Journal of Cognitive Neuroscience最新文献_第4页

Regulating Negative Autobiographical Memories: An fMRI Investigation of Reappraisal and Distraction in Middle-aged and Older Adults. 调节负性自传体记忆：中老年人重评和分心的fMRI研究。

IF 3 3区医学

Journal of Cognitive Neuroscience Pub Date : 2025-08-10 DOI: 10.1162/jocn.a.88

John L Graner, Leonard Faul, Joseph M Diehl, David J Madden, Moria J Smoski, Kevin S LaBar

{"title":"Regulating Negative Autobiographical Memories: An fMRI Investigation of Reappraisal and Distraction in Middle-aged and Older Adults.","authors":"John L Graner, Leonard Faul, Joseph M Diehl, David J Madden, Moria J Smoski, Kevin S LaBar","doi":"10.1162/jocn.a.88","DOIUrl":"https://doi.org/10.1162/jocn.a.88","url":null,"abstract":"Cognitive reappraisal and attentional distraction constitute two core strategies for regulating emotions. Prior studies have largely focused on young adults regulating simple laboratory stimuli, with few direct comparisons of brain regions that differentiate or mutually implement these strategies. Here, we expanded the typical age range of participants, compared reappraisal and distraction within participants, and used ecologically valid autobiographical memories as regulatory targets. Sixty-two healthy adults aged 35-75 years generated cue words for negative and neutral autobiographical memories and were trained to either reappraise, distract, or let their emotions flow naturally in response to cued memories. Strategy-specific contrasts were derived from whole-brain fMRI data using univariate analyses. For reappraisal, relative to flow, we observed activity in bilateral occipital cortex, right cerebellum, and cingulate cortex and primarily left-sided frontal, temporal, and parietal cortices. Distraction, relative to flow, engaged bilateral lateral prefrontal, medial parietal, cingulate, occipital, and retrosplenial regions and left cerebellum. Common areas of activation included midline occipital and posterior cingulate cortices. Direct comparisons yielded strategy differences across multiple cortical areas: distraction engaged paralimbic areas (insula and left parahippocampal gyrus), dorsolateral and ventrolateral pFC, and right inferior frontoparietal cortex, whereas reappraisal engaged dorsomedial pFC, left ventrolateral pFC, anterior temporal cortex, and left posterolateral pFC. In-scanner valence ratings verified the efficacy of the experimental manipulation and revealed a negative impact of age on reappraisal success, which was correlated with greater visual cortical processing. These findings extend knowledge regarding the neural mechanisms of emotion regulation across the adult lifespan for autobiographical events.","PeriodicalId":51081,"journal":{"name":"Journal of Cognitive Neuroscience","volume":" ","pages":"1-20"},"PeriodicalIF":3.0,"publicationDate":"2025-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144856984","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

Hindering Memory Suppression by Perturbing the Right Dorsolateral pFC. 干扰右背外侧pFC妨碍记忆抑制。

IF 3 3区医学

Journal of Cognitive Neuroscience Pub Date : 2025-08-10 DOI: 10.1162/jocn.a.90

Davide F Stramaccia, Frederik Bergmann, Katharina Lingelbach, Ole Numssen, Gesa Hartwigsen, Roland G Benoit

{"title":"Hindering Memory Suppression by Perturbing the Right Dorsolateral pFC.","authors":"Davide F Stramaccia, Frederik Bergmann, Katharina Lingelbach, Ole Numssen, Gesa Hartwigsen, Roland G Benoit","doi":"10.1162/jocn.a.90","DOIUrl":"https://doi.org/10.1162/jocn.a.90","url":null,"abstract":"A reminder of the past can trigger the involuntary retrieval of an unwanted memory. Yet, we can intentionally stop this process and thus prevent the memory from entering awareness. Such suppression not only transiently hinders the retrieval of the memory, it can also induce forgetting. Neuroimaging has implicated the right dorsolateral pFC (dlPFC) in initiating this process. Specifically, this region seems to downregulate activity in brain systems that would otherwise support memory reinstatement. Here, we probed the causal contribution of the right dlPFC to suppression by combining the think/no-think task with repetitive transcranial magnetic stimulation (rTMS). Participants first learned pairs of cue and target words and then repeatedly recalled some of the targets (think condition) and suppressed others (no-think condition). We applied 10-Hz rTMS bursts to the right dlPFC during the suppression of half the no-think items and to the contralateral primary motor area (M1) as an active control site during the other half. As hypothesized, participants experienced less success at keeping the memories out of awareness with concurrent dlPFC than M1 stimulation. Similarly, a memory test yielded evidence for suppression-induced forgetting (SIF) following M1 but not dlPFC stimulation. However, the difference in forgetting between the stimulation conditions was not significant. The study thus provides causal evidence for the role of the dlPFC in preventing retrieval. Future work will need to conclusively establish the relationship between this transient effect and SIF.","PeriodicalId":51081,"journal":{"name":"Journal of Cognitive Neuroscience","volume":" ","pages":"1-13"},"PeriodicalIF":3.0,"publicationDate":"2025-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144856983","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 Interactive Effects of Negative Emotion and Reward Motivation on Visual Perception. 负性情绪与奖励动机对视觉知觉的交互作用。

IF 3 3区医学

Journal of Cognitive Neuroscience Pub Date : 2025-08-10 DOI: 10.1162/jocn.a.89

Sagarika Jaiswal, Lakshman N C Chakravarthula, Srikanth Padmala

{"title":"The Interactive Effects of Negative Emotion and Reward Motivation on Visual Perception.","authors":"Sagarika Jaiswal, Lakshman N C Chakravarthula, Srikanth Padmala","doi":"10.1162/jocn.a.89","DOIUrl":"https://doi.org/10.1162/jocn.a.89","url":null,"abstract":"Although there is a rapidly growing interest in reward-emotion interactions, our current understanding of how negative emotion influences reward motivation and modulates reward-driven enhancements in visual perception remains limited. To address these gaps, we conducted a fMRI study using a novel variant of the monetary incentive delay task where the valence (negative or neutral) of an emotional scene image served as a cue to indicate a reward or no-reward prospect in the subsequent house-building discrimination task. During the initial cue stage, we hypothesized competitive interactions between reward anticipation and negative emotion along the common value/valence dimension. However, we instead found independent neural signatures of reward (vs. no-reward) anticipation in the ventral striatum and negative (vs. neutral) emotion in the ventromedial pFC and amygdala, with a lack of evidence for their interaction. Notably, during the subsequent task stage, we detected an Emotion × Reward interaction in the parahippocampal gyrus (PHG), wherein reward-driven enhancements in task-related processing were attenuated in the case of negative (vs. neutral) cue images. Furthermore, the Emotion × Reward interaction scores in PHG and behavioral RTs were correlated across participants. Finally, a regression analysis revealed that negative valence-related activity in ventromedial pFC moderated the relationship between ventral striatum reward anticipation activity and PHG task-related processing. These findings demonstrate that negative emotion and reward motivation, which were largely segregated during the cue stage, interactively modulated subsequent visual perception, thus potentially influencing behavior.","PeriodicalId":51081,"journal":{"name":"Journal of Cognitive Neuroscience","volume":" ","pages":"1-24"},"PeriodicalIF":3.0,"publicationDate":"2025-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144977679","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

Unveiling the Causal Role of Auditory Theta Rhythms in Musical Pleasure: A Transcranial Alternating Current Stimulation/Electroencephalogram Study. 揭示听觉θ节奏在音乐愉悦中的因果作用：经颅交流电刺激/脑电图研究。

IF 3 3区医学

Journal of Cognitive Neuroscience Pub Date : 2025-08-10 DOI: 10.1162/jocn.a.91

Alberto Ara, Albert León-Alsina, Gemma Fàbrega Camps, Oscar Bedford, Josep Marco-Pallarés, Robert J Zatorre

{"title":"Unveiling the Causal Role of Auditory Theta Rhythms in Musical Pleasure: A Transcranial Alternating Current Stimulation/Electroencephalogram Study.","authors":"Alberto Ara, Albert León-Alsina, Gemma Fàbrega Camps, Oscar Bedford, Josep Marco-Pallarés, Robert J Zatorre","doi":"10.1162/jocn.a.91","DOIUrl":"10.1162/jocn.a.91","url":null,"abstract":"The enjoyment of music involves a complex interplay between brain perceptual areas and the reward network. While previous studies have shown that musical liking is related to an enhancement of synchronization between the right temporal and frontal brain regions via theta frequency band oscillations, the underlying mechanisms of this interaction remain elusive. Specifically, a causal relationship between theta oscillations and musical pleasure has yet to be shown. In the present study, we address this question by using transcranial alternating current stimulation (tACS). Twenty-four participants underwent three different sessions where they received tACS over the right auditory cortex before listening to and rating a set of melodies selected to vary in familiarity and complexity. In the target session, participants received theta stimulation, while in the other two sessions, they received beta and sham stimulation, serving as controls. We recorded brain activity using EEG during task performance to confirm the effects of tACS on oscillatory activity. Results revealed that compared with sham, theta, but not beta, stimulation resulted in higher liking ratings specifically for unfamiliar music with low complexity. In addition, we found increased theta connectivity between the right temporal and frontal electrodes for these stimuli when they were most liked after theta stimulation but not after beta stimulation. These findings support a causal and frequency-specific relationship between music hedonic judgments and theta oscillatory mechanisms that synchronize the right temporal and frontal areas. These mechanisms play a crucial role in different cognitive processes supported by frontotemporal loops, such as auditory working memory and predictive processing, which are fundamental to music reward processing.","PeriodicalId":51081,"journal":{"name":"Journal of Cognitive Neuroscience","volume":" ","pages":"1-12"},"PeriodicalIF":3.0,"publicationDate":"2025-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144876704","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

Typical Perceptual Sensitivity to Changes in Interpersonal Distance in Developmental Prosopagnosia. 发展性面孔失认症对人际距离变化的典型知觉敏感性。

IF 3 3区医学

Journal of Cognitive Neuroscience Pub Date : 2025-08-10 DOI: 10.1162/jocn.a.85

Carl Bunce, Maria Tsantani, Clare Press, Katie L H Gray, Richard Cook

{"title":"Typical Perceptual Sensitivity to Changes in Interpersonal Distance in Developmental Prosopagnosia.","authors":"Carl Bunce, Maria Tsantani, Clare Press, Katie L H Gray, Richard Cook","doi":"10.1162/jocn.a.85","DOIUrl":"10.1162/jocn.a.85","url":null,"abstract":"Social perception research has traditionally sought to elucidate the visual processing engaged by the faces and bodies of individuals. Recently, however, there has been growing interest in how we perceive dyadic interactions between people. Early findings suggest that dyads arranged face-to-face may engage neurocognitive processing similar to that recruited by faces. Given these parallels, we sought to determine whether developmental prosopagnosics (DPs), who exhibit lifelong face recognition difficulties, also exhibit impaired perception of facing dyads. The focus of our investigation was interpersonal distance-a key visual feature of dyadic social interactions. Participants completed three distance change detection tasks. Two of the tasks depicted distance changes during dyadic social interactions (fighting and dancing). A third task depicted distance changes using nonsocial objects (a pair of grandfather clocks). If DP is associated with impoverished perception of dyadic interactions, we reasoned that DPs should exhibit diminished sensitivity to distance changes on the dancers task and the boxers task, but not on the clocks task. Contrary to this prediction, however, DPs and typical controls did not differ significantly in their ability to detect distance changes on any of the tasks. Although the visual processing of faces and facing dyads exhibit certain similarities, these findings suggest that the underlying perceptual mechanisms may dissociate.","PeriodicalId":51081,"journal":{"name":"Journal of Cognitive Neuroscience","volume":" ","pages":"1-16"},"PeriodicalIF":3.0,"publicationDate":"2025-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144876703","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

Experience-driven Predictability Does Not Influence Neural Entrainment to the Beat. 经验驱动的可预测性不影响神经对节拍的卷入。

IF 3 3区医学

Journal of Cognitive Neuroscience Pub Date : 2025-07-30 DOI: 10.1162/jocn.a.95

Joshua D Hoddinott, Molly J Henry, Jessica A Grahn

{"title":"Experience-driven Predictability Does Not Influence Neural Entrainment to the Beat.","authors":"Joshua D Hoddinott, Molly J Henry, Jessica A Grahn","doi":"10.1162/jocn.a.95","DOIUrl":"https://doi.org/10.1162/jocn.a.95","url":null,"abstract":"Humans spontaneously synchronize movements to a perceived underlying pulse, or beat, in music. Beat perception may be indexed by the synchronization of neural oscillations to the beat, marked by increases in EEG amplitude at the beat frequency [Nozaradan, S., Peretz, I., Missal, M., & Mouraux, A. Tagging the neuronal entrainment to beat and meter. Journal of Neuroscience, 31, 10234-10240, 2011]. Indeed, neural synchronization to the beat appears stronger for strong-beat than non-beat rhythms [Tal, I., Large, E. W., Rabinovitch, E., Wei, Y., Schroeder, C. E., Poeppel, D., et al. Neural entrainment to the beat: The \"missing-pulse\" phenomenon. The Journal of Neuroscience, 37, 6331-6341, 2017] and may underlie the generation of an internal representation of beat. However, because we are exposed disproportionately to strong-beat rhythms (e.g., most Western music) in the environment, comparisons of neural responses to strong-beat and non-beat rhythms may be confounded by relative differences in familiarity. Here, we dissociated beat-related and familiarity-related neural responses by comparing EEG amplitudes during the perception of strong-beat and non-beat rhythms that were either novel or made familiar through training. First, we recorded EEG from participants while they listened to a set of strong-beat, weak-beat, and non-beat rhythms. Then, they were trained on half of the rhythms over four behavioral sessions by listening to and tapping along with them, such that half of the rhythms were familiar by the end of training. Finally, EEG responses to the full rhythm set (half now familiar, half still unfamiliar) were recorded posttraining. Results show no effect of training on EEG amplitude at beat or stimulus-related frequencies and little evidence of familiarity-driven changes in EEG amplitude for weak- and non-beat rhythms. This suggests that oscillatory entrainment to the beat is not driven by familiarity and therefore likely reflects beat processing.","PeriodicalId":51081,"journal":{"name":"Journal of Cognitive Neuroscience","volume":" ","pages":"1-16"},"PeriodicalIF":3.0,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144977723","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 Reinstatement of Encoding Context Mediates the Switch between Fear and Extinction Recall. 编码情境的神经恢复介导恐惧与消退记忆之间的转换。

IF 3 3区医学

Journal of Cognitive Neuroscience Pub Date : 2025-07-30 DOI: 10.1162/jocn.a.93

Augustin C Hennings, Sophia A Bibb, Jarrod A Lewis-Peacock, Joseph E Dunsmoor

{"title":"Neural Reinstatement of Encoding Context Mediates the Switch between Fear and Extinction Recall.","authors":"Augustin C Hennings, Sophia A Bibb, Jarrod A Lewis-Peacock, Joseph E Dunsmoor","doi":"10.1162/jocn.a.93","DOIUrl":"https://doi.org/10.1162/jocn.a.93","url":null,"abstract":"Fear conditioning and extinction generate conflicting memory representations for a conditioned stimulus (CS). Retrieval of either memory is largely determined by the context where the CS is encountered. While fear typically generalizes to CSs encountered in new contexts, extinction is specific to the environment in which it was learned. Here, we used an fMRI design (n = 30, 16 women) to tag and track the extent to which individual participants reinstated competing episodic mental contexts associated with threat conditioning and extinction. We examined whether reactivation of past encoding contexts influences threat expectancy behavior and neural responses to a threat-ambiguous CS encountered in a new context. Results showed that the relative balance between conditioning and extinction context reinstatement in higher-order visual cortex influenced threat expectancy and neural activity in canonical threat processing regions. The link between context reinstatement and fear-related processes was specific to an extinguished CS, as opposed to an unextinguished CS that had never been encountered in the extinction context. These effects were observed 24 hr later, but not after 3 weeks. Additionally, threat conditioning produced long-lasting changes in primary sensory cortex that persisted up to 3 weeks following extinction. These findings show that neural representations of threat can endure over long durations, even in the healthy brain. Our results indicate competition between divergent mental contexts determines feelings of danger or safety when the meaning of the CS is ambiguous and suggest a mechanism by which the brain resolves ambiguity by reinstating the more dominant context associated with either fear or extinction.","PeriodicalId":51081,"journal":{"name":"Journal of Cognitive Neuroscience","volume":" ","pages":"1-21"},"PeriodicalIF":3.0,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144977695","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

Context Matters: Human Faces Hinder Face Pareidolia. 背景很重要：人脸会阻碍脸的幻想性视错觉。

IF 3 3区医学

Journal of Cognitive Neuroscience Pub Date : 2025-07-30 DOI: 10.1162/jocn.a.94

Laura Bourgaux, Diane Rekow, Arnaud Leleu, Adélaïde de Heering

{"title":"Context Matters: Human Faces Hinder Face Pareidolia.","authors":"Laura Bourgaux, Diane Rekow, Arnaud Leleu, Adélaïde de Heering","doi":"10.1162/jocn.a.94","DOIUrl":"https://doi.org/10.1162/jocn.a.94","url":null,"abstract":"The human visual system readily processes illusory faces (IFs) as faces, a phenomenon known as face pareidolia. Building on evidence that IF processing elicits face-like neural activity and is sensitive to contextual cues, we investigated, via two experiments, whether and how the presence of human faces as a visual context to IFs influences IF categorization. In Experiment 1, we exploited the frequency-tagging approach in EEG to display IFs within rapid sequences of various object categories, interleaved with either human faces (face context, FC) or houses (nonface context, NC). The IF-selective neural response was significantly weaker and less face-like in FC compared to NC, with different topographical and temporal patterns. In Experiment 2, another group of participants performed an explicit IF detection task and exhibited slower RTs and lower detection accuracy in FC than in NC, consistent with the neural findings from Experiment 1. These results suggest that, rather than facilitating IF categorization, the presence of human faces interferes with IF categorization, likely because they compete for the same face-selective resources. Overall, this research highlights the critical role of context in shaping visual categorization by demonstrating earnestly how the visual environment dynamically influences the neural and perceptual processing of ambiguous stimuli.","PeriodicalId":51081,"journal":{"name":"Journal of Cognitive Neuroscience","volume":" ","pages":"1-13"},"PeriodicalIF":3.0,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144977735","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 Role of Rapid Eye Movement Sleep in Neural Differentiation of Memories in the Hippocampus. 快速眼动睡眠在海马记忆神经分化中的作用。

IF 3 3区医学

Journal of Cognitive Neuroscience Pub Date : 2025-07-18 DOI: 10.1162/jocn.a.82

Elizabeth A McDevitt, Ghootae Kim, Nicholas B Turk-Browne, Kenneth A Norman

{"title":"The Role of Rapid Eye Movement Sleep in Neural Differentiation of Memories in the Hippocampus.","authors":"Elizabeth A McDevitt, Ghootae Kim, Nicholas B Turk-Browne, Kenneth A Norman","doi":"10.1162/jocn.a.82","DOIUrl":"10.1162/jocn.a.82","url":null,"abstract":"When faced with a familiar situation, we can use memory to make predictions about what will happen next. If such predictions turn out to be erroneous, the brain can adapt by differentiating the representations of the cue from the mispredicted item itself, reducing the likelihood of future prediction errors. Prior work by Kim, Norman, and Turk-Browne (2017) found that violating a sequential association in a statistical learning paradigm triggered differentiation of the neural representations of the associated items in the hippocampus. Here, we used fMRI to test the preregistered hypothesis that this hippocampal differentiation occurs only when violations are followed by rapid eye movement (REM) sleep. Participants first learned that some items predict others (e.g., A predicts B) and then encountered a violation in which a predicted item (B) failed to appear when expected after its associated item (A); the predicted item later appeared on its own after an unrelated item. Participants were then randomly assigned to one of three conditions: remain awake, take a nap containing non-REM sleep only, or take a nap with both non-REM and REM sleep. While the predicted results were not observed in the preregistered left CA2/3/dentate gyrus (DG) ROI, we did observe evidence for our hypothesis in closely related hippocampal ROIs, uncorrected for multiple comparisons: In right CA2/3/DG, differentiation in the group with REM sleep was greater than in the groups without REM sleep (wake and non-REM nap); this differentiation was item-specific and concentrated in right DG. REM-related differentiation effects were also greater in bilateral DG when the predicted item was more strongly reactivated during the violation. Overall, these results provide initial evidence linking REM sleep to changes in the hippocampal representations of memories in humans.","PeriodicalId":51081,"journal":{"name":"Journal of Cognitive Neuroscience","volume":" ","pages":"1-18"},"PeriodicalIF":3.0,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144755074","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

Suppressive Interactions between Nearby Stimuli in Visual Cortex Reflect Crowding. 视觉皮层附近刺激之间的抑制性相互作用反映了拥挤。

IF 3.1 3区医学

Journal of Cognitive Neuroscience Pub Date : 2025-07-18 DOI: 10.1162/jocn.a.79

Leili Soo, Plamen A Antonov, Ramakrishna Chakravarthi, Søren K Andersen

{"title":"Suppressive Interactions between Nearby Stimuli in Visual Cortex Reflect Crowding.","authors":"Leili Soo, Plamen A Antonov, Ramakrishna Chakravarthi, Søren K Andersen","doi":"10.1162/jocn.a.79","DOIUrl":"https://doi.org/10.1162/jocn.a.79","url":null,"abstract":"Crowding is a phenomenon in which visual object identification is impaired by the close proximity of other stimuli. The neural processes leading to object recognition and its breakdown as seen in crowding are still debated. To assess how crowding affects the processing of stimuli in visual cortex, we recorded steady-state visual evoked potentials (SSVEPs) elicited by flickering target and flanker stimuli while manipulating the spacing of these stimuli (Experiment 1) as well as target similarity (Experiment 2). Participants who performed an orientation discrimination task while proportion correct, along with frequency-tagged SSVEPs elicited by target and flanker stimuli, were recorded. Decreasing target-flanker distance reduced both behavioral performance and target-elicited SSVEP amplitudes. Estimates of the critical spacing, a measure of the spatial extent of crowding, from both behavioral data and SSVEP amplitudes were similar. In addition, manipulating target similarity affected both measures in the same way. These findings establish a clear connection between the suppression of stimulus processing by nearby flankers in visual cortex and crowding, and demonstrate the usefulness of SSVEPs in studying the cortical mechanisms of visual crowding.","PeriodicalId":51081,"journal":{"name":"Journal of Cognitive Neuroscience","volume":" ","pages":"1-14"},"PeriodicalIF":3.1,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144709777","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