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10 Cards in this Set
- Front
- Back
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procedures
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(1) participants scanned with fMRI during encoding and 1 yr. later during retrieval.
(2) First, participants were scanned while rating 120 emotional (pleasant/unpleasant) pictures and 60 neutral pictures. *This was incidental learning task, as participants were unaware that they would be doing retrieval task. (3) 45 mins after scanning session, participants did cued recall task w/ fMRI. (4) 1 yr. later, participants scanned with fMRI while recognizing old and new pics. Participants pressed a key to indicate "remember", "know" (indicating belief that pic was seen during encoding session but without specific details), or "new". |
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participants
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9, young, right handed, women.
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results
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(1) 1 yr after initial encoding, emo arousing pics were remembered better and elicited greater recollection than neutral pics.
(2) emo content enhanced activity in the AMY and MTL memory systems related to successful retrieval of individual items from long-term storage (hits v misses) (3) emotion enhancing effect during retrieval was greater for R than for K responses in AMY and hippocampus, but not EC entorhinal cortex. |
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take away
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(1) Emo arousing stimuli are remembered better than neutral stimuli, and this memory enhancing effect affected recollection rather than familiarity.
(2) Functional neuroimaging results showed that emotion enhances successful retrieval activity in AMY and MTL memory system, and that in the AMY and the HC, the emotion effect is greater than for recollection than for familiarity. |
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encoding
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the creation of new memory traces.
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consolidation
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stabilization and persistence of memory traces.
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retrieval
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final access to stored memory traces.
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How did recognition memory differ for the neutral and emotional stimuli?
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Recognition memory was better for emotional stimuli than for neutral stimuli.
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How did activity in the amydala, hippocampus, and entorhinal cortex differ for emotional and neutral pictures?
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Compared to neutral pics, when emotional pics were shown, enhanced activity in the AMY, HC, and EC were evident.
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How did emotional and neutral pictures differ in the sense of recollection they elicited?
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The emotion-enhancing retrieval effect was greater for R (recollection, aka “remember” response) than for K (familiar, aka “know”) responses.
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