Convergent individual differences in visual cortices, but not the amygdala across standard amygdalar fMRI probe tasks.

ABSTRACT: The amygdala (AMG) has been repeatedly implicated in the processing of threatening and negatively valenced stimuli and multiple fMRI paradigms have reported personality, genetic, and psychopathological associations with individual differences in AMG activation in these paradigms. Yet the interchangeability of activations in these probes has not been established, thus it remains unclear if we can interpret AMG responses on specific tasks as general markers of its reactivity. In this study we aimed to assess if different tasks that have been widely used within the Affective Neuroscience literature consistently recruit the AMG.

Method

Thirty-two young healthy subjects completed four fMRI tasks that have all been previously shown to probe the AMG during processing of threatening stimuli

SUBMITTER: Villalta-Gil V 

PROVIDER: S-EPMC5322185 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature