Improves consolidation mcgaugh 1996 reduces

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Improves consolidation (McGaugh 1996) ! Reduces forgetting for arousing stimuli (LaBar & Phelps 1998) ! Facial Expressions ! Anatomy of Emotion ! Fear ! Emotion and Memory ! Other Emotions Agenda
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Functional imaging is used to identify areas associated with different emotions Different (but overlapping) circuits are involved in different emotions
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Is there a difference between the cognitive and physical experiences of emotion? ! William James and Carl Lange (19 th century) argued that the autonomic response is equivalent to the emotion itself ! ± Somatic theories ² lost favor because ! Perceive fear before the symptoms occur (?) ! Generating response does not generate emotion (or does it?) ! Cognitive appraisal of the situation is key to emotion ! External response can be the same for different emotions (but…) A recent study of different forms of disgust shows different autonomic responses ! Recorded fMRI and heart and stomach autonomic responses during body-boundary violation (BBV) and ingestive disgust videos ! Different types of disgust elicited different peripheral responses, reflected in anterior insula activation differences ± These findings … support the hypothesis that central representations of organism physiological homeostasis constitute a critical aspect of the neural basis of feelings ² Harrison et al. The embodiment of emotional feelings in the brain. J Neurosci (2010) vol. 30 (38) pp. 12878-84
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Interoception and the insula Consequences of amygdala and insula damage to emotional evaluation
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The Iowa Gambling Task The Iowa Gambling Task
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The Iowa Gambling Task Summary ! Facial expressions evolved as a non-verbal, largely subconscious form of communication ! While early researches looked for a single ± emotion system ² , it probably doesn ³ t exist ! Fear is most studied emotion, relying on the Amygdala ! The Amygdala interacts with the memory system to affect long term memories ! Other emotions share some but not all of the same circuitry
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