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An experimental study of psychophysiological and behavioural indicators of nonconscious emotional reactions in a clinical sample

2019; Frontiers Media; Volume: 13; Linguagem: Inglês

10.3389/conf.fncel.2019.01.00010

1662-5102

Bruno Faustino, Isabel Barahona da Fonseca, Miguel Baião, António Branco Vasco, Paulo Lopes, Jorge Oliveira,

Mental Health Research Topics

Event Abstract Back to Event An experimental study of psychophysiological and behavioural indicators of nonconscious emotional reactions in a clinical sample Bruno Faustino1*, Isabel Fonseca1, Miguel Baião1, António Branco Vasco1, Paulo Lopes2 and Jorge Oliveira2 1 Faculdade de Psicologia, Universidade de Lisboa, Portugal 2 Universidade Lusófona, Portugal Emotional automatic reaction in psychopathology have seldom been studied in experimental settings. Comparing three emotion conditions, positive, negative and neutral, we used a subliminal emotion priming paradigm to elicit emotions that the subject was not aware and observed their effects on behavioural reactions of approach/pleasure and avoidance/displeasure expressed and also ERP waveforms elicited by each emotion condition. The experimental paradigm consisted in masking presentation of visual emotion stimuli that were made subliminal by the time of presentation (49ms), by the masking backward and forward and by the task in which the participant’s attention was directed to the mask (non-figurative neutral) stimuli. The sample were 11 participants with BSI scores higher than the clinical criteria value. Behavioural data: as could be expected the more frequent subjective responses of approach/pleasure were associated with the emotion priming positive and negative. The neutral priming elicited displeasure/avoidance behavioural responses. ERPs waveforms recorded, respectively, synchronously with each experimental condition through 64 channels biosemi EEG system. These waveforms were offline averaged and regressed to the mean of the 125ms of baseline pre-stimuli presentation. The amplitude differences in the late latency time windows 390 ms were significant for right Fronto-Temporal and Posterior-Parietal EEG lead. The amplitude modulation was congruent with subjective responses, positive and negative priming condition elicited the higher amplitude of ERP waveforms compared to the neutral condition. In future studies the meaning of this psychophysiological indicator of nonconscious priming will be explored in a correlational study between Behavioural data, ERPS amplitude waveforms and Clinical Self Report Measures Keywords: Psychophysiology, Emotional reactions, ERP´s, Symptomatology, Affective Neuroscience Conference: XVI Meeting of the Portuguese Society for Neuroscience (SPN2019), Lisboa, Portugal, 30 May - 1 Jun, 2019. Presentation Type: Poster presentation Topic: Psychiatric Disorders / Addiction Citation: Faustino B, Fonseca I, Baião M, Branco Vasco A, Lopes P and Oliveira J (2019). An experimental study of psychophysiological and behavioural indicators of nonconscious emotional reactions in a clinical sample. Front. Cell. Neurosci. Conference Abstract: XVI Meeting of the Portuguese Society for Neuroscience (SPN2019). doi: 10.3389/conf.fncel.2019.01.00010 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 28 Feb 2019; Published Online: 27 Sep 2019. * Correspondence: Dr. Bruno Faustino, Faculdade de Psicologia, Universidade de Lisboa, Lisbon, Portugal, brunofaustino.psicologia@gmail.com Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Bruno Faustino Isabel Fonseca Miguel Baião António Branco Vasco Paulo Lopes Jorge Oliveira Google Bruno Faustino Isabel Fonseca Miguel Baião António Branco Vasco Paulo Lopes Jorge Oliveira Google Scholar Bruno Faustino Isabel Fonseca Miguel Baião António Branco Vasco Paulo Lopes Jorge Oliveira PubMed Bruno Faustino Isabel Fonseca Miguel Baião António Branco Vasco Paulo Lopes Jorge Oliveira Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.