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Distortion of perceived visual space after prolonged horizontal eccentric gaze holding 长时间水平偏心凝视后感知到的视觉空间扭曲。
IF 1.4 4区 心理学
Vision Research Pub Date : 2026-03-01 Epub Date: 2025-12-10 DOI: 10.1016/j.visres.2025.108729
Terence L. Tyson , Dennis F. Perez , Jorge Otero-Millan
{"title":"Distortion of perceived visual space after prolonged horizontal eccentric gaze holding","authors":"Terence L. Tyson ,&nbsp;Dennis F. Perez ,&nbsp;Jorge Otero-Millan","doi":"10.1016/j.visres.2025.108729","DOIUrl":"10.1016/j.visres.2025.108729","url":null,"abstract":"<div><div>Eye movements have long been used as a measure of underlying brain function and pathology. Specifically, rebound nystagmus has provided a behavioral window into the adaptive mechanisms of gaze holding. It is an eye movement aftereffect resulting from maintaining gaze eccentrically for a prolonged duration. Upon returning to central fixation, the eyes drift or “rebound” back toward the previously held gaze location, demonstrating an adaptive process. Little is known about how prolonged eccentric gaze holding, and the accompanying adaptation of the oculomotor system, influences the perception of visual space. Here, we used a variant of the landmark task to assess spatial bias (or lack thereof) with and without prior eccentric gaze holding. We found that perceived spatial bias after prolonged eccentric gaze holding was significantly different between gaze holding to the far left (−40 deg) and the far right (+40 deg). We also found that sensitivity in distinguishing relative distances between objects in space was marginally different between the left and right gaze holding conditions. This suggests that perceived visual space is differentially impacted by where gaze was previously held, reflecting a dependence on the history of eye positions.</div></div>","PeriodicalId":23670,"journal":{"name":"Vision Research","volume":"240 ","pages":"Article 108729"},"PeriodicalIF":1.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145744864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Balanced spatiotemporal color responses are fine-tuned to natural light spectrum in mice ventral retina 在小鼠腹侧视网膜中,平衡的时空颜色反应对自然光谱进行了微调。
IF 1.4 4区 心理学
Vision Research Pub Date : 2026-03-01 Epub Date: 2025-12-11 DOI: 10.1016/j.visres.2025.108743
Tom Quétu , Awen Louboutin , Filippo Castellani , Remi Baroux , Ulisse Ferrari , Matías A. Goldin
{"title":"Balanced spatiotemporal color responses are fine-tuned to natural light spectrum in mice ventral retina","authors":"Tom Quétu ,&nbsp;Awen Louboutin ,&nbsp;Filippo Castellani ,&nbsp;Remi Baroux ,&nbsp;Ulisse Ferrari ,&nbsp;Matías A. Goldin","doi":"10.1016/j.visres.2025.108743","DOIUrl":"10.1016/j.visres.2025.108743","url":null,"abstract":"<div><div>Color vision is vital for animal survival, essential for foraging and predator detection. In mice, as in other mammals, color vision originates in the retina, where photoreceptor signals are processed by neural circuits. However, retinal responses to stimuli involving multiple colors are still not well understood. One possible explanation of this knowledge gap is that previous studies have not thoroughly examined how neuronal activity adapts to a 30 s to a few minutes timescale when exposed to multiple color sources. To address this, we systematically varied the UV-to-green light balance with a custom-built stimulator targeting mice opsins spectra while recording retinal ganglion cell responses across the dorso-ventral axis of the retina using multielectrode arrays. Responses to full-field chirp and checkerboard stimulations with alternating UV and green light revealed that more than one order of magnitude of intensity difference favoring green M-opsin over UV S-opsin is needed for a balanced reliability in retinal ganglion cell responses in the ventral retina. An incorrect balance, with slightly increased UV light, silenced responses to green illumination. To determine if these values are consistent with natural conditions, we analyzed isomerisation rates in the mouse retina across different times of the day. We found that the M- to S-opsin activation ratio remains constant through the mesopic-photopic range, and that our empirically determined values in the ventral retina align well with these natural conditions. These lie far from a simple equalization of M- and S-opsin isomerisation rates, which we found only balances ganglion cell responses in the dorsal retina. In conclusion, a finely tuned color intensity balance matching natural light spectrum is essential for accurately measuring both fast temporal responses and detailed spatial receptive fields in the ventral retina.</div></div>","PeriodicalId":23670,"journal":{"name":"Vision Research","volume":"240 ","pages":"Article 108743"},"PeriodicalIF":1.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145744869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Are we ready to tackle perceptual segmentation of natural scenes? 我们准备好处理自然场景的感知分割了吗?
IF 1.4 4区 心理学
Vision Research Pub Date : 2026-03-01 Epub Date: 2025-12-22 DOI: 10.1016/j.visres.2025.108749
Ruben Coen-Cagli , Pascal Mamassian
{"title":"Are we ready to tackle perceptual segmentation of natural scenes?","authors":"Ruben Coen-Cagli ,&nbsp;Pascal Mamassian","doi":"10.1016/j.visres.2025.108749","DOIUrl":"10.1016/j.visres.2025.108749","url":null,"abstract":"<div><div>Processes of perceptual segmentation and integration (PSI) are fundamental to perceptual organization. Although PSI of visual stimuli has been studied for over a century, we have only a rudimentary understanding of PSI of natural visual stimuli. This is due to limitations of traditional experimental methods in visual psychophysics of PSI; to the exclusive focus of computer-vision research for image segmentation on performance benchmarks; and to the scarcity of meaningful interactions between those two communities. The recent literature discussed in this paper presents a compelling argument that the field is starting to overcome those barriers. One important example of such an interaction between visual psychophysics and machine learning is given by the literature on the crowding phenomenon, which calls for revised models of summary statistics to explain some uncrowding results. Other examples reviewed here include studies of the perceptual uncertainty and dynamics of segmentation of natural stimuli, which call for computational models with probabilistic representations and dynamic computations. Conversely, contemporary machine learning algorithms produce impressive segmentation maps that still need to be aligned with human maps as measured with objective tasks such as the same/different segment paradigm reviewed here. Therefore, the time is ripe to move vision science forward by bridging new computational and experimental paradigms for PSI of natural stimuli.</div></div>","PeriodicalId":23670,"journal":{"name":"Vision Research","volume":"240 ","pages":"Article 108749"},"PeriodicalIF":1.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145821171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The best stereoacuity is rarely at the fovea 最佳立体敏锐度很少出现在中央凹。
IF 1.4 4区 心理学
Vision Research Pub Date : 2026-03-01 Epub Date: 2025-12-21 DOI: 10.1016/j.visres.2025.108748
Ângela Gomes Tomaz , Adrien Chopin , Noelia Gabriela Alcalde , Dennis M. Levi , Preeti Verghese
{"title":"The best stereoacuity is rarely at the fovea","authors":"Ângela Gomes Tomaz ,&nbsp;Adrien Chopin ,&nbsp;Noelia Gabriela Alcalde ,&nbsp;Dennis M. Levi ,&nbsp;Preeti Verghese","doi":"10.1016/j.visres.2025.108748","DOIUrl":"10.1016/j.visres.2025.108748","url":null,"abstract":"<div><div>Stereoacuity, the ability to perceive depth from binocular disparity, is traditionally considered to be best at the fovea in typical human vision, and to decline with eccentricity. Previous studies have shown that when stereopsis is present in amblyopia, it is often coarse and comparable to stereoacuity associated with the peripheral retina in neurotypical controls, suggesting that it might be mediated by a non-foveal locus. Here we measured stereoacuity as a function of eccentricity in participants with amblyopia as well as controls with no history of abnormal visual development. We measured stereoacuity using random dot stereograms and targets that scaled with eccentricity, testing the fovea, and eccentricities of 2.5°, 5°, and 10° along the horizontal and vertical meridians. For 87.5% (7/8) of amblyopic participants, the locus of best stereoacuity was non-foveal. Surprisingly, 75% of control participants (15/20) also exhibited their best stereoacuity at non-foveal locations, with only 5 controls showing foveal superiority. Using stimulus parameters modified to improve foveal performance, we repeated measurements on a subset of controls whose best stereoacuity was non-foveal, but the best locus only shifted to the fovea in one participant. Stereoacuity measured at the experimentally determined “best locus” correlated well with standard clinical stereoacuity tests. These findings challenge the conventional view of universal foveal dominance for stereopsis, suggesting that the fovea is not invariably the site of best stereoscopic sensitivity, even in many normally sighted individuals. This has implications for understanding binocular vision in amblyopic and normal vision, and for interpreting clinical stereo tests.</div></div>","PeriodicalId":23670,"journal":{"name":"Vision Research","volume":"240 ","pages":"Article 108748"},"PeriodicalIF":1.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145811284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Validation of clinical tools to measure grating acuity and contrast sensitivity in children with cerebral visual impairment 脑性视力障碍儿童光栅敏锐度和对比敏感度临床测量工具的验证
IF 1.4 4区 心理学
Vision Research Pub Date : 2026-03-01 Epub Date: 2025-12-20 DOI: 10.1016/j.visres.2025.108747
Rebecca Sumalini , Ahalya Subramanian , Miriam L. Conway , Lokesh Lingappa , PremNandhini Satgunam
{"title":"Validation of clinical tools to measure grating acuity and contrast sensitivity in children with cerebral visual impairment","authors":"Rebecca Sumalini ,&nbsp;Ahalya Subramanian ,&nbsp;Miriam L. Conway ,&nbsp;Lokesh Lingappa ,&nbsp;PremNandhini Satgunam","doi":"10.1016/j.visres.2025.108747","DOIUrl":"10.1016/j.visres.2025.108747","url":null,"abstract":"<div><div>There is a lack of validated clinical tools to measure visual functions in children with cerebral visual impairment (CVI). This study addresses this gap. Children aged 6 months-7 years with and without CVI (CVI, n = 111, mean age: 3.0 ± 1.9 years; 70.2 % male and without CVI, n = 50, mean age: 3.4 ± 1.9 years; 38 % male) were recruited. Grating acuity (GA) was evaluated using Teller Acuity Cards-II (TAC-II) and the Peekaboo Vision app (PV app), and contrast sensitivity (CS) using Hiding Heidi low contrast face cards (HH cards) and Ohio Contrast Cards (OCC). Retests were conducted within one month. The mean difference between the PV app and TAC-II was significant (CVI: −0.25 ± 0.40 logMAR, 95 % LoA: −1.03 to 0.53 logMAR; controls: −0.14 ± 0.30 logMAR, 95 % LoA: −0.72 to 0.44 logMAR). The median difference between the HH cards and OCC was also significant (CVI: 0.00 logCS, IQR: 0.25 logCS, 95 % LoA: −0.43 to 0.67 logCS; controls: 0.25 logCS, IQR: 0.00 logCS, 95 % LoA: −0.01 to 0.56 logCS). Intra-examiner repeatability analysis in children with CVI (n = 21) and controls (n = 16) revealed that TAC-II (CR, CVI = 0.47, controls = 0.27) had better repeatability than the PV app (CR, CVI = 0.99, controls = 0.41), while OCC (CR, CVI = 0.45, controls = 0.19) had better repeatability than HH cards (CR, CVI = 0.90, controls = 0.60). TAC-II and OCC demonstrated better repeatability and comparable testability, testing time, and engagement scores for GA and CS tests respectively in children with CVI. Findings indicate that clinical tools should not be used interchangeably, and clinicians must carefully interpret results based on each test’s repeatability indices.</div></div>","PeriodicalId":23670,"journal":{"name":"Vision Research","volume":"240 ","pages":"Article 108747"},"PeriodicalIF":1.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145798337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hemispheric dominance for scene perception differs across different components of the navigation network 在导航网络的不同组成部分中,场景感知的半球优势是不同的
IF 1.4 4区 心理学
Vision Research Pub Date : 2026-03-01 Epub Date: 2025-12-10 DOI: 10.1016/j.visres.2025.108731
David P. Carey , Emma M. Karlsson , Leah T. Johnstone
{"title":"Hemispheric dominance for scene perception differs across different components of the navigation network","authors":"David P. Carey ,&nbsp;Emma M. Karlsson ,&nbsp;Leah T. Johnstone","doi":"10.1016/j.visres.2025.108731","DOIUrl":"10.1016/j.visres.2025.108731","url":null,"abstract":"<div><div>Patients who develop difficulties in orienting in familiar environments have been well-described in neurology and neuropsychology. This topographical disorientation, when it occurs, follows damage to occipitotemporal regions of the brain. The lesions are often bilateral, but when they are one-sided, disorientation is much more likely to follow from damage to the right hemisphere. However, the evidence from the neuroimaging literature on scene perception and spatial navigation rarely refers to cerebral dominance favoring the right hemisphere. This contradiction is in part explained by how threshold-dependent methods in neuroimaging are often not well suited for visualizing let alone quantifying brain asymmetry. In the present investigation, brain asymmetries for scene perception are quantified in a large sample, enriched with non-right-handed participants who are more heterogeneous for brain asymmetries. Results show a weak but consistent right hemispheric bias. A planned region of interest analysis provided only weak support for models of differential lateralization of perceptual and semantic nodes within the scene network. Surprisingly, right dominance was most prominent in retrosplenial cortex, contrary to models that suggest it functions in semantic/mnemonic rather than perceptual domains. Results are discussed in terms of the utility of such an approach for elucidating the functional nature of different scene network subregions, and how publicly-available datasets will prove exceptionally useful for doing so.</div></div>","PeriodicalId":23670,"journal":{"name":"Vision Research","volume":"240 ","pages":"Article 108731"},"PeriodicalIF":1.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145705703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of motion perception and binocular vision following dichoptic treatment for amblyopia 弱视复视治疗后运动知觉和双眼视力的评价
IF 1.4 4区 心理学
Vision Research Pub Date : 2026-03-01 Epub Date: 2025-12-09 DOI: 10.1016/j.visres.2025.108745
Akosua Kesewah Asare , Cindy S. Ho , Hee Yeon Im , Deborah Eileen Giaschi
{"title":"Evaluation of motion perception and binocular vision following dichoptic treatment for amblyopia","authors":"Akosua Kesewah Asare ,&nbsp;Cindy S. Ho ,&nbsp;Hee Yeon Im ,&nbsp;Deborah Eileen Giaschi","doi":"10.1016/j.visres.2025.108745","DOIUrl":"10.1016/j.visres.2025.108745","url":null,"abstract":"<div><div>Although poor monocular visual acuity is the main characteristic of amblyopia, binocular vision is also often disrupted in amblyopia. Motion perception deficits have also been reported to be impaired in both amblyopic and fellow eyes. Occlusion therapy, the gold-standard treatment for amblyopia, is usually unsuccessful at fully restoring binocular visual function or motion perception. We evaluated the effectiveness of a video game-based dichoptic treatment (Vivid Vision) for restoring these aspects of vision in amblyopia. Twenty-one participants (age 6 to 56 years) with strabismic, anisometropic or aniso-strabismic amblyopia were assessed before and after 8 weeks of binocular treatment. Treatment was not part of the research protocol and comprised at least 4 h of training through a local optometry practice in the clinic or at home. Monocular visual function measures included visual acuity, and coherence thresholds for discriminating motion-defined form orientation or global motion direction. Binocular measures included stereoacuity and interocular suppression measured as a contrast balance index on a dichoptic eye chart. Group analyses revealed abnormal performance before the treatment, relative to a large control dataset (N = 217), on every measure except fellow-eye visual acuity. After the treatment, there was a significant mean improvement in amblyopic-eye visual acuity, amblyopic-eye motion-defined form perception and fellow-eye global motion perception, with some participants improving to normal performance levels. Interocular suppression was reduced in 43 % of participants and stereoacuity improved in 14 % of participants following treatment. Visual acuity improvement was greater with clinic than home-based treatment, while global motion improvement was greater in the strabismic amblyopic group. There was no effect of participant age. The Vivid Vision dichoptic treatment improved monocular and binocular measures in some but not all participants.</div></div>","PeriodicalId":23670,"journal":{"name":"Vision Research","volume":"240 ","pages":"Article 108745"},"PeriodicalIF":1.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145705769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Beyond night vision: the expanding role of rod photoreceptors in bright light 夜视之外:杆状光感受器在强光下的扩展作用。
IF 1.4 4区 心理学
Vision Research Pub Date : 2026-03-01 Epub Date: 2025-12-17 DOI: 10.1016/j.visres.2025.108744
Katja Reinhard , Kate Powell , Matteo Rizzi
{"title":"Beyond night vision: the expanding role of rod photoreceptors in bright light","authors":"Katja Reinhard ,&nbsp;Kate Powell ,&nbsp;Matteo Rizzi","doi":"10.1016/j.visres.2025.108744","DOIUrl":"10.1016/j.visres.2025.108744","url":null,"abstract":"<div><div>According to the standard view, most species including humans possess a “duplex retina”, with a rod system dedicated to low light (night) vision and a cone system dedicated to daylight vision. This separation of photon detection into a rod and cone regime is attributed to the low sensitivity of cones in dim light and saturation of rods in brighter light. However, mounting evidence gained from <em>in vitro</em> and <em>in vivo</em> studies in several species have demonstrated that specific mechanisms enable rod photoreceptors to significantly contribute to vision in bright and even very bright light. In this review we aim to elaborate on this revised framework for the duplex retina, and we propose rods should be considered to be tuned to “low contrast” rather than to “low ambient luminance”. Importantly, saturation of rod photoreceptors at higher light levels has been an assumption in research studies as well as clinical tests, and consideration of an updated role of rod photoreceptors may warrant reinterpretation of past and future results.</div></div>","PeriodicalId":23670,"journal":{"name":"Vision Research","volume":"240 ","pages":"Article 108744"},"PeriodicalIF":1.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145782901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Peripheral filling in causes illusory afterimages 外周填充引起虚幻的后像
IF 1.4 4区 心理学
Vision Research Pub Date : 2026-02-01 Epub Date: 2025-11-19 DOI: 10.1016/j.visres.2025.108721
Marte Otten, Nina Fitzmaurice, Yair Pinto
{"title":"Peripheral filling in causes illusory afterimages","authors":"Marte Otten,&nbsp;Nina Fitzmaurice,&nbsp;Yair Pinto","doi":"10.1016/j.visres.2025.108721","DOIUrl":"10.1016/j.visres.2025.108721","url":null,"abstract":"<div><div>In a uniformity illusion, participants experience that peripheral stimuli appear identical to the central stimulus even though they are different. The uniformity illusion generally occurs after prolonged central fixation. The uniformity illusion thus seems to evoke illusory peripheral perceptions of colour, shape, size, and even movement. This could be the result of a passive process where the periphery is unattended and ignored, resulting in erroneous reporting of peripheral stimulus properties. The current experiment, however, points to an active filling-in process that resulted in an actual percept of the periphery by showing that the illusory periphery is “sticky”: Even after the central stimuli inducing the illusion were removed, the peripheral illusion persisted, and continued to influence perceptual reports of the participants. Participants viewed displays featuring colour or size variations between the center and periphery for a set time to induce the uniformity illusion, reporting if they experienced a uniform screen. Subsequently, the central patch was altered to match the original periphery, creating a truly uniform display. Participants then evaluated whether the new display appeared uniform and reproduced the size or colour of the peripheral texture. Reaction time and reproduction accuracy revealed that experiencing an illusory periphery interfered with processing subsequent physical stimuli, especially in trials where participants explicitly reported the illusion. These findings suggest that the uniformity illusion can produce a persistent illusory periphery, which disrupts the perception of the actual peripheral stimulus even seconds after the original display has been modified. The results underscore the active, hierarchical nature of perceptual reconstruction in visual processing.</div></div>","PeriodicalId":23670,"journal":{"name":"Vision Research","volume":"239 ","pages":"Article 108721"},"PeriodicalIF":1.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145537507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The impact of dorsolateral prefrontal cortex stimulation on attention networks and saccadic performance in adults with amblyopia 背外侧前额叶皮层刺激对弱视成人注意网络和跳眼表现的影响。
IF 1.4 4区 心理学
Vision Research Pub Date : 2026-02-01 Epub Date: 2025-12-07 DOI: 10.1016/j.visres.2025.108733
Mohammad Maeiyat , Soomaayeh Heysieattalab , Khalil Esmaeilpour
{"title":"The impact of dorsolateral prefrontal cortex stimulation on attention networks and saccadic performance in adults with amblyopia","authors":"Mohammad Maeiyat ,&nbsp;Soomaayeh Heysieattalab ,&nbsp;Khalil Esmaeilpour","doi":"10.1016/j.visres.2025.108733","DOIUrl":"10.1016/j.visres.2025.108733","url":null,"abstract":"<div><div>Amblyopia, characterized by monocular visual deficits and impaired binocularity, attention, and oculomotor control, is often considered untreatable in adulthood due to reduced neuroplasticity. Conventional therapies target children within the critical period. This study investigated transcranial direct current stimulation (tDCS) over the dorsolateral prefrontal cortex (dlPFC) as a novel intervention to modulate attentional networks and saccadic performance in adults with amblyopia. Thirty adults (20--35 years) with unilateral amblyopia were randomized into active tDCS (anode: F3, cathode: F4; 2 mA; n = 15) or sham groups (n = 15). Participants received 10 sessions (20 min/day, 3x/week). Attentional performance (Attention Network Test − ANT) and saccadic metrics (eye-tracking: reaction time (RT), peak velocity, fixation duration) were assessed pre- and post-intervention. Active tDCS significantly improved all ANT components: alerting, orienting, and executive control, with reduced error rates and RT. Saccadic RT decreased, and fixation durations increased. Peak velocity remained unchanged. Anodal tDCS over the left dlPFC significantly enhances attentional efficiency and saccadic performance in adults with amblyopia. These findings highlight tDCS as a promising neuromodulatory tool for addressing cognitive and motor deficits in adult amblyopia, bridging a critical gap in non-invasive therapies beyond the critical period.</div></div>","PeriodicalId":23670,"journal":{"name":"Vision Research","volume":"239 ","pages":"Article 108733"},"PeriodicalIF":1.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145709814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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