International Journal of Psychophysiology最新文献

{"title":"Linking brain and behavior in ADHD traits: A partial least squares analysis reveals somatosensory-motor dysconnectivity as a key neural basis.","authors":"Yu Xu, Yao Yin, Jie Xiang, Xueke Wang, Tingyong Feng","doi":"10.1016/j.ijpsycho.2026.113385","DOIUrl":"https://doi.org/10.1016/j.ijpsycho.2026.113385","url":null,"abstract":"<p><p>Partial Least Squares (PLS) is a multivariate data-driven approach advantageous in handing high-dimensional data and mitigating multicollinearity, which allow us to include a wide range of variables from multiple models and generate robust results. This study introduces partial least squares (PLS) as a novel application within ADHD research to address its complex symptomatology and delve deeper into the neural basis of ADHD. To achieve this, 231 participants (75 with ADHD traits) were recruited to undergo resting-state functional magnetic resonance imaging (rs-fMRI) acquisition as well as scales (e.g., ASRS, WURS, BIS) and tasks (e.g., ANT, N-back, SST) related to ADHD. Using behavioral PLS, we examined the associations between 24 variables related to ADHD symptoms, executive function, and resting-state functional connectivity (RSFC) in this sample. Results showed that a significant latent component explained 27% of the RSFC-behavior covariance, characterized by reduced connectivity within the somatomotor network (SMN) and increased connectivity between the SMN and subcortical regions. Further analysis revealed that the SMN dysconnectivity, recognized by PLS, mediated the effect of cool executive function on inattention. These findings suggest that the SMN might represent a neural correlate of ADHD traits and offer new insights and targets for future neuroregulatory interventions.</p>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":" ","pages":"113385"},"PeriodicalIF":2.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147718954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Direct evidence of inter-target response competition for limited resources in attentional blink","authors":"Liang Xu ,&nbsp;Zong Meng ,&nbsp;Qi Chen ,&nbsp;Antao Chen","doi":"10.1016/j.ijpsycho.2026.113338","DOIUrl":"10.1016/j.ijpsycho.2026.113338","url":null,"abstract":"<div><div>In everyday life, we sometimes fail to notice a second event if it follows too closely after another—this phenomenon, known as the attentional blink (AB), reveals inherent limits in our ability to process rapid streams of information. The AB is characterized by an impairment in accurately identifying a second target (T2), presented after a first target (T1) within a 200–500 ms window amid a rapid sequence of distractors. It has been widely theorized that the AB results from constraints on late-stage processing. Building on the classic AB paradigm, we manipulated response congruency between T1 and T2 to examine whether the response selection of T2 is constrained during the AB period. We recruited 31 participants and recorded electroencephalography (EEG) data throughout the experiment. The results indicated that congruent responses between the targets significantly improved T1 and T2 accuracy and attenuated the AB magnitude. EEG analysis revealed that incongruent responses, as opposed to congruent ones, led to different patterns in the late stage of T2 processing and were associated with larger P3b amplitudes for T2 recognition. Multivariate pattern analysis also showed the response congruency could be distinguished during the late stage of T2 processing. Notably, these effects were specifically observed within the AB time window and were absent outside this interval. These results suggest that targets vie for the limited late-stage processing resources during the AB period. However, congruence in responses among targets reduces this competitive demand, thereby mitigating the effects of the AB.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"222 ","pages":"Article 113338"},"PeriodicalIF":2.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146154335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Alpha-EEG/EMG neurofeedback combined with binaural beats stimulation: A randomized placebo-controlled within-subject cross over study","authors":"Olga M. Bazanova ,&nbsp;Alexander Zakharov ,&nbsp;Evgeniy Ozonov ,&nbsp;Robert J. Barry","doi":"10.1016/j.ijpsycho.2026.113337","DOIUrl":"10.1016/j.ijpsycho.2026.113337","url":null,"abstract":"<div><div>Both neurofeedback training (NFT) and binaural beat stimulation (BBS) are promising non-invasive neuromodulation techniques. NFT aims to enhance self-regulation by providing real-time feedback on brain activity, while BBS is thought to entrain brainwaves through auditory stimulation. Although both methods target similar outcomes, such as improved well-being and cognitive function, their potential interactive effects when combined remain largely unexplored and theoretically uncertain. This study empirically investigated the possible interference or synergistic effects between NFT and BBS.</div><div>Twenty-two healthy adults participated in a randomized, placebo-controlled, within-subject crossover study. The protocol included six 15-minute trials: baseline, NFT alone, pure-tone sound stimulation (400 Hz), BBS alone, NFT combined with sound, and NFT combined with BBS. The BBS was individually generated by modulating a 400 Hz carrier tone with the participant's own EEG recorded during successful NFT periods. Primary outcomes were Global Vigor (GV) and the Self-Regulation Learning Ability Index (SLAI). Secondary neurophysiological outcomes included individual alpha peak frequency (iAPF), alpha-2 power, and frontal integrated EMG (IEMG).</div><div>When applied separately, both NFT and BBS significantly improved outcomes compared to baseline (e.g., increased GV, SLAI, iAPF, and alpha power, and decreased IEMG; p ≤ 0.025). There was a significant interaction between the factors of NFT and BBS. The combination of NFT with BBS led to a significant decrease in SLAI, iAPF, and alpha power (p &lt; 0.007) compared to NFT alone, while GV remained unchanged.</div><div>Although BBS alone can positively influence well-being and self-regulatory ability, its simultaneous application during NFT disrupts the training efficacy.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"222 ","pages":"Article 113337"},"PeriodicalIF":2.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146101172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Complexity-based EEG biomarkers for early diagnosis of ADHD","authors":"Stanisław Kamiński,&nbsp;Michal Byra,&nbsp;Janusz Szczepanski,&nbsp;Agnieszka Pregowska","doi":"10.1016/j.ijpsycho.2026.113333","DOIUrl":"10.1016/j.ijpsycho.2026.113333","url":null,"abstract":"<div><h3>Background:</h3><div>Attention-Deficit/Hyperactivity Disorder (ADHD) is a common neurodevelopmental disorder marked by attentional dysregulation and executive dysfunction. Despite its prevalence, diagnosis remains primarily clinical, lacking robust, objective biomarkers.</div></div><div><h3>New Method:</h3><div>This study introduces a non-invasive, data-driven method for identifying ADHD-related neural signatures using electroencephalography (EEG) combined with Lempel–Ziv Complexity (LZC). LZC quantifies the temporal complexity of neural signals, offering a sensitive measure of brain dynamics that may reveal subtle differences between clinical and control groups.</div></div><div><h3>Results:</h3><div>Our spatiotemporal analysis revealed that LZC effectively differentiates ADHD from control EEG patterns at the level of local temporal signal dynamics, with the most pronounced group separations observed at right-lateralized parietal and frontal electrodes, particularly P8, P7, and F8, suggesting altered local EEG signal dynamics over regions implicated in visuospatial attention and executive control. Additional sites, including T7, Pz, O1, and Fp1, exhibited moderate discriminative power, whereas midline and central regions showed minimal differences. Children with ADHD showed reduced nonlinear EEG complexity compared with controls, reflecting altered local temporal EEG signal dynamics during task engagement, particularly at right-lateralised electrodes. The most pronounced group differences were observed at P8 and F8 across both earlier and later segments of the recording, indicating consistently lower signal complexity in the ADHD group. This pattern suggests that right parietal-temporal and frontal regions carry the highest discriminative power for distinguishing children with ADHD from typically developing controls.</div></div><div><h3>Comparison with Existing Methods:</h3><div>Unlike conventional EEG analyses focusing on power spectra or event-related potentials, the LZC-based method captures dynamic complexity, enabling more nuanced differentiation of neural activity patterns. This complexity metric provides complementary information that traditional frequency or time-domain approaches may overlook.</div></div><div><h3>Conclusions:</h3><div>LZC analysis of EEG signals offers a promising complementary biomarker for ADHD, highlighting altered neural dynamics in regions implicated in attentional and executive processes. This complexity-based approach may enhance the objectivity and precision of neurodevelopmental disorder diagnostics.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"221 ","pages":"Article 113333"},"PeriodicalIF":2.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146097606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neural correlates of happiness and its association with social avoidance and distress: Evidence from voxel-based morphometry and resting-state functional connectivity","authors":"Chun Yang ,&nbsp;Yunpeng Liu ,&nbsp;Xiaoyi Liu ,&nbsp;Dehua Wu ,&nbsp;Yan Cheng ,&nbsp;Huazhan Yin","doi":"10.1016/j.ijpsycho.2026.113331","DOIUrl":"10.1016/j.ijpsycho.2026.113331","url":null,"abstract":"<div><div>Happiness, a multifaceted construct including both affective and cognitive components of human experience, plays a vital role in individuals' mental and physical health, as well as their social development. Although numerous behavioral studies have demonstrated a negative association between social avoidance and distress (SAD) and happiness, the neural mechanisms underlying the relationship remain elusive. To address this gap, the present study employed voxel-based morphometry (VBM) and resting-state functional connectivity (RSFC) methods in a sample of 308 healthy young adults to examine the neural pathways linking SAD and happiness. The behavioral results showed that happiness was negatively correlated with SAD. The VBM results revealed that gray matter volumes (GMVs) in the left dorsolateral prefrontal cortex (lDLPFC), right dorsolateral prefrontal cortex (rDLPFC), and right inferior parietal lobule (rIPL) were negatively associated with happiness. Furthermore, the RSFC results showed that the functional connectivities between the lDLPFC and medial prefrontal cortex (MPFC), lDLPFC and left cerebellum posterior lobe (lCPL), and rDLPFC and left angular gyrus (lAG), were all positively correlated with happiness. Importantly, the mediation results demonstrated that the lDLPFC–MPFC and lDLPFC–lCPL functional couplings mediated the relationship between SAD and happiness. These findings not only deepen our understanding of the neurobiological substrates of happiness but also highlight the potential role of prefrontal functional connectivity as a target for psychophysiological interventions aimed at enhancing well-being in individuals experiencing high levels of SAD.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"221 ","pages":"Article 113331"},"PeriodicalIF":2.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146042313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inhibitory control training might be a gateway to enhance fear extinction","authors":"Kaneez Fatima Dar ,&nbsp;Manish Kumar Asthana","doi":"10.1016/j.ijpsycho.2026.113335","DOIUrl":"10.1016/j.ijpsycho.2026.113335","url":null,"abstract":"<div><div>Inhibitory learning forms an essential component of extinction learning; deficits in it could hinder extinction. Previous research has shown that optimizing inhibitory learning has the potential to improve extinction. The current study aims to improve extinction and extinction recall through inhibitory control training. The participants underwent a 3-day fear conditioning experiment, habituation and fear acquisition occurred on day 1, extinction on day 2 and extinction recall on day 3. On day 2, participants were randomly assigned to two groups: an inhibitory control training and standard extinction (IC-SE) group, and a standard extinction (SE) group. IC-SE underwent a stop-signal task training before extinction. The SE group did not undergo any training. Our findings indicate that inhibitory control training, using the stop-signal task, leads to a greater reduction in UCS-expectancy and subjective arousal ratings during extinction. This effect persisted and was observed 24 h later during extinction recall. Our findings suggest that training inhibitory control may aid extinction through retrieval suppression.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"221 ","pages":"Article 113335"},"PeriodicalIF":2.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"International Organization of Psychophysiology","authors":"","doi":"10.1016/S0167-8760(26)00026-7","DOIUrl":"10.1016/S0167-8760(26)00026-7","url":null,"abstract":"","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"221 ","pages":"Article 113344"},"PeriodicalIF":2.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147385375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Indirect effects of threat processing on worry: The roles of emotion dysregulation and contrast avoidance","authors":"Matt R. Judah ,&nbsp;Hannah C. Hamrick ,&nbsp;Morgan S. Middlebrooks ,&nbsp;Ben Swanson ,&nbsp;Arooj Abid ,&nbsp;Wesley J.B. Vaught","doi":"10.1016/j.ijpsycho.2026.113320","DOIUrl":"10.1016/j.ijpsycho.2026.113320","url":null,"abstract":"<div><div>Automatic attention to threat, known as attentional bias, is theorized to give rise to worry (Hirsch and Mathews, 2012). However, results have been equivocal regarding the link between worry and attentional bias as indicated by the late positive potential (LPP), a neural marker of attention. Additionally, theories suggest that emotion dysregulation and contrast avoidance may explain why attention to threat is related to worry. However, no studies have examined this or even determined whether there is an association between contrast avoidance and the LPP evoked by threat. To address these inconsistencies and gaps in the current research, the present study examined the associations between the early portion (400-700 ms) of the threat-evoked LPP, emotion dysregulation, contrast avoidance, and worry in a sample of 106 undergraduate students, 54.7% of whom endorsed clinically significant worry. Results indicated that the LPP was positively associated with both emotion dysregulation and contrast avoidance. Higher emotion dysregulation and higher contrast avoidance scores were associated with greater self-reported worry. There was an indirect effect of the LPP on worry through both emotion dysregulation and contrast avoidance. These results support a link between early attentional bias to threat and worry and suggest that clinicians should consider multiple mechanisms of pathological worry.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"221 ","pages":"Article 113320"},"PeriodicalIF":2.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145953965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predictable changes within fast-paced sound sequences do not elicit the mismatch negativity: A conceptual in-class replication study","authors":"Florian Scharf ,&nbsp;Dagmar Müller","doi":"10.1016/j.ijpsycho.2026.113330","DOIUrl":"10.1016/j.ijpsycho.2026.113330","url":null,"abstract":"<div><div>In the past decade, there has been considerable concern about the reproducibility of psychological research. We suggest that in-class replications are a feasible setting for the replication of psychophysiological findings and present our conceptual in-class replication of a finding by Sussman, Ritter, and Vaughan Jr. (1998). In the original study, infrequent pitch deviants (proportion: 20%) were presented either at fixed (i.e., predictable) positions or at random positions (i.e., as classic oddballs) in the auditory sequence. The authors found that deviants presented in the predictable condition did not elicit the mismatch negativity (MMN) in the event-related potential (ERP) when the tone sequence was presented at sufficiently fast stimulus onset asynchronies (SOAs) but deviants presented in the random condition elicited an MMN. We replicated a subset of the original conditions in a sample of 25 participants. Although we had changed some aspects of the original design we found frequentist and Bayesian statistical evidence in favor of ERP-differences in the predictable vs. the random condition in the MMN time window. In line with the original results deviants presented in the predictable condition did not elicit an MMN suggesting that the auditory system extracts regularly occurring patterns within fast-paced task-irrelevant acoustic input. However, sequential Bayes factor analysis showed a substantial between-participant variability in the random condition obscuring the presence of a reliable MMN. We discuss potential inter-individual differences in segregating fast-paced sound sequences into separate streams as an explanation for this phenomenon. We further discuss advantages and disadvantages of in-class replications in psychophysiological research.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"221 ","pages":"Article 113330"},"PeriodicalIF":2.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146013337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A systematic literature review of respiratory sinus arrhythmia response to psychotherapy in pediatric samples","authors":"Hilary Skov ,&nbsp;Sydney Hawkins ,&nbsp;Jonas G. Miller ,&nbsp;Carolyn A. Greene ,&nbsp;Sarah A.O. Gray","doi":"10.1016/j.ijpsycho.2026.113319","DOIUrl":"10.1016/j.ijpsycho.2026.113319","url":null,"abstract":"<div><div>The present review synthesizes research examining changes in parasympathetic biomarkers of self-regulation (i.e., respiratory sinus arrhythmia [RSA] activity) over the course of intervention or prevention programs in pediatric samples. Based on a preregistered protocol (PROSPERO: CRD42024550670), PubMed and PsycINFO databases were searched until July 1, 2025 to identify 13 peer-reviewed, empirical studies reporting indices of RSA activity in samples of infants, children, and adolescents participating in psychotherapy treatment programs. Study quality was evaluated using design-specific tools from the NHLBI and ROBINS-I, and results were synthesized narratively given differences in study design, intervention type, and RSA measurement. Seven studies examined immediate pre-post changes in baseline RSA, and all seven reported increases on average. All four studies that assessed RSA at follow-up showed maintenance of the posttreatment pattern. Seven studies assessed RSA reactivity; six observed pre-post change, though the direction varied. Following treatment for externalizing disorders, youth generally showed increased RSA withdrawal, whereas youth generally showed reduced RSA withdrawal or greater stability following treatment for internalizing disorders. Four studies examined RSA across multiple treatment sessions, and three reported within-treatment shifts. Correspondence between RSA change and psychosocial symptom reduction was found in most studies testing this link, though patterns of association varied across samples. Thus, baseline RSA and RSA reactivity may respond to treatment, although patterns of change vary based on symptom presentation. Limitations of this body of literature include small sample sizes and methodological heterogeneity. Findings are considered in relation to models of self-regulation and build on previous reviews of altered autonomic functioning in pediatric samples with dysregulation.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"221 ","pages":"Article 113319"},"PeriodicalIF":2.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145946903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}