Electrophysiological spatiotemporal dynamics during implicit visual threat processing

Bambi L. DeLaRosa, Jeffrey S. Spence, Scott K M Shakal, Michael A. Motes, Clifford S. Calley, Virginia I. Calley, John Hart, Michael A. Kraut

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Numerous studies have found evidence for corticolimbic theta band electroencephalographic (EEG) oscillations in the neural processing of visual stimuli perceived as threatening. However, varying temporal and topographical patterns have emerged, possibly due to varying arousal levels of the stimuli. In addition, recent studies suggest neural oscillations in delta, theta, alpha, and beta-band frequencies play a functional role in information processing in the brain. This study implemented a data-driven PCA based analysis investigating the spatiotemporal dynamics of electroencephalographic delta, theta, alpha, and beta-band frequencies during an implicit visual threat processing task. While controlling for the arousal dimension (the intensity of emotional activation), we found several spatial and temporal differences for threatening compared to nonthreatening visual images. We detected an early posterior increase in theta power followed by a later frontal increase in theta power, greatest for the threatening condition. There was also a consistent left lateralized beta desynchronization for the threatening condition. Our results provide support for a dynamic corticolimbic network, with theta and beta band activity indexing processes pivotal in visual threat processing.

Original languageEnglish (US)
Pages (from-to)54-61
Number of pages8
JournalBrain and Cognition
Volume91
DOIs
StatePublished - Nov 1 2014

Fingerprint

Arousal
Spatio-Temporal Analysis
Passive Cutaneous Anaphylaxis
Automatic Data Processing
Brain
Power (Psychology)
Threat
Oscillation

Keywords

  • Beta
  • Corticolimbic network
  • Electroencephalography
  • ERSP
  • Theta

ASJC Scopus subject areas

  • Cognitive Neuroscience
  • Experimental and Cognitive Psychology
  • Neuropsychology and Physiological Psychology
  • Arts and Humanities (miscellaneous)
  • Developmental and Educational Psychology

Cite this

DeLaRosa, B. L., Spence, J. S., Shakal, S. K. M., Motes, M. A., Calley, C. S., Calley, V. I., ... Kraut, M. A. (2014). Electrophysiological spatiotemporal dynamics during implicit visual threat processing. Brain and Cognition, 91, 54-61. https://doi.org/10.1016/j.bandc.2014.08.003

Electrophysiological spatiotemporal dynamics during implicit visual threat processing. / DeLaRosa, Bambi L.; Spence, Jeffrey S.; Shakal, Scott K M; Motes, Michael A.; Calley, Clifford S.; Calley, Virginia I.; Hart, John; Kraut, Michael A.

In: Brain and Cognition, Vol. 91, 01.11.2014, p. 54-61.

Research output: Contribution to journalArticle

DeLaRosa, BL, Spence, JS, Shakal, SKM, Motes, MA, Calley, CS, Calley, VI, Hart, J & Kraut, MA 2014, 'Electrophysiological spatiotemporal dynamics during implicit visual threat processing', Brain and Cognition, vol. 91, pp. 54-61. https://doi.org/10.1016/j.bandc.2014.08.003
DeLaRosa BL, Spence JS, Shakal SKM, Motes MA, Calley CS, Calley VI et al. Electrophysiological spatiotemporal dynamics during implicit visual threat processing. Brain and Cognition. 2014 Nov 1;91:54-61. https://doi.org/10.1016/j.bandc.2014.08.003
DeLaRosa, Bambi L. ; Spence, Jeffrey S. ; Shakal, Scott K M ; Motes, Michael A. ; Calley, Clifford S. ; Calley, Virginia I. ; Hart, John ; Kraut, Michael A. / Electrophysiological spatiotemporal dynamics during implicit visual threat processing. In: Brain and Cognition. 2014 ; Vol. 91. pp. 54-61.
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