Cortex最新文献

{"title":"Putting things into perspective: Which visual cues facilitate automatic extraretinal symmetry representation?","authors":"Elena Karakashevska ,&nbsp;Marco Bertamini ,&nbsp;Alexis D.J. Makin","doi":"10.1016/j.cortex.2024.11.024","DOIUrl":"10.1016/j.cortex.2024.11.024","url":null,"abstract":"<div><div>Objects project different images when viewed from varying locations, but the visual system can correct perspective distortions and identify objects across viewpoints. This study investigated the conditions under which the visual system allocates computational resources to construct view-invariant, extraretinal representations, focusing on planar symmetry. When a symmetrical pattern lies on a plane, its symmetry in the retinal image is degraded by perspective. Visual symmetry activates the extrastriate visual cortex and generates an Event Related Potential (ERP) called Sustained Posterior Negativity (SPN). Previous research has shown that the SPN is reduced for perspective symmetry during secondary tasks. We hypothesized that <strong>perspective cost</strong> would decrease when visual cues support extraretinal representation. To test this, 120 participants viewed symmetrical and asymmetrical stimuli presented in a frontoparallel or perspective view. The task did not explicitly involve symmetry; participants discriminated the luminance of the patterns. Participants completed four experimental blocks: (1) <strong>Baseline block</strong>: no depth cues; (2) <strong>Monocular viewing block</strong>: stimuli viewed with one eye; (3) <strong>Static frame block</strong>: pictorial depth cues from elements within a flat surface with edges; (4) <strong>Moving frame block</strong>: motion parallax enhanced 3D interpretation before stimulus onset. Perspective cost was calculated as the difference between SPN responses to frontoparallel and perspective views. Contrary to our pre-registered hypotheses, the perspective cost was consistent across all four blocks. We conclude that the tested visual cues do not substantially reduce the computational cost of processing perspective symmetry.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"184 ","pages":"Pages 131-149"},"PeriodicalIF":3.2,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143037130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neural sensitivity to others' belief states in infancy predicts later theory of mind reasoning in childhood","authors":"Yiyu Liu ,&nbsp;Eden Moss ,&nbsp;Fransisca Ting ,&nbsp;Daniel C. Hyde","doi":"10.1016/j.cortex.2024.11.023","DOIUrl":"10.1016/j.cortex.2024.11.023","url":null,"abstract":"<div><div>While pre-verbal infants may be sensitive to others' mental states, they are not able to accurately answer questions about them until several years later, an ability referred to as having a theory of mind. Here we ask whether infant social-cognitive sensitivity is subserved by the same brain mechanisms as those that support theory of mind in childhood. To do so, we explored the relationship between functional sensitivity of the right temporal-parietal junction to mental state processing in infancy, a region known to underlie theory of mind in older children, and explicit theory of mind reasoning in the same group several years later. In a small initial sample (<em>N</em> = 33), we find evidence of a longitudinal brain-behavioral link from infancy to childhood, providing preliminary support for a common mechanism for theory of mind across development. However, the brain metric that was predictive of individual differences was not the response to conditions that required tracking the beliefs, but instead, the response to a control condition where belief tracking was not obligatory to predict others' behavior. In hindsight, the ambiguity of this control condition may have best distinguished between infants who had different propensities to engage in belief tracking, suggesting a potential role for active experience in infancy contributing to individual differences in later theory of mind development in childhood. Given the exploratory nature of the study, other alternative explanations for these results must also be considered.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"184 ","pages":"Pages 96-105"},"PeriodicalIF":3.2,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143001617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Delayed primacy recall in AVLT is associated with medial temporal tau PET burden in cognitively unimpaired adults","authors":"Ainara Jauregi-Zinkunegi ,&nbsp;Tobey Betthauser ,&nbsp;Cynthia M. Carlsson ,&nbsp;Barbara B. Bendlin ,&nbsp;Ozioma Okonkwo ,&nbsp;Nathaniel A. Chin ,&nbsp;Sanjay Asthana ,&nbsp;Rebecca E. Langhough ,&nbsp;Sterling C. Johnson ,&nbsp;Kimberly D. Mueller ,&nbsp;Davide Bruno","doi":"10.1016/j.cortex.2024.12.012","DOIUrl":"10.1016/j.cortex.2024.12.012","url":null,"abstract":"<div><h3>Background</h3><div>Alzheimer's disease (AD) can be diagnosed by <em>in vivo</em> abnormalities of amyloid-β plaques (A) and tau accumulation (T) biomarkers. Previous studies have shown that analyses of serial position performance in episodic memory tests, and especially, delayed primacy, are associated with AD pathology even in individuals who are cognitively unimpaired. The earliest signs of cortical tau pathology are observed in medial temporal lobe (MTL) regions, yet it is unknown if serial position markers are also associated with early tau load in these regions. This study of cognitively unimpaired older individuals examined whether serial position scores in word-list recall cross-sectionally predicted tau PET load in the MTL, and were able to discriminate between biomarker profiles, based on AT classification.</div></div><div><h3>Methods</h3><div>Data from 490 participants (mean age = 68.8 ± 7.2) were extracted from two cohorts, which were merged into one sample. Linear regression analyses were carried out with regional volume-controlled tau (18F-MK-6240) PET SUVR of the entorhinal cortex (EC), parahippocampal cortex (PHC) and hippocampus (H) as outcomes, cross-sectional memory scores from the Rey Auditory Verbal Learning Test as predictors (total and delayed recall, along with serial position scores) and control variables, in separate analyses for each outcome and predictor. The sample was then stratified by biomarker profile and ANCOVAs were conducted with the strongest scores from the regression analyses, AT groups as fixed factor and the covariates.</div></div><div><h3>Results</h3><div>Higher delayed primacy significantly predicted lower tau PET in EC, PHC, and H, cross-sectionally. Higher total recall scores predicted lower EC tau, but delayed primacy showed the best model fit, as indicated by AICs. ANCOVAs showed that AVLT metrics did not significantly discriminate between A−T− and A+T+, after correcting for multiple comparisons.</div></div><div><h3>Conclusions</h3><div>Serial position analysis of word-list recall, particularly delayed primacy, may be a valuable tool for identifying <em>in vivo</em> tau pathology in cognitively unimpaired individuals.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"184 ","pages":"Pages 47-57"},"PeriodicalIF":3.2,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142969943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Definition: Aphantasia","authors":"Adam Zeman ,&nbsp;Merlin Monzel ,&nbsp;Joel Pearson ,&nbsp;Christian O. Scholz ,&nbsp;Julia Simner","doi":"10.1016/j.cortex.2024.07.019","DOIUrl":"10.1016/j.cortex.2024.07.019","url":null,"abstract":"","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"182 ","pages":"Pages 212-213"},"PeriodicalIF":3.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142125087","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":"The effect of covert visual attention on pupil size during perceptual fading","authors":"Ana Vilotijević,&nbsp;Sebastiaan Mathôt","doi":"10.1016/j.cortex.2024.10.008","DOIUrl":"10.1016/j.cortex.2024.10.008","url":null,"abstract":"<div><div>Pupil size is modulated by various cognitive factors such as attention, working memory, mental imagery, and subjective perception. Previous studies examining cognitive effects on pupil size mainly focused on inducing or enhancing a subjective experience of brightness or darkness (for example by asking participants to attend to/memorize a bright or dark stimulus), and then showing that this affects pupil size. Surprisingly, the inverse has never been done; that is, it is still unknown what happens when a subjective experience of brightness or darkness is eliminated or strongly reduced even though bright or dark stimuli are physically present. Here, we aim to answer this question by using perceptual fading, a phenomenon where a visual stimulus gradually fades from visual awareness despite its continuous presentation. The study contains two blocks: Fading and Non-Fading. In the Fading block, participants were presented with black and white patches with a fuzzy outline that were presented at the same location throughout the block, thus inducing strong perceptual fading. In contrast, in the Non-Fading block, the patches switched sides on each trial, thus preventing perceptual fading. Participants covertly attended to one of the two patches, indicated by a cue, and reported the offset of one of a set of circles that are displayed on top. We hypothesized that pupil size will be modulated by covert visual attention in the Non-Fading block, but that this effect will not (or to a lesser extent) arise in the Fading block. We found that covert visual attention to bright/dark does modulate pupil size even during perceptual fading (Fading block), but to a lesser extent than when the perceptual experience of brightness/darkness is preserved (Non-Fading block). This implies that pupil size is always modulated by covert attention, but that the effect decreases as subjective experience of brightness or darkness decreases. In broader terms, this suggests that cognitive modulations of pupil size reflect a mixture of high-level and lower-level visual processing.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"182 ","pages":"Pages 112-123"},"PeriodicalIF":3.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142615867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Controversies, strategies, and collaboration in cognitive neuropsychology","authors":"Robert H. Logie","doi":"10.1016/j.cortex.2024.11.007","DOIUrl":"10.1016/j.cortex.2024.11.007","url":null,"abstract":"<div><div>The synergy between cognitive theory and neuropsychology is a hallmark of Sergio Della Sala’s research, of his 25 years as editor of Cortex, and of over 40 years of a Della Sala-Logie research collaboration. This short article highlights some of that completed and ongoing collaborative research focused on the cognition of memory in the healthy, ageing, and impaired brain.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"182 ","pages":"Pages 5-11"},"PeriodicalIF":3.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142766947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Outside the box: A celebration of Sergio Della Sala’s contribution to neuropsychology and science dissemination","authors":"Robert D. McIntosh ,&nbsp;Sarah E. MacPherson ,&nbsp;Stefano Cappa","doi":"10.1016/j.cortex.2024.12.003","DOIUrl":"10.1016/j.cortex.2024.12.003","url":null,"abstract":"","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"182 ","pages":"Pages 1-4"},"PeriodicalIF":3.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143001629","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":"The fickleness of forgetting: When, why, and how do patient groups differ (or not)?","authors":"Michael D. Kopelman","doi":"10.1016/j.cortex.2024.08.002","DOIUrl":"10.1016/j.cortex.2024.08.002","url":null,"abstract":"<div><div>This commentary will review recent findings regarding forgetting rates in patient groups, including observations from some older, less cited studies. It will draw attention to studies (and reviews) indicating faster forgetting of recalled or recollected memories, relative to recognition or familiarity-based memory. Secondly, it will focus upon the variability of findings in forgetting rate studies, including variability of performance between individuals within groups, inconsistency by individuals across test sessions and/or when tested many years apart, and discordance between equivalent or near-equivalent studies. Thirdly, it will consider the distinction between studies finding early forgetting or progressive/quantitative memory loss and those suggesting a later, ‘qualitative’ change in forgetting rate. The latter pattern, most commonly seen in epilepsy cases, may be relatively infrequent when appropriate account has been taken of variation in controls' performance, and effect sizes can be low. There is also a need for an adequate neurobiological account of this delayed (or ‘later’) forgetting. Fourthly, the major contributions of Sergio Della Sala, Alan Baddeley, and their colleagues will be reviewed, drawing our attention to important factors in experimental design, such as the presence or absence of repeated practice, recall of gist versus peripheral detail, and parallel forgetting curves from different levels of initial learning. The paper concludes with a summary of the major findings in (i) healthy participants (including studies of normal ageing), (ii) memory-disordered patients arising from focal lesions, (iii) Alzheimer and MCI patients, and (iv) epilepsy patients.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"182 ","pages":"Pages 12-28"},"PeriodicalIF":3.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142260912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatial working memory predicts re-cancellation behaviour in neglect","authors":"Robert D. McIntosh ,&nbsp;Stephanie Rossit ,&nbsp;Nicoletta Beschin","doi":"10.1016/j.cortex.2024.11.006","DOIUrl":"10.1016/j.cortex.2024.11.006","url":null,"abstract":"<div><div>The lateralised bias of spatial neglect can be modulated by concurrent non-lateralised impairments. For instance, people with left neglect may have spatial working memory deficits that prevent them from keeping track of locations visited in visual search tasks such as target cancellation. Not only do they omit targets in some parts of the array but they may revisit and re-cancel targets in other parts, and this re-cancellation behaviour increases dramatically in ‘invisible’ conditions, in which touching a target leaves no visible trace. It has been proposed that spatial memory deficits are the main reason for the rise of re-cancellation errors in invisible cancellation conditions. This idea predicts that spatial memory abilities should correlate with re-cancellation behaviour; but this expected relationship has never been demonstrated. The present study takes an exploratory approach to describing the behaviour of 18 people with left visual neglect, following right hemisphere stroke, on touchscreen tests of spatial working memory and target cancellation. We show that people with neglect who are less able to remember locations in a spatial memory task tend to make more re-cancellation errors in invisible cancellation conditions. We also describe an apparent trade-off, in which some people with neglect make many more re-cancellation errors, whilst others make many more target omissions. We suggest that the influence of spatial memory deficits on invisible cancellation tasks can be more fully captured by considering both types of errors, rather than re-cancellations only.</div></div>","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"182 ","pages":"Pages 135-146"},"PeriodicalIF":3.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142791216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Definition: Mirror writing","authors":"Jean-Paul Fischer ,&nbsp;Robert D. McIntosh","doi":"10.1016/j.cortex.2024.07.017","DOIUrl":"10.1016/j.cortex.2024.07.017","url":null,"abstract":"","PeriodicalId":10758,"journal":{"name":"Cortex","volume":"182 ","pages":"Pages 214-215"},"PeriodicalIF":3.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142105148","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}