{"title":"Higher-Order Visuospatial Processing Abilities in Cerebral Visual Impairment: Behavioral Assessment and Neurophysiological Mechanisms.","authors":"Lotfi B Merabet, Claire E Manley, Zahide Pamir","doi":"10.1146/annurev-vision-121423-013141","DOIUrl":null,"url":null,"abstract":"<p><p>Cerebral visual impairment (CVI) is a brain-based visual disorder associated with early injury and maldevelopment of visual processing pathways and areas. The clinical profile of visual dysfunctions observed in CVI is broad and complex. In this review, we discuss how visuospatial processing deficits represent a core feature of this condition, focusing on evidence from behavioral studies investigating complex motion processing and visual search abilities. Results from functional and structural neuroimaging studies have also provided important insight into putative neurophysiological mechanisms associated with these functional visual impairments. We propose that higher-order visual processing dysfunctions in CVI result from an impaired interplay between bottom-up (stimulus-driven) and top-down (goal-driven) processing mechanisms that leads to characteristic challenges in interpreting and interacting with the surrounding visual environment.</p>","PeriodicalId":48658,"journal":{"name":"Annual Review of Vision Science","volume":" ","pages":""},"PeriodicalIF":5.0000,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annual Review of Vision Science","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1146/annurev-vision-121423-013141","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NEUROSCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Cerebral visual impairment (CVI) is a brain-based visual disorder associated with early injury and maldevelopment of visual processing pathways and areas. The clinical profile of visual dysfunctions observed in CVI is broad and complex. In this review, we discuss how visuospatial processing deficits represent a core feature of this condition, focusing on evidence from behavioral studies investigating complex motion processing and visual search abilities. Results from functional and structural neuroimaging studies have also provided important insight into putative neurophysiological mechanisms associated with these functional visual impairments. We propose that higher-order visual processing dysfunctions in CVI result from an impaired interplay between bottom-up (stimulus-driven) and top-down (goal-driven) processing mechanisms that leads to characteristic challenges in interpreting and interacting with the surrounding visual environment.
期刊介绍：
The Annual Review of Vision Science reviews progress in the visual sciences, a cross-cutting set of disciplines which intersect psychology, neuroscience, computer science, cell biology and genetics, and clinical medicine. The journal covers a broad range of topics and techniques, including optics, retina, central visual processing, visual perception, eye movements, visual development, vision models, computer vision, and the mechanisms of visual disease, dysfunction, and sight restoration. The study of vision is central to progress in many areas of science, and this new journal will explore and expose the connections that link it to biology, behavior, computation, engineering, and medicine.
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