Citation

Miskovic V, Keil A. Soc. Cogn. Affect. Neurosci. 2014; 9(12): 1993-2000.

Affiliation

Correspondence should be addressed to: Vladimir Miskovic, Department of Psychology, State University of New York at Binghamton, Binghamton, NY 13902-6000, miskovic@binghamton.edu.

Copyright

(Copyright © 2014, Oxford University Press)

DOI

10.1093/scan/nsu013

PMID

24493849

Abstract

When organisms confront unpleasant objects in their natural environments, they engage in behaviors that allow them to avoid aversive outcomes. Here, we linked visual processing of threat to its behavioral consequences by including a motor response that terminated exposure to an aversive event. Dense-array steady-state visual evoked potentials were recorded in response to conditioned threat and safety signals viewed in active or passive behavioral contexts. The amplitude of neuronal responses in visual cortex increased additively, as a function of emotional value and action relevance. The gain in local cortical population activity for threat relative to safety cues persisted when aversive reinforcement was behaviorally terminated, suggesting a lingering emotionally based response amplification within the visual system. Distinct patterns of long-range neural synchrony emerged between the visual cortex and extravisual regions. Increased coupling between visual and higher-order structures was observed specifically during active perception of threat, consistent with a reorganization of neuronal populations involved in linking sensory processing to action preparation.

Language: en