Journal
EMOTION
Volume 6, Issue 2, Pages 239-245Publisher
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/1528-3542.6.2.239
Keywords
individual differences; impulsivity; amygdala; prefrontal cortex; response inhibition; fMRI
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The objective of the current Study Was to analyze the neural correlates of behavioral arousal and inhibitory control as they relate to individual differences ill via well-established functional MRI amygdala reactivity and prefrontal inhibitory control paradigms in healthy adult subjects. Impulsivity correlated positively with activity of the bilateral ventral amygdala. parahippocampal gyrus. dorsal anterior cingulate gyrus (BA 32). and bilateral Cuadate. Conversely, impulsivity correlated negatively with activity of the dorsal amygdala and ventral prefrontal cortex (BA 47). Together. these findings Suggest that dispositional impulsivity is influenced by the functional interplay of corticolimbic behavioral arousal and control circuits.
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