Ailyn Garcia-Hernandez , Pablo de la Coba , Ana M. Contreras-Merino , Carmen M. Galvez-Sánchez , Casandra I. Montoro , Gustavo A. Reyes del Paso
{"title":"Central sensitization symptoms are related to cortisol and cardiovascular activity in fibromyalgia: Further validation of the Central Sensitization Inventory","authors":"Ailyn Garcia-Hernandez , Pablo de la Coba , Ana M. Contreras-Merino , Carmen M. Galvez-Sánchez , Casandra I. Montoro , Gustavo A. Reyes del Paso","doi":"10.1016/j.ijpsycho.2025.113308","DOIUrl":"10.1016/j.ijpsycho.2025.113308","url":null,"abstract":"<div><div>This study aimed to investigate the validity of the Central Sensitization Inventory (CSI) in patients with fibromyalgia (FM) via analysis of its predictive (associations with physiological variables and algometry measures) and discriminative (differentiating between patients with different chronic pain conditions) validity. In 43 women with FM and 36 healthy women, hair cortisol concentrations (HCC), cardiovascular variables when sitting, standing and lying down, pressure algometry and clinical variables were measured. For discriminative validity, another additional 39 women with FM and 33 women with rheumatoid arthritis (RA) also participated. In patients with FM, CSI scores correlated positively with HCC, total peripheral resistance and blood pressure (vascular factors), and inversely with inter-beat interval, stroke volume and cardiac output (cardiac factors), heart rate variability and baroreceptor reflex sensitivity (vagal cardiac variables), and pain threshold. Furthermore, CSI scores to predict the use of anxiolytics and opioid medication. Binary logistic regression analyses showed that CSI scores significantly discriminated among the three study groups, with progressively higher scores in FM, RA and healthy participants. This study provides support for the predictive and discriminative validity of CSI in patients with FM. Predictive validity in terms of physiological factors, such as cortisol and cardiovascular variables, could add utility to the CSI as a screener and treatment outcome measure. Furthermore, the CSI has good sensitivity and specificity in the discrimination of patients suffering from different conditions of chronic pain.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"220 ","pages":"Article 113308"},"PeriodicalIF":2.6,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145752447","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}
Anastasia Neklyudova , Anna Rebreikina , Olga Sysoeva
{"title":"The neurophysiological correlates of click rate discrimination in children","authors":"Anastasia Neklyudova , Anna Rebreikina , Olga Sysoeva","doi":"10.1016/j.ijpsycho.2025.113304","DOIUrl":"10.1016/j.ijpsycho.2025.113304","url":null,"abstract":"<div><div>The current study investigated rhythmic stimuli perception in typically developing children (5–18 years old, <em>n</em> = 48, 22 girls). In the behavioral part of the study, where children discriminated between two click trains varied around frequencies of 16, 27, 40 and 83 Hz, we identified the shift toward better performance for the frequencies higher than 40 Hz. To dig into neurophysiological mechanisms of this process we recorded 28-channels EEG while similar auditory clicks were presented in trains of 500 ms with interstimulus intervals of 800–1000 ms. We focused on brain correlates of temporal and pitch-related processing — the intertrial-phase coherence at the frequency of stimulation (ITPC) and sustained wave (SW). ITPC was more pronounced under the stimulation at frequencies of 27 and 40 Hz and served as a reliable predictor of click rate discrimination at 27 Hz. Conversely, the SW exhibited a larger amplitude under the stimulation at 40 and 83 Hz and explained the variance in click rate discrimination at 40 Hz, with higher SW amplitude correlating with better performance. Our results elucidate the association of ITPC and SW with specific aspects of auditory perception in children, which might help to understand abnormalities in these responses seen in neurodevelopmental disorders.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"220 ","pages":"Article 113304"},"PeriodicalIF":2.6,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145645980","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}
Giuseppe A. Chiarenza , Valeria Peluso , Min Li , Ying Wang , Tania Perez-Ramirez , Leslie S. Prichep , Pedro Valdes-Sosa , Rolando J. Biscay , Jorge Bosch-Bayard
{"title":"Neurophysiological differentiation of Boder's dyslexia subtypes using harmonised quantitative EEG cross-spectra","authors":"Giuseppe A. Chiarenza , Valeria Peluso , Min Li , Ying Wang , Tania Perez-Ramirez , Leslie S. Prichep , Pedro Valdes-Sosa , Rolando J. Biscay , Jorge Bosch-Bayard","doi":"10.1016/j.ijpsycho.2025.113306","DOIUrl":"10.1016/j.ijpsycho.2025.113306","url":null,"abstract":"<div><div>Developmental dyslexia is a heterogeneous disorder classically divided into distinct subtypes. Elena <span><span>Boder's, 1973</span></span> model conceptualised reading and spelling as functions of distributed, interactive neural networks that require a dynamic interplay between visual-gestalt and analytic-auditory processes. Disruption of this interplay produces three main dyslexic subtypes—dysphonetic (DD), dyseidetic (DYD), and mixed (MD). These subtypes have also been described in Italian speakers, and recent research suggests they correspond to specific neurophysiological patterns.</div><div>In this study, we analysed quantitative EEG (qEEG) from a cohort of 227 children. The dyslexic group comprised DD (n = 169; 110M/59F, age 7–15), DYD (n = 18; 17M/1F, age 7–15), and MD (n = 40; 25M/15F, age 7–18), compared to 100 age-matched typically developing controls (58M/42F, age 6–16). Methodologically, we moved beyond conventional power analysis by employing a stable and sparse regression classifier (SSRC) based on harmonised cross-spectral complex z-scores. This approach is neurophysiologically grounded in the view that reading emerges from the dynamic interplay within distributed cerebral networks. We therefore hypothesised that dyslexia subtypes would be best discriminated by distinct patterns of functional connectivity, which are directly captured by cross-spectral metrics. Consistent with this, while conventional log-spectral measures showed poor subtype discrimination, our cross-spectral analysis revealed distinct connectivity patterns that differentiated the DD, DYD, and MD groups. Classification accuracy was high (areas under the ROC: DD vs DYD = 0.85; DD vs MD = 0.94; DYD vs MD = 0.78), and dyslexic subtypes were clearly separated from controls using fewer variables.</div><div>These findings provide the first neurophysiological validation of Boder's subtypes, demonstrating that DD and DYD reflect distinct network dysfunctions. The partial overlap between dysphonetic and mixed groups aligns with clinical evidence that MD represents a more severe dysphonetic form. Overall, our results highlight the potential of qEEG connectivity biomarkers to refine dyslexia diagnosis and support personalised interventions.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"220 ","pages":"Article 113306"},"PeriodicalIF":2.6,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145702910","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(25)00808-6","DOIUrl":"10.1016/S0167-8760(25)00808-6","url":null,"abstract":"","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"219 ","pages":"Article 113312"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145790044","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":"Reward processing under illusion of control: The sensitivity of the feedback-related negativity to prediction errors is not altered when random outcomes are perceived as the consequence of one's own actions","authors":"Gábor Csifcsák , Matthias Mittner","doi":"10.1016/j.ijpsycho.2025.113300","DOIUrl":"10.1016/j.ijpsycho.2025.113300","url":null,"abstract":"<div><div>The feedback-related negativity (FRN) has been associated both with the cortical processing of reward and salience prediction errors (RPEs/SPEs), and with behavioral adjustments that optimize performance. While the FRN is sensitive to response-feedback contingencies, it remains to be explored how this waveform is influenced by random outcomes during reinforcement learning (RL) while participants develop an illusion of control (IoC). We present novel analyses of data from a previous study (Csifcsák et al., 2020), in which a group of healthy adults was intermittently exposed to compromised control over outcomes (“yoking”). Earlier, we reported effects of yoking on latent parameters of RL and oscillatory activity during decision-making, whereas now we analyzed whether the FRN was also sensitive to our controllability manipulation. Participants were randomized to “control” or “yoked” groups, differing only in their level of control over outcomes during an RL task. The FRN was analyzed both in terms of its valence-sensitivity and with respect to its association with single-trial RPEs/SPEs. Bayesian statistics confirmed comparable ratings of perceived control in the two groups, indicating IoC for yoked participants. Although response accuracy was at chance level during compromised outcome controllability, the FRN was statistically indistinguishable between the two groups, as revealed by a multitude of analytical approaches. We conclude that under IoC, the FRN is not sensitive to response-outcome contingencies, and thus, it does not reflect drops in performance. These findings suggest that the cortical analysis of outcomes is dominated by higher-order cognitive/affective states when predictions about future events are unreliable.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"219 ","pages":"Article 113300"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145589717","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":"Music therapy and vagally mediated heart rate variability: A systematic review and narrative synthesis","authors":"Bettina Flater , Are Brean , Daniel S. Quintana","doi":"10.1016/j.ijpsycho.2025.113288","DOIUrl":"10.1016/j.ijpsycho.2025.113288","url":null,"abstract":"<div><h3>Background</h3><div>An increasing body of evidence supports the use of music therapy for improving health and wellbeing. In parallel, there has also been a rising interest in the use of biomarkers to assess its impact. One such biomarker is vagally mediated heart rate variability (vmHRV), which is a non-invasive measure of cardiac parasympathetic nervous system activity. However, the influence of music therapy on vmHRV is currently unclear.</div></div><div><h3>Methods</h3><div>A literature search was performed in December 2023/January 2024 and updated in March 2025. Data related to vmHRV was extracted and risk of bias was evaluated. A narrative synthesis was performed according to the Synthesis Without Meta-analysis (SWiM) guidelines with an effect direction plot.</div></div><div><h3>Results</h3><div>Twenty-eight studies were included. There was large heterogeneity in study samples, contexts, music therapy interventions, and HRV measurement methods. There was also a high risk of bias. The results indicated increased vmHRV during music therapy. There was also an association between improved vmHRV and other positive health outcomes in these studies.</div></div><div><h3>Discussion</h3><div>While current evidence indicates that there are potential positive effects of music therapy on vmHRV, more high-quality research, especially regarding HRV methodology, interpretation and reporting, is needed. A high risk of bias, small sample sizes and heterogeneity in all aspects of the studies prevents any clear conclusions based on the current evidence.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"219 ","pages":"Article 113288"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145477187","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":"Neurophysiological distinctions between spatial and temporal context in episodic memory","authors":"César Torres-Morales, Selene Cansino","doi":"10.1016/j.ijpsycho.2025.113302","DOIUrl":"10.1016/j.ijpsycho.2025.113302","url":null,"abstract":"<div><div>Episodic memory refers to our ability to mentally retain personal experiences that occurred in a particular spatial and temporal context. Brain activity distinctions for spatial and temporal contexts have been observed via unicellular recordings and functional magnetic resonance imaging. However, these distinctions have not been examined using electrophysiological recordings of neural populations, such as event-related potentials (ERPs), because spatial and temporal contexts have been assessed separately. The aim was to examine electrophysiological activity distinctions between spatial and temporal contexts during encoding and retrieval. ERPs were recorded in 30 participants while they performed an associative task in which pairs of images were presented sequentially. During retrieval, participants identified whether the pair of images was spatially modified, temporally modified, identical, or new. The retrieval of spatial context was superior to that of temporal context. During the presentation of the second image of the pair, a frontal slow wave demonstrated subsequent memory effects for the correct temporal context. The FN400 was present during the recollection of the temporal context, and the parietal old/new effect was present during the recollection of the spatial context, both of which occurred when the first image of the pair was displayed. These patterns revealed that the temporal context (compared with the spatial context) required further encoding strategies and a strong distinction from familiarity at retrieval. Therefore, spatial and temporal contexts exhibit different brain activities during encoding and retrieval.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"219 ","pages":"Article 113302"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145617822","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 novel approach to affect induction using dynamic social stimuli","authors":"Anna-Maria Kisić , Ralf Schäfer , Kirsten Dammertz-Hölterhoff , Mahboobeh Dehghan-Nayyeri , Valentina Niccolai , Ulrike Dinger","doi":"10.1016/j.ijpsycho.2025.113289","DOIUrl":"10.1016/j.ijpsycho.2025.113289","url":null,"abstract":"<div><div>Humans are inherently social beings who depend on successful social interactions. Understanding how different social stimuli elicit emotional responses is crucial for both psychological and physiological research. This study aimed to develop and validate dynamic stimulus material depicting social interactions and perspective-taking. Specifically, it examined whether emotionally charged video sequences of brief hand interactions elicit affect-specific subjective and psychophysiological response patterns.</div><div>A total of 81 healthy participants (42 female, 39 male) viewed video clips of hand interactions across four emotional contacts (Love, Neutral, Pain, and Rejection) and three perspectives (Agent, Interaction partner, and Observer). Participants rated arousal and valence using the Self-Assessment Manikin (SAM), while electrodermal activity (EDA) and heart rate (HR) were simultaneously recorded as psychophysiological indicators.</div><div>Analyses revealed significant effects of the stimuli on both subjective affect ratings and psychophysiological reactivity. SAM ratings of arousal and valence varied across emotional contacts, with perspective additionally influencing arousal. Subjective arousal was highest for Pain and Rejection, with both the Agent and Observer perspective eliciting higher arousal than the Interaction partner perspective. For subjective valence, Love was rated most positively, Pain most negatively. Similar significant effects of emotional contact, perspective, and their interactions were also observed in psychophysiological measures (EDA, HR), with Rejection inducing the highest EDA and HR. These findings demonstrate that the newly developed stimuli effectively induce distinct affective responses, providing a valuable tool for future research on affect perception and processing.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"219 ","pages":"Article 113289"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145544213","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":"Cardiac sympathetic-parasympathetic activity and reactivity during mentalizing in healthy young adults","authors":"Bo-Cheng Hsu , Chia-Ying Weng","doi":"10.1016/j.ijpsycho.2025.113290","DOIUrl":"10.1016/j.ijpsycho.2025.113290","url":null,"abstract":"<div><div>Mentalizing—the ability to understand and attribute mental states to others—relies on effective self-regulation and social-cognitive processing, both of which may be shaped by cardiac autonomic responses. While prior research has primarily emphasized the role of cardiac parasympathetic (PSNS) activity in social cognition, the contribution of cardiac sympathetic (SNS) activity and its dynamic interaction with PSNS remains underexplored. This study simultaneously investigated resting and task-related cardiac sympathetic-parasympathetic activity and reactivity to examine the associations with mentalizing performance in healthy young adults (<em>N</em> = 120). Resting heart rate variability and systolic time intervals were used to index cardiac PSNS and SNS activity, respectively, with phasic reactivity calculated as percentage change scores during mentalizing performance. Hierarchical regression analyses showed that higher cardiac PSNS activity and lower cardiac SNS activity at rest jointly predicted better mentalizing performance. Importantly, reduced cardiac SNS reactivity—but not cardiac PSNS reactivity—was a stronger predictor of mentalizing performance, and further mediated the relationship between resting cardiac autonomic activity and mentalizing performance. These findings highlighted the importance of cardiac SNS control, alongside cardiac PSNS control, in supporting socio-cognitive processing. This study suggested the understanding of efficient regulation to physiological arousal and advocated for an integrative cardiac psychophysiological model of social cognition that incorporates both cardiac sympathetic-parasympathetic branches.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"219 ","pages":"Article 113290"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145544228","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}
Shouying Wang , Jiyuan Zhang , Rui Zhang , Zidan Li , Can Zhang , Zongya Zhao , Ting Pang , Zhixian Gao , Zhenghui Wang , Yi Yu , Wenjie Ren , Chang Wang
{"title":"MAMF-GCN model for anxious and non-anxious depression classification and neuroimaging marker recognition","authors":"Shouying Wang , Jiyuan Zhang , Rui Zhang , Zidan Li , Can Zhang , Zongya Zhao , Ting Pang , Zhixian Gao , Zhenghui Wang , Yi Yu , Wenjie Ren , Chang Wang","doi":"10.1016/j.ijpsycho.2025.113301","DOIUrl":"10.1016/j.ijpsycho.2025.113301","url":null,"abstract":"<div><h3>Background</h3><div>Depression is a prevalent psychological disorder, and distinguishing anxious from non-anxious depression and identifying neuroimaging markers are challenges.</div></div><div><h3>Method</h3><div>In this study, we used public data from the REST-meta-MDD consortium, selecting 158 patients with anxious depression and 108 with non-anxious depression. We computed multiple neuroimaging metrics, including fractional amplitude of low-frequency fluctuations (fALFF), degree centrality (DC), regional homogeneity (ReHo), voxel-mirrored homotopic connectivity (VMHC), and functional connectivity (FC). We proposed the multi-scale adaptive multi-channel fusion deep graph convolutional network (MAMF-GCN) for anxious and non-anxious depression classification. This model incorporated both neuroimaging-derived features and relevant non-imaging clinical information, including site, age, gender, and Hamilton Depression Rating Scale (HAMD) scores. Furthermore, we applied the gradient backpropagation module to screen potential neuroimaging markers for depression subtyping.</div></div><div><h3>Result</h3><div>Our approach achieved outstanding classification results, with accuracy (ACC) of 98.12 %, sensitivity (SEN) of 99.41 %, specificity (SPE) of 97.46 %, F1-score of 98.38 %, and area under the curve (AUC) of 0.9867. Compared to state-of-the-art methods, the proposed MAMF-GCN model demonstrated superior performance. Ablation experiments confirmed that the MAMF-GCN model effectively utilizes non-imaging clinical information to significantly improve classification performance. Utilizing the gradient backpropagation module, we successfully pinpointed the top ten most discriminative features. Furthermore, we identified the cerebellar network as playing a critical role in differentiating anxious from non-anxious depression, with functional connectivity in the visual, auditory, and motor control networks serving as potential markers.</div></div><div><h3>Conclusions</h3><div>This method highly effective in classifying anxious and non-anxious depression and in identifying potential neuroimaging markers, thus holding significant clinical application value.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"219 ","pages":"Article 113301"},"PeriodicalIF":2.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145617821","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}