2006
DOI: 10.1523/jneurosci.2567-06.2006
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Individual Differences in Amygdala Activity Predict Response Speed during Working Memory

Abstract: The human amygdala has classically been viewed as a brain structure primarily related to emotions and dissociated from higher cognition. We report here findings suggesting that the human amygdala also has a role in supporting working memory (WM), a canonical higher cognitive function. In a first functional magnetic resonance imaging (fMRI) study (n ϭ 53), individual differences in amygdala activity predicted behavioral performance in a 3-back WM task. Specifically, higher event-related amygdala amplitude predi… Show more

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Cited by 94 publications
(95 citation statements)
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References 52 publications
(59 reference statements)
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“…By virtue of its cortical and subcortical centers and its multiple interconnections (57,58), the reward-network is central to such functions as sensory processing, stimulus-reward associations and memory, and determination of mood (58,59,60). This system is strongly involved in executive functions and decision making (61), inhibition of perseverative behaviors (14), and initiating drug and alcohol abuse or relapse (1). In the present study, we used segmentation-based MRI morphometry to measure volumetric brain alterations in abstinent long-term alcoholic men.…”
Section: Discussionmentioning
confidence: 99%
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“…By virtue of its cortical and subcortical centers and its multiple interconnections (57,58), the reward-network is central to such functions as sensory processing, stimulus-reward associations and memory, and determination of mood (58,59,60). This system is strongly involved in executive functions and decision making (61), inhibition of perseverative behaviors (14), and initiating drug and alcohol abuse or relapse (1). In the present study, we used segmentation-based MRI morphometry to measure volumetric brain alterations in abstinent long-term alcoholic men.…”
Section: Discussionmentioning
confidence: 99%
“…In the present study, AL subjects displayed correlation between Working Memory and reward-network volume, and between amygdala volumes and General Memory. Left amygdala volumetric decrease may account for deficits in performance related to analytical aspects of memory, as well as verbal memory (14,102). Hippocampal and amygdala volume reductions were previously reported in alcoholics (22,55,56), and reduced amygdala volume was present in adolescents of high-risk alcoholism families, indicating a possible neurodevelopmental component (56).…”
Section: Topological Analyses In Amygdala and Hippocampusmentioning
confidence: 99%
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“…enhanced Skin Conductance, Heart Rate) and greater limbic activations (insula, amygdala or orbitofrontal cortex) in comparison with reappraisal [4,6,11,13]. However, as indicated by quite a few studies, the increased peripheral physiological and limbic area activations were not necessarily a result of emotional arousal [13,24]. These activations may also result from increased cognitive load during cognitive-demanding tasks such as working memory tasks [24,25], mental arithmetic task [26] or voluntary emotional suppression [13].…”
mentioning
confidence: 99%
“…Gray et al, 2002;Mitchell & Phillips, 2007;, Derakshan, Smyth, & Eysenck, 2009;Schaefer et al, 2006).…”
mentioning
confidence: 99%