in dot probe test for Extraverts (Canli)
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significantly greater activation as a function of E when behind neutral instead of positive stimuli; also, greater activation when behind negative stimulus than behind neutral stimulus
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importance of brain imagery (Canli)
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can help us understand the relationship between personality and genetics; "imaging genomics" how allele variations are associated with individual differences in brain activation
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Studies conducted by Canli
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- viewing emotional scenes and measuring amygdala with fMRI
- viewing emotional faces and measuring amygdala with fMRI - emotional stroop test measuring anterior cingulate - dot probe test measuring fusiform gyrus |
