Biological Psychology最新文献_第4页

Unmasking deceptive decisions in a two-player competitive game: Integrating ERPs, spectral-perturbation signatures, and interpretable neural-network decoding 揭露两人竞争博弈中的欺骗性决策：整合erp、频谱摄动特征和可解释的神经网络解码。

IF 2.9 3区医学

Biological Psychology Pub Date : 2026-03-01 Epub Date: 2026-03-10 DOI: 10.1016/j.biopsycho.2026.109233

Yiyu Chen , Taeho Kang , Christian Wallraven

{"title":"Unmasking deceptive decisions in a two-player competitive game: Integrating ERPs, spectral-perturbation signatures, and interpretable neural-network decoding","authors":"Yiyu Chen , Taeho Kang , Christian Wallraven","doi":"10.1016/j.biopsycho.2026.109233","DOIUrl":"10.1016/j.biopsycho.2026.109233","url":null,"abstract":"<div><div>This study explores the feasibility of decoding deceptive or lying behavior from electroencephalography (EEG) neural signatures in a novel, interactive two-player game. The game was specifically designed to overcome previous methodological limitations in lie detection research, including insufficient incentives to lie, confounding lying with memory recollection, and a lack of control over participants’ risk-taking tendencies. The approach utilized a multi-modal EEG analysis framework that incorporated event-related potentials (ERP), event-related spectral perturbations (ERSP), as well as neural network-based single-trial decoding to differentiate between instructed and spontaneous lying or truth-telling. Key findings revealed that early ERP components (P200 and N200) successfully differentiated instructed truth-telling from other conditions, while a late ERP component (N300) and late positive potentials were indicative of deceit under varying conditions, correlating with participants’ risk-taking propensities. Alpha and low-beta spectral perturbations from the posterior regions further discriminated between the lying and truth-telling conditions. Cross-validated single-trial accuracy up to 57%—modest but reliable—demonstrates detectable deception signatures under strategic, incentive-calibrated interaction. This work advances our understanding of the neural dynamics of deception and lays a foundation for future real-world applications.</div></div>","PeriodicalId":55372,"journal":{"name":"Biological Psychology","volume":"205 ","pages":"Article 109233"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147445980","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

Peripheral nerve stimulation using tDCS can enhance reconsolidation but cannot mitigate retrieval-induced forgetting 使用tDCS刺激周围神经可以增强再巩固，但不能减轻检索诱发的遗忘。

IF 2.9 3区医学

Biological Psychology Pub Date : 2026-03-01 Epub Date: 2026-02-28 DOI: 10.1016/j.biopsycho.2026.109229

Elva Arulchelvan , Caledonia Steltzner , Sven Vanneste

{"title":"Peripheral nerve stimulation using tDCS can enhance reconsolidation but cannot mitigate retrieval-induced forgetting","authors":"Elva Arulchelvan , Caledonia Steltzner , Sven Vanneste","doi":"10.1016/j.biopsycho.2026.109229","DOIUrl":"10.1016/j.biopsycho.2026.109229","url":null,"abstract":"<div><h3>Introduction</h3><div>Memory reconsolidation refers to the process by which reactivated memories are rendered labile - and can be further strengthened or become sensitive to disruption. This study investigated whether non-invasive transcutaneous electrical stimulation of the greater occipital nerve (NITESGON) using direct current stimulation (tDCS) can modulate reconsolidation processes.</div></div><div><h3>Methods</h3><div>In a randomised, double-blind, placebo-controlled experiment, 38 healthy participants completed a Swahili-English paired-association task across three sessions over two consecutive days. Active or sham NITESGON was applied during reconsolidation, to test its effects on retrieval practice and retrieval-induced forgetting.</div></div><div><h3>Results</h3><div>Active NITESGON significantly enhanced memory reconsolidation, as evidenced by superior retrieval of previously consolidated pairs (i.e. <em>no-change</em> pairs) compared to sham stimulation. However, critically, we demonstrate that NITESGON did not mitigate retrieval-induced forgetting: both groups exhibited greater forgetting of competing associations (<em>competing</em> pairs) than non-competing ones (<em>original</em> pairs). This study also highlights how active NITESGON (compared to sham) significantly enhanced consolidation, but not acquisition or forgetting processes.</div></div><div><h3>Conclusion</h3><div>These findings demonstrate that peripheral nerve stimulation via tDCS can strengthen reconsolidation through retrieval practice, but does not alter retrieval-induced forgetting. This work elucidates the stage-specific influence of peripheral nerve stimulation on memory processes and highlights its potential translational value for conditions involving memory dysfunction.</div></div>","PeriodicalId":55372,"journal":{"name":"Biological Psychology","volume":"205 ","pages":"Article 109229"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147345775","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

Linking individual behavioral architecture to brain topological structure: A combined network analysis approach 连结个体行为架构与大脑拓扑结构：一种组合网络分析方法。

IF 2.9 3区医学

Biological Psychology Pub Date : 2026-03-01 Epub Date: 2026-03-06 DOI: 10.1016/j.biopsycho.2026.109235

Arianna Menardi , Zeynep Gökçen Özer , Antonino Vallesi , Giorgia Cona , Umberto Granziol

{"title":"Linking individual behavioral architecture to brain topological structure: A combined network analysis approach","authors":"Arianna Menardi , Zeynep Gökçen Özer , Antonino Vallesi , Giorgia Cona , Umberto Granziol","doi":"10.1016/j.biopsycho.2026.109235","DOIUrl":"10.1016/j.biopsycho.2026.109235","url":null,"abstract":"<div><div>In the connectome era, understanding how the brain supports various cognitive and behavioral functions requires moving beyond isolated domains to a multimodal network-level approach. This opens a new window into modeling how the interactions between neural and behavioral facets characterize the uniqueness of the individual. This study combines two different models of graph analysis, graph theory and exploratory graph analysis, to examine how large-scale brain network topology of 379 healthy adults from the Human Connectome Project relates to the individual mental architecture. We modeled nonlinear brain-behavior relationships using Generalized Additive Models. Specifically, we investigated the extent to which the topological properties of the canonical seven resting-state networks (RSNs) contribute in explaining the individual performance across seven cognitive and behavioral domains: Mental Health, Externalizing Problems, Higher level Cognitive Functions, Core Cognitive Functions, Substance use/abuse, Delay Discounting Task, and Pain. Our results reveal domain-specific signatures of integration and segregation among RSNs and cognitive/behavioral performance. For instance, adaptive functions such as higher level and core cognitive functions were associated with greater integration of the fronto-parietal network and segregation of the default mode network. On the other hand, maladaptive domains such as substance abuse and impulsivity were linked to increased integration in sensorimotor and limbic networks. Single-node analysis further identified key hubs whose topological features aligned with distinct cognitive and behavioral profiles. Our findings highlight the advantage of using a network neuroscience approach to investigate the complex and dynamic nature of human cognition and behavior.</div></div>","PeriodicalId":55372,"journal":{"name":"Biological Psychology","volume":"205 ","pages":"Article 109235"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147373556","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

Cardiac interoception in action: Modulation after a stress induction with a speech task 心脏内感受的作用：言语任务应激诱导后的调节。

IF 2.9 3区医学

Biological Psychology Pub Date : 2026-03-01 Epub Date: 2026-02-21 DOI: 10.1016/j.biopsycho.2026.109228

Lorena Desdentado , Micah G. Allen , Jasmin Schultze , Leah Banellis , Jéssica Navarro-Siurana , Niia Nikolova , Rosa M. Baños , Olga Pollatos

{"title":"Cardiac interoception in action: Modulation after a stress induction with a speech task","authors":"Lorena Desdentado , Micah G. Allen , Jasmin Schultze , Leah Banellis , Jéssica Navarro-Siurana , Niia Nikolova , Rosa M. Baños , Olga Pollatos","doi":"10.1016/j.biopsycho.2026.109228","DOIUrl":"10.1016/j.biopsycho.2026.109228","url":null,"abstract":"<div><h3>Objective</h3><div>Interoception has mostly been examined at rest and as a trait variable. However, preliminary research suggests that interoceptive processes might fluctuate in response to external demands. This study aimed to investigate whether cardiac interoception would change in response to acute stress.</div></div><div><h3>Method</h3><div>A sample of 139 adult non-clinical individuals performed either a 3-minute unprepared speech (Stress condition) or a reading task (Control condition). Cardiac interoception was measured using the heart rate discrimination task (HRD), together with self-report measures, which were administered before and after the speech or reading task. The HRD measures both interoceptive sensitivity (i.e., the ability to discriminate between faster and slower tone sequences relative to one’s own heart rate) and metacognitive sensitivity (i.e., the capacity to evaluate the accuracy of one’s decisions based on confidence ratings), along with other measures such as cardiac belief bias and precision.</div></div><div><h3>Results</h3><div>Participants in the Stress (vs. Control) condition showed a significant increase in interoceptive sensitivity (<em>d′)</em>. Participants in the Stress condition also reported paying greater attention to their heart signals during the oral task compared to those in the Control condition. No significant effects were observed in other interoceptive outcomes.</div></div><div><h3>Discussion</h3><div>These findings suggest that the sensitivity in processing cardiac signals, along with increased self-reported attention to them, might be enhanced when facing acute stress. Future research should confirm this interoceptive pattern and investigate whether it is preserved or impaired in clinical populations.</div></div>","PeriodicalId":55372,"journal":{"name":"Biological Psychology","volume":"205 ","pages":"Article 109228"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147272770","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

EEG-based biomarkers for psychosis: Comparative performance of support vector machines and deep neural networks 基于脑电图的精神病生物标志物：支持向量机和深度神经网络的比较性能。

IF 2.9 3区医学

Biological Psychology Pub Date : 2026-03-01 Epub Date: 2026-03-03 DOI: 10.1016/j.biopsycho.2026.109232

Mahdi Naeim, Mohammad Narimani

{"title":"EEG-based biomarkers for psychosis: Comparative performance of support vector machines and deep neural networks","authors":"Mahdi Naeim, Mohammad Narimani","doi":"10.1016/j.biopsycho.2026.109232","DOIUrl":"10.1016/j.biopsycho.2026.109232","url":null,"abstract":"<div><div>Electroencephalography (EEG) provides a widely accessible window into neural abnormalities in psychosis-spectrum disorders, yet the comparative utility of classical machine learning and deep learning under limited-sample conditions remains uncertain. This study compared support vector machines (SVM) and deep neural networks (DNN) in classifying psychosis based on task-related EEG collected during the Ultimatum Game. Data from 43 participants (19 patients, 24 controls) were preprocessed and used to extract spectral features, nonlinear dynamics (Hjorth parameters, entropy, fractal dimension), and functional connectivity measures. Classification was performed using 5-fold subject-wise cross-validation, and feature importance was evaluated via permutation and SHapley Additive exPlanations (SHAP) analyses. Support Vector Machine (SVM) achieved superior performance (Accuracy = 89.9%, AUC = 0.959) relative to DNN (Accuracy = 78.1%, AUC = 0.879). Nonlinear features, particularly Hjorth complexity and activity, together with delta/theta power, were the strongest contributors to discrimination. These findings indicate that, in small but feature-rich EEG datasets, classical machine learning provides more stable and interpretable performance than deep learning. Nonlinear and low-frequency indices emerge as promising candidate biomarkers in psychosis-spectrum disorders, with potential applications in early screening, treatment monitoring, and individualized neurofeedback. Larger multisite datasets will be essential to validate their generalizability and clinical utility.</div></div>","PeriodicalId":55372,"journal":{"name":"Biological Psychology","volume":"205 ","pages":"Article 109232"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147367362","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

Neural gender stereotype asymmetry in bidirectional word-face priming 双向词-脸启动的神经性别刻板印象不对称。

IF 2.9 3区医学

Biological Psychology Pub Date : 2026-03-01 Epub Date: 2026-03-09 DOI: 10.1016/j.biopsycho.2026.109240

Luana Serafini , Francesca Pesciarelli

{"title":"Neural gender stereotype asymmetry in bidirectional word-face priming","authors":"Luana Serafini , Francesca Pesciarelli","doi":"10.1016/j.biopsycho.2026.109240","DOIUrl":"10.1016/j.biopsycho.2026.109240","url":null,"abstract":"<div><div>This study investigates the behavioral and neural correlates of implicit and automatic gender stereotyping at the intersection of language and face processing, focusing on the bidirectional flow of gender-stereotypical information and previously observed asymmetries in stereotype processing. We recorded response times (RTs) and Event-Related Potentials (ERPs) to a target face (male, female) preceded by stereotypically associated words (e.g., <em>conducente</em> “driver”, <em>badante</em> “caregiver”), or to stereotypically associated target words preceded by a face (male, female). Participants performed a gender categorization task on target faces and a lexical decision task on target words/non-words. RTs showed typical priming effects for target faces, but an asymmetrical priming effect for target words: faster responses to stereotypically female words preceded by a gender-congruent face, whereas faster responses to stereotypically male words preceded by a gender-incongruent face. ERPs showed a gender stereotype asymmetry for target faces and only partially for target words. Female faces elicited a larger P300 and LPP when preceded by stereotypically gender-incongruent than -congruent prime words; male faces elicited a larger N400 when preceded by stereotypically gender-incongruent than -congruent prime words. Similarly, stereotypically male words elicited a larger P300 when preceded by a gender-incongruent than congruent face. Our findings reveal robust neural asymmetries in gender stereotype processing, extending beyond language, underscoring the need to treat female- and male-related biases as distinct cognitive phenomena in both future research and intervention.</div></div>","PeriodicalId":55372,"journal":{"name":"Biological Psychology","volume":"205 ","pages":"Article 109240"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147437959","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 mechanistic role of psychological expectations in human-humanoid robot cooperation 心理期望在人-人形机器人合作中的机制作用

IF 2.9 3区医学

Biological Psychology Pub Date : 2026-02-01 Epub Date: 2026-01-20 DOI: 10.1016/j.biopsycho.2026.109202

Xiyuan Wang , Mingyue Zuo , John W. Schwieter , Huanhuan Liu

{"title":"The mechanistic role of psychological expectations in human-humanoid robot cooperation","authors":"Xiyuan Wang , Mingyue Zuo , John W. Schwieter , Huanhuan Liu","doi":"10.1016/j.biopsycho.2026.109202","DOIUrl":"10.1016/j.biopsycho.2026.109202","url":null,"abstract":"<div><div>When collaborating, humans’ decisions are influenced by the perceived cooperative willingness of their partners, and choices are continuously adjusted based on such willingness. In this study, we manipulated the cooperative willingness of different kinds of partners (human vs. humanoid robots) and employed a Rescorla-Wagner (RW) reinforcement learning model to investigate how psychological expectations affect human cooperation with nonhuman agents (n = 25 in the final analyses). The results showed similar overt behavioral performance, but distinct underlying learning dynamics and neural mechanisms depending on whether participants interacted with humans or humanoid robots. Specifically, the neural mechanisms underlying these decisions differed between partner types: Interactions with human agents elicited greater activation in reward-related regions of the putamen, whereas interactions with humanoid robot agents involved stronger activation in the precentral gyrus, a region implicated in embodied cognition. Moreover, participants exhibited distinct patterns of functional connectivity depending on the type of partner. Despite behavioral similarities, these findings highlight that psychological expectations shape decision making for human and humanoid robot partners through dissociable neural processes, reflecting type-specific cognitive representations. The findings advance our understanding of the psychological mechanisms underlying human-humanoid robot interaction and provide neuroscientific insight into the design of effective human-humanoid robot cooperation systems.</div></div>","PeriodicalId":55372,"journal":{"name":"Biological Psychology","volume":"204 ","pages":"Article 109202"},"PeriodicalIF":2.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025283","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 closeness and reward sensitivity enhance corticostriatal function during experiences of shared rewards 社会亲近感和奖励敏感性在共享奖励体验中增强皮质纹状体功能。

IF 2.9 3区医学

Biological Psychology Pub Date : 2026-02-01 Epub Date: 2026-01-30 DOI: 10.1016/j.biopsycho.2026.109209

David V. Smith , Ori Zaff , James B. Wyngaarden , Jeffrey B. Dennison , Daniel Sazhin , Jason Chein , Michael McCloskey , Lauren B. Alloy , Johanna M. Jarcho , Dominic S. Fareri

{"title":"Social closeness and reward sensitivity enhance corticostriatal function during experiences of shared rewards","authors":"David V. Smith , Ori Zaff , James B. Wyngaarden , Jeffrey B. Dennison , Daniel Sazhin , Jason Chein , Michael McCloskey , Lauren B. Alloy , Johanna M. Jarcho , Dominic S. Fareri","doi":"10.1016/j.biopsycho.2026.109209","DOIUrl":"10.1016/j.biopsycho.2026.109209","url":null,"abstract":"<div><div>Although prior research has demonstrated enhanced striatal response when sharing rewards with close social connections, less is known about how individual differences affect ventral striatal (VS) activation and connectivity when experiencing rewards within social contexts. Given that self-reported reward sensitivity and level of substance use have been associated with differences in VS activation, we set out to investigate whether these factors would be independently associated with enhancements to neural reward responses within social contexts. In this pre-registered study, participants (N = 45) underwent fMRI while playing a card guessing game in which correct or incorrect guesses resulted in monetary gains and losses that were shared evenly with either a close friend, stranger (confederate), or non-human partner. Consistent with our prior work, we found increased VS activation when sharing rewards with a socially close peer as opposed to an out-of-network stranger. As self-reported reward sensitivity increased, the difference in VS response to rewards shared with friends and strangers decreased. We also found enhanced connectivity between the VS and temporoparietal junction when sharing rewards with close friends as opposed to strangers. Finally, exploratory analyses revealed that as reward sensitivity and sub-clinical substance use increase, the difference in VS connectivity with the right fusiform face area increases as a function of social context. These findings demonstrate that responsivity to the context of close friends may be tied to individual reward sensitivity or sub-clinical substance use habits; together these factors may inform predictions of risk for future mental health disorders.</div></div>","PeriodicalId":55372,"journal":{"name":"Biological Psychology","volume":"204 ","pages":"Article 109209"},"PeriodicalIF":2.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146100597","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

Shaping gamma oscillations through sensory stimulation: A systematic review in healthy adults 通过感觉刺激形成伽马振荡：对健康成人的系统回顾。

IF 2.9 3区医学

Biological Psychology Pub Date : 2026-02-01 Epub Date: 2026-02-02 DOI: 10.1016/j.biopsycho.2026.109211

Arianna Rebecca Longo , Nadia Bolognini , Laura Zapparoli

{"title":"Shaping gamma oscillations through sensory stimulation: A systematic review in healthy adults","authors":"Arianna Rebecca Longo , Nadia Bolognini , Laura Zapparoli","doi":"10.1016/j.biopsycho.2026.109211","DOIUrl":"10.1016/j.biopsycho.2026.109211","url":null,"abstract":"<div><div>Gamma-band brain activity (30–80 Hz) plays a key role in sensory processing and cognitive functioning and is increasingly studied as a potential biomarker for neurological and psychiatric disorders. Recently, Gamma ENtrainment Using Sensory stimulation (GENUS) has emerged as a promising non-invasive approach to modulate this activity, with protocols targeting entrainment of intrinsic neural rhythms. However, substantial methodological variability persists across studies, limiting comparability and reproducibility. To better understand current practices and identify sources of heterogeneity, we reviewed 22 studies investigating gamma-band entrainment through visual, auditory, and multisensory stimulation in healthy adults. We summarized the main stimulation parameters and analytic methods used, discussed critical methodological challenges in evaluating entrainment efficacy, and proposed directions to improve standardization and interpretability. Our findings indicate that sensory modality, stimulus features (i.e., frequency, color), and individual differences shape gamma responses and must be carefully controlled in research and clinical settings. Although 40 Hz is the most frequently used frequency in entrainment studies, optimal effects vary across individuals and brain regions. Spatial patterns of activation also vary: visual stimulation primarily engages occipital-parietal regions, auditory protocols extend to fronto-temporal areas, and multisensory paradigms elicite broader and sometimes superadditive responses. Promising stimulation strategies for enhancing both response strength and participant comfort include invisible flicker, sinusoidal tones, and cross-sensory stimulation. This review highlights important implications for developing therapeutic GENUS protocols and provides guidelines for the stimulation and measurement of gamma responses in experimental and clinical settings.</div></div>","PeriodicalId":55372,"journal":{"name":"Biological Psychology","volume":"204 ","pages":"Article 109211"},"PeriodicalIF":2.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146121049","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

Impact of cognitive load on pupil dilation: A comparative study of young and older adults 认知负荷对瞳孔扩张的影响：年轻人和老年人的比较研究。

IF 2.9 3区医学

Biological Psychology Pub Date : 2026-02-01 Epub Date: 2026-02-03 DOI: 10.1016/j.biopsycho.2026.109210

Manon Lenain , Laurent Sparrow , Laurent Ott , Yann Coello

{"title":"Impact of cognitive load on pupil dilation: A comparative study of young and older adults","authors":"Manon Lenain , Laurent Sparrow , Laurent Ott , Yann Coello","doi":"10.1016/j.biopsycho.2026.109210","DOIUrl":"10.1016/j.biopsycho.2026.109210","url":null,"abstract":"<div><div>Age-related cognitive decline increases the risk of neurodegenerative disorders and contributes to loss of autonomy in older adulthood. The noradrenergic system, particularly the locus coeruleus–noradrenergic (LC-NA) network, plays a crucial role in sustaining cognitive function, and its dysfunction has been implicated in age-related cognitive deterioration. Pupillary responses during cognitively demanding tasks provide a non-invasive index of LC-NA system integrity, as they closely reflect cognitive effort and resource allocation. In the present study, younger and older adults performed an auditory working memory task involving the immediate oral recall of digits sequences of varying lengths (3, 6, or 9-digits) while pupil size was continuously recorded. The data showed that performance declined with increasing sequence length across both groups. However, under higher cognitive load (6 and 9-digit conditions), older adults exhibited significantly reduced pupillary reactivity compared to younger participants. Moreover, pupil dilation correlated with both age and Stroop interference scores, indicating an association between pupillary dynamics and executive (inhibition) control. These findings suggest that although working memory performance was largely preserved in older adults, their attenuated pupillary responses to increasing task demands may reflect early functional alterations in the LC-NA system. Pupillary reactivity thus emerges as a promising, non-invasive biomarker of cognitive control and age-related neural integrity.</div></div>","PeriodicalId":55372,"journal":{"name":"Biological Psychology","volume":"204 ","pages":"Article 109210"},"PeriodicalIF":2.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146127857","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