PMID- 37457498 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230718 IS - 1662-5161 (Print) IS - 1662-5161 (Electronic) IS - 1662-5161 (Linking) VI - 17 DP - 2023 TI - Conflict and control in cortical responses to inconsistent emotional signals in a face-word Stroop. PG - 955171 LID - 10.3389/fnhum.2023.955171 [doi] LID - 955171 AB - Social communication is fraught with ambiguity. Negotiating the social world requires interpreting the affective signals we receive and often selecting between channels of conflicting affective information. The affective face-word Stroop (AFWS) provides an experimental paradigm which may identify cognitive-affective control mechanisms underpinning essential social-affective skills. Initial functional magnetic resonance imaging (fMRI) study of the AFWS identified right amygdala as driving this affective conflict and left rostral anterior cingulate cortex (rACC) as the locus of conflict control. We employed electroencephalogram (EEG) and eLORETA source localization to investigate the timing, location, and sequence of control processes when responding to affective conflict generated during the AFWS. However we designated affective word as the response target and affective face as the distractor to maximize conflict and control effects. Reaction times showed slowed responses in high vs. low control conditions, corresponding to a Rabbitt type control effect rather than the previously observed Grattan effect. Control related activation occurred in right rACC 96-118 ms post-stimulus, corresponding to the resolution of the P1 peak in the Visual Evoked Potential (VEP). Face distractors elicit right hemisphere control, while word distractors elicit left hemisphere control. Low control trials require rapid "booting up" control resources observable through VEPs. Incongruent trial activity in right fusiform face area is suppressed 118-156 ms post stimulus corresponding to onset and development of the N170 VEP component. Results are consistent with a predicted sequence of rapid early amygdala activation by affective conflict, then rACC inhibition of amygdala decreasing facilitation of affective face processing (however, amygdala activity is not observable with EEG). CI - Copyright (c) 2023 Jamieson, Page, Evans and Hamlin. FAU - Jamieson, Graham A AU - Jamieson GA AD - School of Psychology, University of New England, Armidale, NSW, Australia. FAU - Page, Julia AU - Page J AD - School of Science and Technology, University of New England, Armidale, NSW, Australia. FAU - Evans, Ian D AU - Evans ID AD - Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW, Australia. FAU - Hamlin, Adam AU - Hamlin A AD - School of Science and Technology, University of New England, Armidale, NSW, Australia. LA - eng PT - Journal Article DEP - 20230630 PL - Switzerland TA - Front Hum Neurosci JT - Frontiers in human neuroscience JID - 101477954 PMC - PMC10349396 OTO - NOTNLM OT - N170 OT - affective Stroop OT - affective control OT - amygdala OT - eLORETA OT - fusiform face area OT - rostral ACC COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2023/07/17 06:42 MHDA- 2023/07/17 06:43 PMCR- 2023/01/01 CRDT- 2023/07/17 04:39 PHST- 2022/05/28 00:00 [received] PHST- 2023/05/09 00:00 [accepted] PHST- 2023/07/17 06:43 [medline] PHST- 2023/07/17 06:42 [pubmed] PHST- 2023/07/17 04:39 [entrez] PHST- 2023/01/01 00:00 [pmc-release] AID - 10.3389/fnhum.2023.955171 [doi] PST - epublish SO - Front Hum Neurosci. 2023 Jun 30;17:955171. doi: 10.3389/fnhum.2023.955171. eCollection 2023.