NEURAL MARKERS OF EMOTION REACTIVITY AND COGNITIVE CONTROL FRONTAL OSCILLATORY ACTIVITY TO NEGATIVE AND POSITIVE STIMULI
| Author(s) | Gorgone, Alesandra | |
| Date Accessioned | 2018-09-27T18:52:35Z | |
| Date Available | 2018-09-27T18:52:35Z | |
| Publication Date | 2018-05 | |
| Abstract | Frontal theta-band oscillations (neural oscillatory activity occurring between around 4-8 Hz) ostensibly signal the need for and communicate top-down cognitive control across broad networks of brain regions (Cavanagh & Frank, 2014) and have been shown to increase in intensity during situations of conflicting stimulus-response demands, novel information, and the commission of errors (Cavanagh & Frank, 2014; Folstein & Van Petten, 2008). Because negative emotional states are thought to recruit relatively automatic cognitive control processes for the purpose of emotion regulation (e.g., Ochsner & Gross, 2005) and because previous work demonstrated that negative stimuli elicit greater frontal theta activity than neutral stimuli (Valadez & Simons, in preparation) it was hypothesized that both negative and positive emotional stimuli would induce increased low frontal electrophysiological activity (delta (1-4 Hz) & theta (4-8 Hz)) relative to emotionally neutral stimuli. Contrary to findings reported by Valadez and Simons (in preparation), frontal theta activity in response to negative stimuli was not significantly different from that in response to positive or neutral stimuli. Instead, frontal activity in the delta band was greater for negative stimuli relative to positive and neutral stimuli. Results suggest that frontal delta oscillations may be involved in processing potentially threatening stimuli (i.e., negative stimuli) and that theta activity may facilitate relatively automatic emotion regulation when stimuli are arousing but not perceived as a threat (i.e., positive stimuli). Future directions and potential clinical implications are discussed. | en_US |
| Advisor | Robert Simons | |
| Program | Psychology | |
| URL | http://udspace.udel.edu/handle/19716/23849 | |
| Publisher | University of Delaware | en_US |
| Keywords | Psychology, neural markers, frontal oscillaroty activity | en_US |
| Title | NEURAL MARKERS OF EMOTION REACTIVITY AND COGNITIVE CONTROL FRONTAL OSCILLATORY ACTIVITY TO NEGATIVE AND POSITIVE STIMULI | en_US |
| Type | Thesis | en_US |