In exogenous attention, time is the clue: Brain and heart interactions to survive threatening stimuli.

ABSTRACT: The capture of exogenous attention by negative stimuli has been interpreted as adaptive for survival in a diverse and changing environment. In the present paper, we investigate the neural responses towards two discrete negative emotions with different biological meanings, disgust and fear, and its potential relationships with heart rate variability (HRV) as an index of emotional regulation. With that aim, 30 participants performed a digit categorization task while fear, disgust and neutral distractor pictures were presented. Resting HRV at baseline, behavioral responses, and event-related potentials were recorded. Whereas P1 amplitudes were highest to fear distractors, the disgust stimulation led to augmented P2 amplitudes compared to the rest of distractors. Interestingly, increased N2 am

SUBMITTER: Ruiz-Padial E 

PROVIDER: S-EPMC8115771 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature