Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/103436
Title: A neuronal theta band signature of error monitoring during integration of facial expression cues
Authors: Dias, Camila
Costa, Diana M. 
Sousa, Teresa 
Castelhano, João 
Figueiredo, Verónica 
Pereira, Andreia C. 
Castelo Branco, Miguel 
Keywords: Error monitoring; Theta oscillations; EEG; Eye tracking; Facial Cue integration
Issue Date: 2022
Project: FCT - Grants BIGDATIMAGE, CENTRO-01-0145-FEDER-000016; BCICONNECT, PTDC/PSI-GER/30852/2017; B-RELIABLE, PTDC/EEI-AUT/30935/2017, DSAIPA/DS/0041/2020, PCIF/SSO/0082/2018, PAC -MEDPERSYST, POCI-01-0145- FEDER-016428, UI/BD/150832/2021]; 
Bial Foundation [The neural circuitry underlying error monitoring during social cognition, 306/2018 
Serial title, monograph or event: PeerJ
Volume: 10
Abstract: Error monitoring is the metacognitive process by which we are able to detect and signal our errors once a response has been made. Monitoring when the outcome of our actions deviates from the intended goal is crucial for behavior, learning, and the development of higher-order social skills. Here, we explored the neuronal substrates of error monitoring during the integration of facial expression cues using electroencephalography (EEG). Our goal was to investigate the signatures of error monitoring before and after a response execution dependent on the integration of facial cues. We followed the hypothesis of midfrontal theta as a robust neuronal marker of error monitoring since it has been consistently described as a mechanism to signal the need for cognitive control. Also, we hypothesized that EEG frequency-domain components might bring advantage to study error monitoring in complex scenarios as it carries information from locked and non-phase-locked signals. A challenging go/no-go saccadic paradigm was applied to elicit errors: integration of facial emotional signals and gaze direction was required to solve it. EEG data were acquired from twenty healthy participants and analyzed at the level of theta band activity during response preparation and execution. Although theta modulation has been consistently demonstrated during error monitoring, it is still unclear how early it starts to occur. We found theta power differences at midfrontal channels between correct and error trials. Theta was higher immediately after erroneous responses. Moreover, before response initiation we observed the opposite: lower theta preceding errors. These results suggest theta band activity not only as an index of error monitoring, which is needed to enhance cognitive control, but also as a requisite for success. This study adds to previous evidence for the role of theta band in error monitoring processes by revealing error-related patterns even before response execution in complex tasks, and using a paradigm requiring the integration of facial expression cues.
URI: http://hdl.handle.net/10316/103436
ISSN: 2167-8359
DOI: 10.7717/peerj.12627
Rights: openAccess
Appears in Collections:I&D CIBIT - Artigos em Revistas Internacionais
FMUC Medicina - Artigos em Revistas Internacionais
I&D ICNAS - Artigos em Revistas Internacionais

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