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Masked Presentations of Emotional Facial Expressions Modulate Amygdala Activity without Explicit Knowledge
TLDR
This study, using fMRI in conjunction with masked stimulus presentations, represents an initial step toward determining the role of the amygdala in nonconscious processing.
Meditation experience is associated with increased cortical thickness
TLDR
Between-group differences in prefrontal cortical thickness were most pronounced in older participants, suggesting that meditation might offset age-related cortical thinning, and data provide the first structural evidence for experience-dependent cortical plasticity associated with meditation practice.
Reduced caudate and nucleus accumbens response to rewards in unmedicated individuals with major depressive disorder.
TLDR
Results suggest that basal ganglia dysfunction in major depression may affect the consummatory phase of reward processing, and morphometric results suggest that anhedonia in major Depression is related to caudate volume.
Amygdala, Medial Prefrontal Cortex, and Hippocampal Function in PTSD
TLDR
Neuroimaging research reveals heightened amygdala responsivity in PTSD during symptomatic states and during the processing of trauma‐unrelated affective information and suggests diminished volumes, neuronal integrity, and functional integrity of the hippocampus in PTSD.
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