Cognitive Affective & Behavioral Neuroscience最新文献_第5页

Bored out of my mind: Integrated and flexible brain networks define trait boredom. 无聊到极点：综合灵活的大脑网络定义了无聊的特征。

IF 3.6 3区医学

Cognitive Affective & Behavioral Neuroscience Pub Date : 2026-09-08 DOI: 10.3758/s13415-026-01489-z

Natasha L Taylor, James M Shine, James Danckert

{"title":"Bored out of my mind: Integrated and flexible brain networks define trait boredom.","authors":"Natasha L Taylor, James M Shine, James Danckert","doi":"10.3758/s13415-026-01489-z","DOIUrl":"https://doi.org/10.3758/s13415-026-01489-z","url":null,"abstract":"Our interests, attentional focus and their integration, are formed by complex interactions across large-scale neural networks. To date, however, few studies have investigated the temporal dynamics of brain activity related to trait boredom proneness, which itself is related to attentional dysfunction and higher rates of depression and anxiety. In a large consortium dataset, we investigated the resting-state network characteristics of boredom proneness. We found that those reporting to be frequently bored had overall increased cortical connectivity compared with those who said they were never bored. In addition, we found that the frequently bored had increased integrated network topology and greater network flexibility compared with those who were never bored. Further analyses indicated that the pattern of functional connectivity was distinct from that observed for the related behavioural challenges of attention deficit hyperactivity disorder. Through this approach, we provide a potential neural underpinning for trait boredom proneness that links network topological changes related to ascending arousal neuromodulatory systems to heightened integration and flexibility in those highly prone to boredom.","PeriodicalId":50672,"journal":{"name":"Cognitive Affective & Behavioral Neuroscience","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148914116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Worry undermines savoring's ability to reduce negative picture processing. 担心会削弱品味减少负面图像处理的能力。

IF 3.6 3区医学

Cognitive Affective & Behavioral Neuroscience Pub Date : 2026-09-04 DOI: 10.3758/s13415-026-01490-6

Mia F Utayde, Annmarie MacNamara

{"title":"Worry undermines savoring's ability to reduce negative picture processing.","authors":"Mia F Utayde, Annmarie MacNamara","doi":"10.3758/s13415-026-01490-6","DOIUrl":"https://doi.org/10.3758/s13415-026-01490-6","url":null,"abstract":"Savoring is a positive emotion up-regulation strategy that increases positive emotion and the late positive potential (LPP) in response to positive pictures. Knowing whether savoring affects response to subsequently presented negative pictures might increase understanding of whether it could buttress against the impact of upcoming negative events. Nonetheless, a beneficial effect of savoring on subsequent negative emotion might run counter to attempts to maintain negative emotion that are employed by individuals high in chronic worry. We investigated whether savoring of positive pictures would alter electrocortical and self-report responses to subsequently presented negative and neutral pictures, and whether individual differences in worry would moderate this effect. On each trial, participants (N = 36) savored or viewed a positive picture, which was followed by a negative or neutral picture. Participants were asked to simply view the second picture and rate its emotional valence while EEG was recorded. Results showed that savoring positive pictures led to reduced LPPs to negative but not neutral pictures. However, this effect was attenuated for those higher in worry, such that individuals with higher levels of worry showed larger LPPs to negative pictures after savoring (versus viewing), whereas those with lower levels of worry had smaller LPPs to negative pictures after savoring. Savoring did not affect self-reported pleasantness ratings to negative pictures, and worry did not modulate savoring of positive pictures. Therefore, savoring may reduce the processing of upcoming negative pictures but may backfire for individuals higher in worry, potentially because emotional shifts are perceived as threatening.","PeriodicalId":50672,"journal":{"name":"Cognitive Affective & Behavioral Neuroscience","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148892649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluating the neural dynamics of affective and cognitive empathy: Insights from a within-subjects experimental design and mass univariate analysis. 评估情感和认知共情的神经动力学：来自受试者内部实验设计和大规模单变量分析的见解。

IF 3.6 3区医学

Cognitive Affective & Behavioral Neuroscience Pub Date : 2026-09-03 DOI: 10.3758/s13415-026-01465-7

Seth B Winward, Roxane J Itier

{"title":"Evaluating the neural dynamics of affective and cognitive empathy: Insights from a within-subjects experimental design and mass univariate analysis.","authors":"Seth B Winward, Roxane J Itier","doi":"10.3758/s13415-026-01465-7","DOIUrl":"10.3758/s13415-026-01465-7","url":null,"abstract":"Event-related potential (ERP) studies claim that affective and cognitive empathy differentially modulate ERPs evoked by painful stimuli such that affective empathy influences early frontocentral components (N1, N2) and cognitive empathy affects later centroparietal components (P3, LPP). However, existing studies only use one empathy task and thus tap into only one construct. We used a within-subjects design in which participants viewed body parts experiencing painful and neutral stimulation followed by faces making congruent painful and neutral expressions. Participants (N = 100) completed four different tasks in response to the stimuli, rating their own discomfort (Affective Sharing), their concern for the target (Empathic Concern), how much pain they thought the target felt (affective Perspective-Taking), and the masculinity/femininity of the target (Control). Data-driven mass univariate analyses were used to analyze all electrodes and epoch timepoints separately for the body part and face stimuli. In contrast to previous findings, affective sharing and cognitive empathy tasks did not differ during early ERP components. For body parts, the effect of pain (painful vs. neutral stimuli) elicited widespread amplitude differences between empathy and control tasks from 200-650 ms, including the N2, P3 and LPP components, with no difference between empathy tasks. For faces, effects of pain started on the N170 and were weaker and more temporally restricted for the perspective-taking task, disappearing after 420 ms while empathic concern and affective sharing tasks elicited activity until 650 ms. We discuss these results and their implications for theories of empathy, emotion, and affective priming.","PeriodicalId":50672,"journal":{"name":"Cognitive Affective & Behavioral Neuroscience","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148889230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modulation of prefrontal theta oscillations slows social cognition. 前额叶θ波的调制减缓了社会认知。

IF 3.6 3区医学

Cognitive Affective & Behavioral Neuroscience Pub Date : 2026-09-03 DOI: 10.3758/s13415-026-01491-5

Dominika E Zawadzka, Martin Stokroos, Miles Wischnewski

{"title":"Modulation of prefrontal theta oscillations slows social cognition.","authors":"Dominika E Zawadzka, Martin Stokroos, Miles Wischnewski","doi":"10.3758/s13415-026-01491-5","DOIUrl":"https://doi.org/10.3758/s13415-026-01491-5","url":null,"abstract":"Mentalization, the ability to interpret the mental states of others, is a central component of Theory of Mind (ToM). The medial prefrontal cortex (mPFC) has been consistently implicated in mentalization, but the neural oscillations that support this process are not fully understood. Theta oscillations are a candidate mechanism, because they have been linked to social-cognitive processing and may coordinate information processing through coupling with faster gamma activity. In the present sham-controlled, within-subjects study, we investigated whether mentalizing performance can be modulated using either conventional theta transcranial alternating current stimulation (tACS) or cross-frequency theta-gamma tACS over the mPFC. Thirty-four participants completed a mentalization task during theta, theta-gamma, and sham stimulation. Decision time and accuracy were assessed for affective and cognitive judgments. Theta stimulation slowed decision times compared with sham and theta-gamma stimulation, whereas theta-gamma stimulation did not differ from sham. Theta stimulation slowed both affective and cognitive judgments, with the effect being more pronounced for cognitive judgments. Accuracy was unaffected by stimulation. The observed slowing suggests that theta stimulation may have increased the weighting of competing social information, resulting in slower affective and cognitive judgments rather than improved performance. Together, these findings indicate that mPFC theta oscillations may influence the speed of mentalizing judgments.","PeriodicalId":50672,"journal":{"name":"Cognitive Affective & Behavioral Neuroscience","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148889350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Loneliness is linked to reduced calibration of confidence to uncertainty in social decision-making. 孤独与社会决策中对不确定性的信心校准降低有关。

IF 3.6 3区医学

Cognitive Affective & Behavioral Neuroscience Pub Date : 2026-08-14 DOI: 10.3758/s13415-026-01488-0

Błażej Misiak

{"title":"Loneliness is linked to reduced calibration of confidence to uncertainty in social decision-making.","authors":"Błażej Misiak","doi":"10.3758/s13415-026-01488-0","DOIUrl":"https://doi.org/10.3758/s13415-026-01488-0","url":null,"abstract":"Loneliness is associated with altered social cognition and decision-making, yet the processes through which it shapes behavior in uncertain social contexts remain poorly understood. In particular, little is known about how loneliness relates to metacognitive evaluations of decision reliability. The present study examined whether loneliness is associated with differences in decision confidence and its calibration to uncertainty during social decision-making. Data were collected from two independent general population samples (N = 6,517) using a vignette-based task in which participants decided to engage in or avoid social interactions and rated their confidence. Across both samples, higher loneliness was associated with lower overall decision confidence. Critically, loneliness moderated the relationship between decision difficulty and confidence such that individuals reporting higher loneliness showed reduced sensitivity of confidence to increasing difficulty, indicating diminished calibration to uncertainty across diverse social decision contexts. In contrast, loneliness was not associated with differential confidence between engagement and avoidance decisions. These findings were robust after adjusting for demographic variables and symptoms of depression and anxiety. The results suggest that loneliness is linked to altered metacognitive evaluation rather than biases in decision outcomes, highlighting impaired confidence calibration as a potential mechanism underlying persistent loneliness and maladaptive social functioning.","PeriodicalId":50672,"journal":{"name":"Cognitive Affective & Behavioral Neuroscience","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148761399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conative inference as a mechanism of allostatic resilience: wanting to be and being to want. 作为适应弹性机制的条件推理：想要存在和想要存在。

IF 3.6 3区医学

Cognitive Affective & Behavioral Neuroscience Pub Date : 2026-08-14 DOI: 10.3758/s13415-026-01485-3

Valery Krupnik

{"title":"Conative inference as a mechanism of allostatic resilience: wanting to be and being to want.","authors":"Valery Krupnik","doi":"10.3758/s13415-026-01485-3","DOIUrl":"https://doi.org/10.3758/s13415-026-01485-3","url":null,"abstract":"Stability, mental stability in particular, is necessary for adaptive functioning. Dynamical systems existing in a changing environment must adapt to it by resolving the dialectical tension between stability and flexibility, which is captured in the concept of resilience. Allostasis is considered as a systemic mechanism of resilience and has recently been framed in terms of active inference, a theory of sentient behavior. Allostatic systems are thought to operate on the principle of self-organized criticality, which is related to free energy minimization, the central tenet of active inference theory. Based on this framework, I propose a functional brain hierarchy that supports allostasis. In it, desire and affect, framed in terms of affective inference, serve to integrate and mediate mutual constraints between cognitive and physiological homeostases. I further suggest that as allostatic organisms evolve into affective ones, they develop into conative agents, whose conation regulates their affective dynamics. At the top of this regulatory hierarchy, I propose raw desire, a domain-general global desire for positive affect (or to simply feel better). This functional hierarchy makes the raw desire-affective charge regulatory loop a core mechanism of allostasis and mental stability. It also implies an inherent vulnerability of conative organisms to affective dysregulation. Accordingly, much of psychopathology may be considered as compromised conative inference, which could be a target for therapeutic intervention.","PeriodicalId":50672,"journal":{"name":"Cognitive Affective & Behavioral Neuroscience","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148762511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The selective dynamics of proactive and reactive control in GAD: A taVNS study using hierarchical drift diffusion modeling. GAD中主动和被动控制的选择性动力学：基于分层漂移扩散模型的taVNS研究。

IF 3.6 3区医学

Cognitive Affective & Behavioral Neuroscience Pub Date : 2026-08-10 DOI: 10.3758/s13415-026-01486-2

Shuliang Bai, Peibing Liu, Fangfang Long, Ruiming Wang

{"title":"The selective dynamics of proactive and reactive control in GAD: A taVNS study using hierarchical drift diffusion modeling.","authors":"Shuliang Bai, Peibing Liu, Fangfang Long, Ruiming Wang","doi":"10.3758/s13415-026-01486-2","DOIUrl":"https://doi.org/10.3758/s13415-026-01486-2","url":null,"abstract":"Anxiety has been linked to mode-specific dysregulation in cognitive control, characterized by reduced proactive maintenance and heightened reliance on reactive engagement. Yet many neuromodulation studies implicitly assume a unitary enhancement of control. We tested whether acute transcutaneous auricular vagus nerve stimulation (taVNS) produces global or context-dependent changes in cognitive control. Thirty-one individuals with generalized anxiety disorder completed a within-subject, single-blind, counterbalanced study comparing active and sham taVNS across two sessions. Participants performed the AX Continuous Performance Task, which dissociates proactive and reactive control demands. Conventional behavioral indices, including reaction time, accuracy, d'-context, and proactive behavioral indices, did not show reliable stimulation-specific changes. Hierarchical drift diffusion modeling further suggested that stimulation-related effects were subtle and uncertain. A modest directional pattern emerged for boundary separation in AY trials, where active taVNS appeared to preserve decision caution relative to a sham-related decline; however, the 95% HDI included zero. Structural and RT-threshold sensitivity analyses retained the positive direction of this contrast but did not remove its uncertainty. These findings do not establish a robust enhancement of cognitive control, but provide limited preliminary evidence for possible context-dependent preservation of decision gating.","PeriodicalId":50672,"journal":{"name":"Cognitive Affective & Behavioral Neuroscience","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148708304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Social competition shapes motor response execution and inhibition in a Go/NoGo task: Behavioral, signal-detection, and ERP evidence. 社会竞争在Go/NoGo任务中塑造运动反应执行和抑制：行为，信号检测和ERP证据。

IF 3.6 3区医学

Cognitive Affective & Behavioral Neuroscience Pub Date : 2026-08-10 DOI: 10.3758/s13415-026-01487-1

Cuihong Liu, Guoliang Chen, Bing Zhang, Yansong Li

{"title":"Social competition shapes motor response execution and inhibition in a Go/NoGo task: Behavioral, signal-detection, and ERP evidence.","authors":"Cuihong Liu, Guoliang Chen, Bing Zhang, Yansong Li","doi":"10.3758/s13415-026-01487-1","DOIUrl":"https://doi.org/10.3758/s13415-026-01487-1","url":null,"abstract":"The present study examined how social competition modulates motor response execution and inhibition using behavioral, signal-detection, and event-related potential measures. Forty-three participants completed a Go/NoGo (GNG) task under social-competition and control conditions while EEG was recorded. Relative to control, social competition shortened Go-trial reaction times (RTs) without reducing accuracy, and greater RT speeding was associated with larger increases in the rated importance of response speed. Competition also increased NoGo commission errors, reflecting reduced Go/NoGo discriminability (lower d') and a more liberal response criterion (C). Neurally, NoGo trials elicited larger N2 and P3 amplitudes than Go trials, whereas competition enhanced both Go-P3 and NoGo-P3 amplitudes without reliably modulating the N2. Go-P3 amplitude, maximal over centro-parietal/parietal sites, was negatively associated with Go RTs in the control condition. Competition-related increases in Go-P3 amplitude were associated with greater Go-RT speeding and statistically mediated the effect of competition on Go RTs, suggesting greater engagement of an stimulus-response (S-R) mapping process that translates task-relevant stimulus features into the appropriate Go-response representation. NoGo-P3 amplitude, maximal over frontocentral/central sites, was not significantly associated with commission errors or d' in the control condition. However, competition-related increases in NoGo-P3 amplitude were associated with increased commission errors and reduced d' and statistically mediated both effects. This pattern suggests that enhanced NoGo-P3 amplitude reflects increased demands for reactive control under a heightened prepotent Go tendency. Overall, social competition preferentially modulated P3-indexed, time-resolved control processes during motor response execution and inhibition, facilitating faster but still accurate motor response execution while impairing response withholding.","PeriodicalId":50672,"journal":{"name":"Cognitive Affective & Behavioral Neuroscience","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148708349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Shared and unique neural correlates of reappraisal generation and implementation. 重评价产生和实现的共享和独特的神经关联。

IF 3.6 3区医学

Cognitive Affective & Behavioral Neuroscience Pub Date : 2026-08-07 DOI: 10.3758/s13415-026-01477-3

Yuanjie Ritz Liu, M Brody Leo, Kateri McRae, Christian E Waugh

{"title":"Shared and unique neural correlates of reappraisal generation and implementation.","authors":"Yuanjie Ritz Liu, M Brody Leo, Kateri McRae, Christian E Waugh","doi":"10.3758/s13415-026-01477-3","DOIUrl":"https://doi.org/10.3758/s13415-026-01477-3","url":null,"abstract":"Cognitive reappraisal is an effective emotion regulation strategy that involves changing the meaning of an emotional event to alter one's emotional experience. Experimental studies have identified two dissociable subprocesses within reappraisal: the generation of candidate reappraisals (reappraisal generation) and the elaboration on a reappraisal to change emotion (reappraisal implementation). We examined the shared and unique neural correlates of these two reappraisal subprocesses. Participants (N = 45) completed the validated GenImp task while fMRI BOLD data was collected. In this task, participants viewed emotional images and, in separate steps, generated possible reappraisals and then implemented those reappraisals to feel better. Both generation and implementation engaged executive and semantic networks, while generation preferentially recruited ventral semantic pathways supporting conceptual analysis and flexible meaning construction. In contrast, implementation involved greater engagement of dorsal and self-referential regions supporting attentional control, elaboration, and emotional modulation, accompanied by stronger Executive Control Network - Default Mode Network (DMN) anticorrelation and DMN suppression. Together, these findings highlight a functional shift during reappraisal, starting with flexible semantic construction (generation), and then to top-down regulatory control (implementation), illuminating how executive, semantic, and self-referential systems dynamically interact to achieve successful emotion regulation in cognitive reappraisal.","PeriodicalId":50672,"journal":{"name":"Cognitive Affective & Behavioral Neuroscience","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148690241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The diverse relationship between self-prioritization effect and emotional valence: Self-positivity bias and self-negative repulsion. 自我优先效应与情绪效价的多元关系：自我积极偏向和自我消极排斥。

IF 3.6 3区医学

Cognitive Affective & Behavioral Neuroscience Pub Date : 2026-08-07 DOI: 10.3758/s13415-026-01480-8

Lingying Jin, Delin Yu, Jie Zhang, Mei Li, Hong Li

{"title":"The diverse relationship between self-prioritization effect and emotional valence: Self-positivity bias and self-negative repulsion.","authors":"Lingying Jin, Delin Yu, Jie Zhang, Mei Li, Hong Li","doi":"10.3758/s13415-026-01480-8","DOIUrl":"https://doi.org/10.3758/s13415-026-01480-8","url":null,"abstract":"Although the self-positivity bias (SPB) suggests a preferential association with positive valence, emerging evidence indicates a more robust self-interaction with negativity. We propose self-negativity repulsion (SNR)-an active avoidance mechanism-as a distinct process complementing SPB. Using a novel nonsemantic paradigm, we examined the bidirectional influence between self-relevance (self, stranger, none) and emotional valence (positive, negative, neutral) across two tasks: one assessing emotional valence's impact on self-processing (Social Task), the other vice versa (Emotional Task). Analyses of behavioral (RTs) and electrophysiological data (ERPs, MVPC) revealed a dissociation. Positive valence yielded no behavioral benefits but showed subtle neural facilitation (e.g., enhanced decoding, distinct connectivity), suggesting a processing saturation effect. Conversely, negative valence consistently impaired behavior (slower RTs, reduced SPE). This was accompanied by a two-stage neural pattern: initial vigilance (a larger P2) followed by late-stage processing disruption (a reduced LPP). These findings provide converging evidence for dissociable SPB and SNR mechanisms. We suggest a dual-component model where SPB facilitates early processing and integration of positive self-information, while a distinct SNR mechanism actively modulates or inhibits negative self-information.","PeriodicalId":50672,"journal":{"name":"Cognitive Affective & Behavioral Neuroscience","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148690309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0