Common and separable behavioral and neural mechanisms underlie the generalization of fear and disgust

Wang, Jinxia; Sun, Xiaofeng; Becker, Benjamin; Lei, Yi

doi:10.1016/j.pnpbp.2022.110519

Cited by 5 publications

(2 citation statements)

References 79 publications

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“…Further, other ERP studies have reported an increased amplitude associated with disgust during the LPP period, proposing that disgust may attract sustained attention, thereby enhancing memory processing. However, these studies did not directly compare disgust with other negative emotions (e.g., [ 45 , 48 , 49 , 50 ]), i.e., disgust was not considered as a separate category. Further, the effect of disgust was evident in both the parietal and frontal LPP at approximately 400 and 700 ms, respectively [ 50 ].…”

Section: Introductionmentioning

confidence: 99%

Electrophysiological Correlates of Amplified Emotion-Related Cognitive Processing Evoked by Self-Administered Disgust Images

Bianco,

Bello,

Cimmino

et al. 2024

Brain Sciences

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In the processing of emotions, the brain prepares and reacts in distinctive manners depending upon the negative or positive nuance of the emotion elicitors. Previous investigations showed that negative elicitors generally evoke more intense neural activities than positive and neutral ones, as reflected in the augmented amplitude of all sub-components of the event-related potentials (ERP) late posterior positivity (LPP) complex, while less is known about the emotion of disgust. The present study aimed to examine whether the LPP complex during the processing of disgust stimuli showed greater amplitude than other emotion elicitors with negative or positive valences, thus confirming it as a neural marker of disgust-related negativity bias at earlier or later stages. Thus, in the present study, we leveraged the ERP technique during the execution of an affective self-administered visual stimuli task to disentangle the neural contributions associated with images of positive, negative, disgust, or neutral images. Crucially, we showed that handling with disgust elicitors prompted the greatest neural activity and the highest delay during self-administration. Overall, we demonstrated progressive neural activities associated with the unpleasantness of the emotion elicitors and peculiar processing for disgust compared with all other emotions.

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Section: Introductionmentioning

confidence: 99%

Electrophysiological Correlates of Amplified Emotion-Related Cognitive Processing Evoked by Self-Administered Disgust Images

Bianco,

Bello,

Cimmino

et al. 2024

Brain Sciences

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show abstract

“…The contingent negative variation (CNV) is a slow cortical negative wave that has been associated with anticipatory attention and motor preparation (Brunia and Van Boxtel 2001;Brunia et al 2012). It has also been observed as a form of a conditioned response to fear and disgust stimuli (Wang et al 2022), as a neural correlate reflecting anxiety-dependent changes in cognitive preparation to quick motor responses (Proulx and Picton 1984;Ansari and Derakshan 2011) and as pre-emptive anticipatory reaction to expected balance perturbations (Jacobs et al 2008). In the current study, we introduce an experimental paradigm in which we invoke a conditioned (arousal) response to a threatening situation using sudden perturbations in the form of translations of the base of support.…”

Section: Introductionmentioning

confidence: 99%

Electrocortical activity associated with movement-related fear: a methodological exploration of a threat-conditioning paradigm involving destabilising perturbations during quiet standing

Grinberg,

Strong,

Strandberg

et al. 2024

Exp Brain Res

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Musculoskeletal trauma often leads to lasting psychological impacts stemming from concerns of future injuries. Often referred to as kinesiophobia or re-injury anxiety, such concerns have been shown to hinder return to physical activity and are believed to increase the risk for secondary injuries. Screening for re-injury anxiety is currently restricted to subjective questionnaires, which are prone to self-report bias. We introduce a novel approach to objectively identify electrocortical activity associated with the threat of destabilising perturbations. We aimed to explore its feasibility among non-injured persons, with potential future implementation for screening of re-injury anxiety. Twenty-three participants stood blindfolded on a translational balance perturbation platform. Consecutive auditory stimuli were provided as low (neutral stimulus [CS–]) or high (conditioned stimulus [CS+]) tones. For the main experimental protocol (Protocol I), half of the high tones were followed by a perturbation in one of eight unpredictable directions. A separate validation protocol (Protocol II) requiring voluntary squatting without perturbations was performed with 12 participants. Event-related potentials (ERP) were computed from electroencephalography recordings and significant time-domain components were detected using an interval-wise testing procedure. High-amplitude early contingent negative variation (CNV) waves were significantly greater for CS+ compared with CS– trials in all channels for Protocol I (> 521-800ms), most prominently over frontal and central midline locations (P ≤ 0.001). For Protocol II, shorter frontal ERP components were observed (541-609ms). Our test paradigm revealed electrocortical activation possibly associated with movement-related fear. Exploring the discriminative validity of the paradigm among individuals with and without self-reported re-injury anxiety is warranted.

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Neurocognitive mechanisms of mental imagery-based disgust learning

Wang,

Shen,

Becker

et al. 2024

Behaviour Research and Therapy

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Common and separable behavioral and neural mechanisms underlie the generalization of fear and disgust

Cited by 5 publications

References 79 publications

Electrophysiological Correlates of Amplified Emotion-Related Cognitive Processing Evoked by Self-Administered Disgust Images

Electrophysiological Correlates of Amplified Emotion-Related Cognitive Processing Evoked by Self-Administered Disgust Images

Electrocortical activity associated with movement-related fear: a methodological exploration of a threat-conditioning paradigm involving destabilising perturbations during quiet standing

Neurocognitive mechanisms of mental imagery-based disgust learning

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