CortexPub Date : 2026-01-01Epub Date: 2025-11-15DOI: 10.1016/j.cortex.2025.11.003
Jarrad A.G. Lum , Christine N. Moreau , Li-Ann Leow , Welber Marinovic , Sarah J. Lum , Marc F. Joanisse , Laura J. Batterink
{"title":"Beta-band modulation reveals the cortical dynamics of auditory statistical learning in children","authors":"Jarrad A.G. Lum , Christine N. Moreau , Li-Ann Leow , Welber Marinovic , Sarah J. Lum , Marc F. Joanisse , Laura J. Batterink","doi":"10.1016/j.cortex.2025.11.003","DOIUrl":"10.1016/j.cortex.2025.11.003","url":null,"abstract":"<div><div>Children's ability to extract statistical regularities from speech is considered fundamental to lexical, syntactic, and grammatical development. However, the neural oscillatory mechanisms supporting this process in childhood remains poorly understood. While beta-band oscillations have been linked to statistical learning in visual and motor domains, it is unclear whether similar dynamics support auditory statistical learning in children. In this study, we recorded electroencephalography (EEG) from children aged 8–12 years as they listened to a continuous stream of trisyllabic nonwords (e.g., dapiku), where syllable order within each nonword was fixed (high predictability), but transitions between nonwords were variable (low predictability). Beta power was significantly lower for the more predictable second and third syllables relative to the less predictable first syllable. This effect emerged only after repeated exposure and was localised to left prefrontal electrodes. Beta power also correlated with post-exposure recognition accuracy. Additional learning-related modulations were observed in the theta-alpha and delta-theta bands, suggesting broader oscillatory engagement. These findings indicate that auditory statistical learning in middle childhood engages frequency-specific neural dynamics, with beta power modulations showing parallel effects to those observed in other modalities.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"194 ","pages":"Pages 35-49"},"PeriodicalIF":3.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145660567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
CortexPub Date : 2026-01-01Epub Date: 2025-11-25DOI: 10.1016/j.cortex.2025.11.008
Amy L. Lebkuecher , H. Branch Coslett , Laurel J. Buxbaum
{"title":"The cognitive neuropsychology of action semantics: A review","authors":"Amy L. Lebkuecher , H. Branch Coslett , Laurel J. Buxbaum","doi":"10.1016/j.cortex.2025.11.008","DOIUrl":"10.1016/j.cortex.2025.11.008","url":null,"abstract":"<div><div>The conceptual knowledge that mediates our ability to use familiar objects, understand viewed actions, and engage in communication about actions is often termed “action semantics”.</div><div>The underlying format, cognitive organization, and neural substrates of these representations are matters of active scientific investigation. This review synthesizes the large and diverse literature on action semantics in individuals with neurological disorders characterized by prominent motor deficits (e.g., Parkinson's disease and Amyotrophic lateral sclerosis), as well as those for whom motor deficits are often less prominent (e.g., Alzheimer's disease, Frontotemporal Dementia, stroke). Research in these two groups of disorders is strikingly “siloed” and offers many contradictory findings with respect to whether action semantic representations are abstract (i.e., “disembodied”) or grounded in sensory and motor features that reflect the way knowledge was acquired. Findings across these populations also disagree as to whether action semantic representations are organized somatotopically or with a semantic feature-based architecture, and mediated by anterior motor-related or relatively posterior sensory-related brain regions. Many of these disparate findings can be reconciled with consideration of a multidimensional, multimodal representational architecture mediated by a distributed left-lateralized network of brain regions. We provide suggestions for specific methodological approaches for research with neurological populations that may further our understanding of the format, organization, and neural substrates of action semantics.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"194 ","pages":"Pages 159-190"},"PeriodicalIF":3.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145780500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
CortexPub Date : 2026-01-01Epub Date: 2025-12-05DOI: 10.1016/j.cortex.2025.11.012
Mara Barberis , Ella Eycken , Pieter De Clercq , Robin Lemmens , Hugo Van hamme , Maaike Vandermosten
{"title":"Behavioral constructs and neural correlates of descriptive and responsive speech in post-stroke aphasia","authors":"Mara Barberis , Ella Eycken , Pieter De Clercq , Robin Lemmens , Hugo Van hamme , Maaike Vandermosten","doi":"10.1016/j.cortex.2025.11.012","DOIUrl":"10.1016/j.cortex.2025.11.012","url":null,"abstract":"<div><div>Discourse refers to language that extends beyond a single clause and is used to express ideas, feelings or to interact with others. Persons with post-stroke aphasia often encounter difficulties in discourse, which can severely impede everyday communication. In recent years, discourse has received more attention in both research and clinical practice due to its high ecological validity. However, little is known about the underlying behavioral constructs and neural correlates of discourse in post-stroke aphasia. In the current study, discourse was assessed in 49 persons with chronic aphasia following left-hemispheric (n = 39) or bilateral (n = 10) stroke using picture description from the CAT (descriptive speech) and verbal responses to everyday scenarios from the ANELT (responsive speech). Factor analysis and voxel-wise lesion symptom mapping were performed to investigate the underlying behavioral and neural constructs. Factor analysis revealed four latent constructs that explained 64% of the total variance in the discourse variables: grammatical, phonological, lexical-semantic and macrostructural. Fluency variables were spread across these four different factors. For example, digression was associated with word repetitions and filled pauses, while grammatical deficits were associated with speech rate and long pauses. After correction for multiple comparisons, only the lexical-semantic factor was significantly associated with a left cluster covering lesions in the inferior parietal, superior and middle temporal and lateral occipital regions. In conclusion, this study shows that discourse analysis can reveal both clustered and distributed dimensions and further establishes the role of the left inferior parietal and superior and middle temporal lobe in lexical-semantic abilities.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"194 ","pages":"Pages 143-158"},"PeriodicalIF":3.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145773915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
CortexPub Date : 2026-01-01Epub Date: 2025-11-20DOI: 10.1016/j.cortex.2025.11.005
Xiangfu Yang , Weiping Yang , Yinghua Yu , Yoshimichi Ejima , Jiajia Yang
{"title":"Increasing visual uncertainty modulates multisensory decision-making","authors":"Xiangfu Yang , Weiping Yang , Yinghua Yu , Yoshimichi Ejima , Jiajia Yang","doi":"10.1016/j.cortex.2025.11.005","DOIUrl":"10.1016/j.cortex.2025.11.005","url":null,"abstract":"<div><div>The brain integrates and transforms information from multiple senses to make optimal decisions, a process that is critical for navigating complex environments with perceptual uncertainty. Despite a growing consensus that individuals adapt flexibly to uncertain sensory input, whether increasing visual uncertainty influences the decision process itself or other, non-decision sensory processes during multisensory decision-making are unclear. Here, an audiovisual categorization task was used to examine the responses of human participants (N = 30) to visual and audiovisual stimuli under low-, medium-, and high-uncertainty conditions. Modeling the behavioral data using a drift‒diffusion model indicated that increased visual uncertainty in the audiovisual context decreased the evidence accumulation rate but had no effect on non-decision processes. Electrophysiological recordings confirmed and expanded upon these results: increased visual uncertainty in the audiovisual context reduced the amplitude during the late decision-making stage (300–380 msec) but had no effect on the amplitude during the early sensory encoding stage (140–220 msec). More importantly, electroencephalography analyses revealed that audiovisual integration in the early sensory encoding stage occurred robustly across all visual uncertainty conditions, whereas audiovisual integration in the late stage occurred only under medium and high visual uncertainty conditions. This study demonstrated that increased visual uncertainty modulates the decision process itself rather than early sensory encoding during multisensory decision-making. Moreover, multisensory integration strategies dynamically adapt to increasing visual uncertainty by engaging different mechanisms to maintain effective decision-making.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"194 ","pages":"Pages 50-62"},"PeriodicalIF":3.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145667623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Neurophysiological signature of working memory updating during encoding","authors":"Kathrin Sadus , Anna-Lena Schubert , Christoph Löffler , Wiebke Hemming , Dirk Hagemann","doi":"10.1016/j.cortex.2025.11.013","DOIUrl":"10.1016/j.cortex.2025.11.013","url":null,"abstract":"<div><div>Working memory (WM) has been extensively studied in cognitive psychology, with numerous tasks developed to measure its capacity. Among these, binding and updating tasks that assess the ability to build, maintain, and manipulate temporary relational representations have been shown to be particularly suitable for assessing WM capacity (WMC). In the present study, we investigated the specific processes involved in updating during WM encoding by comparing the electrophysiological signals in binding and updating tasks. In addition, we compared specific forms of updating demands by contrasting substitution and transformation processes. Finally, we examined whether individual differences in updating activity are related to WM performance. We recruited a heterogeneous sample of 151 participants (female = 89, <em>M</em><sub>age</sub> = 34.77, <em>SD</em> = 12.78) who completed a binding and two updating tasks while an EEG was recorded. Mass univariate cluster-based permutation analyses of event-related potentials consistently showed a temporally and spatially widespread cluster when comparing updating and binding. This cluster was characterized by an increased positivity associated with updating, appearing predominantly in the frontal regions during early time windows (approximately 130–350 msec after stimulus onset) and later shifting to the parietal regions (from approximately 350 msec onward). Additionally, when comparing transformation and substitution, we found an increase in positivity associated with transformation, peaking within a typical P3 time window (approximately 400 msec). Finally, we found that only individual differences in transformation-related activity were associated with individual differences in WMC.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"194 ","pages":"Pages 191-219"},"PeriodicalIF":3.3,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145780459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
CortexPub Date : 2025-12-01Epub Date: 2025-10-25DOI: 10.1016/j.cortex.2025.10.001
Bernd T. Douze , Antonia F. Ten Brink , H. Chris Dijkerman , Christoph Strauch
{"title":"Pupil responses objectively index pharmacologically altered tactile sensitivity","authors":"Bernd T. Douze , Antonia F. Ten Brink , H. Chris Dijkerman , Christoph Strauch","doi":"10.1016/j.cortex.2025.10.001","DOIUrl":"10.1016/j.cortex.2025.10.001","url":null,"abstract":"<div><div>Tactile perception is a subjective experience, yet it can be physiologically quantified. This offers new avenues for studying sensory processing in contexts where verbal feedback is limited or unreliable. A growing body of research uses changes in pupil size, showing that stronger tactile stimuli lead to greater pupil dilation. Building on this, we investigated whether pupil responses could serve as an objective measure of tactile sensitivity. To explore this, we pharmacologically manipulated tactile sensitivity in healthy participants (n = 32). In separate sessions, an anaesthetic cream or a placebo cream was applied to one forearm. At the beginning and/or end of each session, Von Frey assessments and a vibrotactile detection task were conducted to confirm the efficacy of the anaesthetic cream in reducing tactile sensitivity. During each session, pupil responses to vibrotactile stimuli applied to both the cream and non-cream arms were recorded. Our results confirmed that the anaesthetic cream significantly reduced the perceived intensity of tactile stimulation, an effect that persisted throughout the session. Crucially, we observed weaker pupil dilation responses to vibrotactile stimuli applied to the anaesthetised arm compared to the placebo or non-cream arm. Exploratory analyses showed that participants for whom the anaesthetic cream was most effective in reducing tactile sensitivity also showed the weakest pupil responses when the anaesthetised arm was stimulated. Overall, these findings demonstrate that the pupil response is a reliable and objective index of tactile sensitivity, highlighting its potential for studying sensory processing in populations where verbal feedback is limited or unreliable.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"193 ","pages":"Pages 90-104"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145463232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
CortexPub Date : 2025-12-01Epub Date: 2025-11-05DOI: 10.1016/j.cortex.2025.10.007
Natacha Cordonier , Olivier Piguet
{"title":"Social cognition in the nonfluent and logopenic variants of primary progressive aphasia: A review of variant-specific profiles","authors":"Natacha Cordonier , Olivier Piguet","doi":"10.1016/j.cortex.2025.10.007","DOIUrl":"10.1016/j.cortex.2025.10.007","url":null,"abstract":"<div><div>Beyond their predominant language impairments, primary progressive aphasias (PPA) are also marked by non-linguistic cognitive deficits. Among these, social cognition deficits have been understudied, particularly in the non-fluent (nfvPPA) and logopenic (lvPPA) variants. This review synthesizes behavioural and imaging data on emotion recognition, empathy, and theory of mind (ToM) in nfvPPA and lvPPA, and examines their potential contribution to the differential diagnosis. Evidence suggests that both variants exhibit social cognition deficits. Emotion recognition deficits are observed from disease onset in nfvPPA and lvPPA, although performance varies across modalities and tasks. Empathy appears relatively preserved in early stages, with cognitive aspects showing more variability than affective empathy. Theory of mind is consistently impaired in nfvPPA but remains largely unexplored in lvPPA. Limited comparative research and lack of ToM studies in lvPPA constrain our understanding of variant-specific profiles. However, combining emotion recognition with other cognitive measures shows potential to improve classification of these variants. Similarly, a more rapid decline in empathy in nfvPPA could contribute to differential diagnosis as the disease progresses. Finally, hypotheses based on anatomo-clinical correlates suggest distinct ToM deficits between variants. By highlighting variant-specific profiles and gaps in research, this review provides a comprehensive framework to guide future research, improve diagnostic accuracy and inform clinical management of these syndromes.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"193 ","pages":"Pages 171-190"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145556391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
CortexPub Date : 2025-12-01Epub Date: 2025-11-06DOI: 10.1016/j.cortex.2025.10.008
Erin Duricy , Corrine Durisko , Julie A. Fiez
{"title":"Lesion-symptom mapping reveals differential relationships between language and precise versus approximate numeracy","authors":"Erin Duricy , Corrine Durisko , Julie A. Fiez","doi":"10.1016/j.cortex.2025.10.008","DOIUrl":"10.1016/j.cortex.2025.10.008","url":null,"abstract":"<div><div>Numeracy, the foundation of mathematical processing, can be divided into two subcategories: approximate (quantity estimation) and precise numeracy (exact quantity). Loss of numeracy is commonly comorbid with aphasia following stroke, yet little is known about the neural basis of this relationship. We employed a support vector regression lesion-symptom mapping (SVR-LSM) analysis with N = 104 left hemisphere chronic stroke survivors to investigate the neural relationship between approximate and precise numeracy with language ability. Our results highlight key differences between how approximate and precise numeracy overlap with language processing regions. Approximate numeracy does not show a significant relationship to aphasia or language related regions, while precise numeracy shares considerable neural overlap with language areas and co-varies significantly with aphasia severity. The results support <em>a priori</em> hypotheses that the intraparietal sulcus (IPS) is crucially involved in approximation and additionally implicate regions including angular gyrus (AG), precentral gyrus, and anterior fusiform gyrus. In contrast, precise numeracy was linked to damage to the inferior frontal gyrus (IFG), AG, and anterior temporal cortex, as well as the caudate nucleus, thalamus, and posterior temporal regions. Overall, we provide evidence of strong lesion-deficit associations demonstrating distinct neural patterns between precise and approximate numeracy impairments. Crucially, we demonstrate that these subcategories have contrasting relationships with language processing.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"193 ","pages":"Pages 117-133"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145539459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
CortexPub Date : 2025-12-01Epub Date: 2025-10-24DOI: 10.1016/j.cortex.2025.10.002
Daniel Paromov , Thomas MD Augereau , Maxime Maheu , Benoit-Antoine Bacon , Andréanne Sharp , François Champoux
{"title":"Musical training shapes spatial cognition","authors":"Daniel Paromov , Thomas MD Augereau , Maxime Maheu , Benoit-Antoine Bacon , Andréanne Sharp , François Champoux","doi":"10.1016/j.cortex.2025.10.002","DOIUrl":"10.1016/j.cortex.2025.10.002","url":null,"abstract":"<div><div>Spatial cognition refers to the general ability to represent space, manipulate spatial information, and use concepts relating to this notion. Recent evidence suggests that brief multisensory training might improve this process, but the impact of long-term and intensive multisensory training on spatial cognition remains unexplored. The present study aims to examine the impact of musical training, a multisensory training involving the auditory function, on a body disorientation task with and without auditory cues. Thirty-eight participants were recruited and divided into two groups based on their musical experience (musicians and controls). They were asked to complete the Fukuda-Unterberger stepping task under four conditions: without any auditory input, and with auditory input originating at 0°, 45°, and 90° azimuth. This task is well known to create body disorientation as over the course of the task, the body position in space changes, unbeknownst to the participant. Results suggest that musicians are less susceptible to body disorientation, as measured in the stepping task, both in the absence and in the presence of auditory stimuli. The findings extend beyond recent research indicating that musical training can influence a wide range of auditory abilities, suggesting that it could also modulate a broader cognitive process, specifically spatial cognition. The demonstration that extensive multisensory training significantly enhances spatial cognition has relevance for rehabilitation in clinical settings.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"193 ","pages":"Pages 49-56"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145413724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
CortexPub Date : 2025-12-01Epub Date: 2025-09-22DOI: 10.1016/j.cortex.2025.09.006
Jason J.S. Barton , Moritz Feil
{"title":"Foundations of prosopagnosia: The three classic Austro-German reports","authors":"Jason J.S. Barton , Moritz Feil","doi":"10.1016/j.cortex.2025.09.006","DOIUrl":"10.1016/j.cortex.2025.09.006","url":null,"abstract":"<div><div>The term prosopagnosia was coined 78 years ago, in 1947. At that time few reports of a specific disorder of face recognition existed, the three most detailed being those of Wilbrand (1892), Hoff and Pötzl (1937), and Bodamer (1947). These laid the basis for much of our current thought about the manifestations of prosopagnosia, its associations, its structural basis, and theories about its functional mechanisms. However, since they were written in German and few current researchers are fluent in that language, these early works are relatively neglected today. In this review we discuss their highly detailed case descriptions, the prescient inductions they made from their clinical material, as well as their less successful speculations, with full translations provided as appendices. Familiarity with these older studies provides a perspective on the ongoing work in prosopagnosia.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"193 ","pages":"Pages 1-15"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145289807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}