{"title":"Saccades to spatially extended objects: The roles of observer goals and part-structure cues in determining within-object landing position.","authors":"Andrew Hollingworth, Cathleen M Moore","doi":"10.1167/jov.26.4.1","DOIUrl":"10.1167/jov.26.4.1","url":null,"abstract":"<p><p>How is the perceptual representation of a spatially extended object translated into a discrete saccade vector? A wealth of evidence suggests that the object center of area (COA) is computed as a default index. However, saccades are also sensitive to the location of task-relevant information, which does not always appear at the COA. In addition, task-relevant object regions often correspond to discrete object parts. Here, we manipulated part-structure cues and participant goals to examine their potential interaction in controlling within-object landing position. In Experiment 1, participants executed saccades to spatially extended objects in a visual search task. Within-object landing position was systematically influenced by both factors: (1) a bias toward locations known to contain task-relevant information, and (2) a bias toward regions of part segmentation. A rapid orienting task to a single, abruptly appearing object (Experiment 2) showed only the latter bias, suggesting that unlike the strategic bias, the segmentation bias was driven primarily by physical stimulus properties. Finally, the two biases combined, such that the largest effect of strategy was observed when the relevant location coincided with a discrete object part. Together, the results indicate that saccade target selection was controlled by the combined effect of goal-directed processes, segmentation, and a default bias toward the COA.</p>","PeriodicalId":49955,"journal":{"name":"Journal of Vision","volume":"26 4","pages":"1"},"PeriodicalIF":2.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13050015/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147595751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pooja Nandagopal, Allison M McKendrick, Andrew J Anderson
{"title":"Spatial suppression of motion and motion segmentation in peripheral vision.","authors":"Pooja Nandagopal, Allison M McKendrick, Andrew J Anderson","doi":"10.1167/jov.26.4.6","DOIUrl":"10.1167/jov.26.4.6","url":null,"abstract":"<p><p>This study examined motion segmentation and spatial suppression of motion in central versus peripheral vision, their relationship, and whether scaling peripheral stimuli to match larger middle temporal receptive fields reduces eccentricity effects. Ten adults (mean 27.5 years) completed motion segmentation and motion discrimination tasks across five contrast levels (12%-92%), three eccentricities (0°, 10°, 20°), and two stimulus conditions (scaled, unscaled). In the segmentation task, participants identified the tilt of a motion-defined ellipse within an oppositely moving background; segmentation thresholds were minimum stimulus exposure duration required for accurate tilt discrimination. Participants also judged motion direction of the ellipse in isolation. Segmentation efficiency was the log10 threshold difference between ellipse motion and segmentation thresholds. The motion discrimination task involved identifying the motion direction of the moving background patch in isolation, with a suppression index calculated as the log10 threshold difference between highest and lowest contrasts. In the unscaled condition, eccentricity reduced segmentation efficiency (p < 0.01) and suppression index (p = 0.003), with a significant interaction among suppression, segmentation, and eccentricity (p < 0.001). Correlations between segmentation efficiency and suppression index weakened with eccentricity (Pearson's r = 0.81, p = 0.003 at 0°, r = 0.69, p = 0.26 at 10°, r = 0.48, p = 0.16). Scaling improved segmentation efficiency (p = 0.003) and suppression index (p = 0.043) but did not remove eccentricity effects. Thus our ability to segment moving foreground objects declines with eccentricity, even when accounting for receptive field scaling.</p>","PeriodicalId":49955,"journal":{"name":"Journal of Vision","volume":"26 4","pages":"6"},"PeriodicalIF":2.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13069350/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147634893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Colin S Flowers, Arda Fidanci, Gordon E Legge, Stephen A Engel
{"title":"Spatial remapping improves reading with simulated central field loss.","authors":"Colin S Flowers, Arda Fidanci, Gordon E Legge, Stephen A Engel","doi":"10.1167/jov.26.4.11","DOIUrl":"10.1167/jov.26.4.11","url":null,"abstract":"<p><p>One way to potentially aid reading with central field loss (CFL) is to spatially remap text outside the scotoma to appear in functioning visual field locations. We tested spatial remapping using a sentence reading task with typically sighted readers and simulated scotomata. Participants read sentences with six different remapping strategies of shifting text around the scotoma and with simulated scotomata of three shapes to assess (a) whether spatial remapping improved reading speed generally and (b) whether customization of spatial remapping based on the shape of the simulated scotoma provided additional improvement. Faster reading was observed in at least one remapping condition compared to a no-remapping condition with a simulated scotoma in all participants, with an average improvement of 23.80%. Customization was also important; the remapping strategies that resulted in the fastest reading depended on the shape of the scotoma. The results showed a strong effect of remapping on reading speed. Thus, customizable spatial remapping can aid reading in the presence of a simulated scotoma and should be considered for evaluation in patients with CFL, where it can be used to shift text to areas with functioning visual capabilities.</p>","PeriodicalId":49955,"journal":{"name":"Journal of Vision","volume":"26 4","pages":"11"},"PeriodicalIF":2.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13101835/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147718816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jesse R Macyczko, Osman B Kavcar, Michael A Crognale, Michael A Webster
{"title":"Asymmetries in hue percepts and early cortical color coding: Evidence from chromatic visual evoked potentials.","authors":"Jesse R Macyczko, Osman B Kavcar, Michael A Crognale, Michael A Webster","doi":"10.1167/jov.26.4.3","DOIUrl":"10.1167/jov.26.4.3","url":null,"abstract":"<p><p>Hue percepts vary more rapidly along some directions in color space (e.g., near yellow) than others (e.g., near green), with corresponding differences in the size or stimulus range of different hue categories. The basis for these differences is not known. We examined whether the asymmetries are present in early cortical color coding by comparing the strength of hue differences using visual evoked potentials (VEPs) recorded from the occipital cortex. Stimuli were spatial gratings with a fixed nominal contrast in the cone-opponent plane that varied sinusoidally in hue rather than saturation. The responses to different levels of hue separation were measured by the amplitude of the frequency-tagged signals and also in behavioral measurements employing a contrast matching task. For both, the same separation in hue angle resulted in stronger responses for angular differences centered on the yellow quadrant of the cone-opponent space. Responses were also larger for the yellow than blue quadrant, ruling out a general sensitivity loss to the blue-yellow axis as the basis for the differences. The response differences paralleled the asymmetries in the rates of change in color appearance based on analyses of previous measures of hue scaling functions. The presence of these asymmetries in the VEP responses suggests that they arise relatively early in the cortical sensory representation of color rather than emerging late as a product of inference or color category learning.</p>","PeriodicalId":49955,"journal":{"name":"Journal of Vision","volume":"26 4","pages":"3"},"PeriodicalIF":2.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13052449/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147595701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Temporal processes of information transmission from visual search to behavior.","authors":"Joseph S Lappin, Herbert H Bell","doi":"10.1167/jov.26.3.8","DOIUrl":"10.1167/jov.26.3.8","url":null,"abstract":"<p><p>This article examines the temporal processes of information transmission by response times (RTs) in visual search. Information (hazard) rate functions of RTs were evaluated for a large dataset provided by Wolfe and colleagues. Set size accounted for a minor portion of the variance of these RTs, and the present analysis examined temporal processes involved in the larger variance within each stimulus and task condition. Momentary information rates were measured by (a) response probabilities sequentially dependent on the proportion of longer RTs, (b) with continuously varying visual influence, and (c) evaluated in bits/s. Results include the following: (1) Rates of information transmission from visual input to behavioral output varied systematically with the RTs in each search condition. (2) Information rate functions for \"feature\" and \"conjunction\" tasks were highly nonlinear, with distinct phases of accelerating and decelerating visual influence. Roughly constant information rates occurred in only a few conditions in the \"spatial configuration\" task. (3) Faster and slower observers responded to qualitatively different visual organizations of target-absent displays in all three tasks. (4) Perceptual organization and response control were synchronized parallel processes.</p>","PeriodicalId":49955,"journal":{"name":"Journal of Vision","volume":"26 3","pages":"8"},"PeriodicalIF":2.3,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13007438/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147500186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Characterizing surround suppression with dynamic natural scenes.","authors":"Merve Kiniklioglu, Daniel Kaiser","doi":"10.1167/jov.26.3.9","DOIUrl":"10.1167/jov.26.3.9","url":null,"abstract":"<p><p>Surround suppression refers to the reduction in perceptual sensitivity to a central stimulus caused by its surrounding context. Previous studies have examined this phenomenon mainly with simple stimuli varying only in low-level visual features, leaving it unclear whether the same principles apply to natural scenes. To address this, we investigated surround suppression in complex and dynamic scenes by systematically manipulating categorical similarity and motion congruence between the center and surrounding scenes. Categorical similarity was examined across four levels: identical exemplars, different exemplars of the same basic-level category, different basic-level categories, and different superordinate categories. Motion direction was manipulated by center and surround drifting either in the same or opposite directions. In two experiments, we measured contrast sensitivity for the center scene during a categorization task. We found that the suppression increased as the categorical similarity between the center and the surround decreased, with the strongest suppression observed for different superordinate categories. This finding contrasts with results for simple stimuli, where increasing center-surround similarity increases suppression. Yet, consistent with the findings from simple stimuli, suppression was stronger when the center and surround moved in the same direction. These findings show that contextual modulation in natural vision is governed not only by low-level feature similarity but also by high-level categorical structure. Context-dependent suppression may therefore help the visual system to prioritize coherent, task-relevant information while filtering incongruent input.</p>","PeriodicalId":49955,"journal":{"name":"Journal of Vision","volume":"26 3","pages":"9"},"PeriodicalIF":2.3,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13007443/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147505773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The effect of sequence stability on serial dependence.","authors":"Elín Kara Celin, Sabrina Hansmann-Roth","doi":"10.1167/jov.26.3.6","DOIUrl":"10.1167/jov.26.3.6","url":null,"abstract":"<p><p>Perception and decision-making are strongly influenced by previously presented information. Research on serial dependence has revealed significant attractive biases toward previous stimuli, suggesting that integrating information from both past and present stimuli is beneficial when representing information about the environment. Strong serial dependence is mainly found when consecutive stimuli are similar providing evidence that serial dependence supports continuity. Small changes in the stimulus are not perceived as meaningful stimulus changes and should, hence, be integrated. In the current study we examined the role of continuity further and presented sequences of Gabors that were similar in their orientation, but their spatial frequency was either constant or random. This created stable and unstable environments. We consistently found serial dependence. Interestingly, serial dependence was stronger when the spatial frequency was random compared to constant. In stable contexts, predictive coding mechanisms might sharpen neural representations of the expected input, improve discrimination, and reduce the need to integrate past information. Additionally, a form of optimal integration was observed when the uncertainty of the final Gabor was low. Using similar orientations across longer sequences seemed to induce a form of optimal integration of past and present information, potentially creating the continuous perception of a single object when the current trial's uncertainty was low.</p>","PeriodicalId":49955,"journal":{"name":"Journal of Vision","volume":"26 3","pages":"6"},"PeriodicalIF":2.3,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13001826/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147469846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction of saccadic decisions during active visual search in the monkey.","authors":"Anna E Ipata, James W Bisley, B Suresh Krishna","doi":"10.1167/jov.26.3.10","DOIUrl":"10.1167/jov.26.3.10","url":null,"abstract":"<p><p>Prior research has shown that during tasks with very salient saccadic targets, like popout visual-search and double-step saccade tasks in both humans and monkeys, two-saccade sequences occur, where an initial saccade to a distractor is followed soon after by an ultra-short-latency (USL) second saccade to the popout target. This indicates that the USL second saccade uses visual information obtained before the first saccade and corrects the erroneous decision to make the first saccade to the distractor. Here, we demonstrate that such USL second saccades also often occur when monkeys perform active visual search without a popout visual target. Unlike in prior studies where the search target was extremely salient and therefore all second saccades showed a high accuracy toward the target, in our task, we show that USL saccades are preferentially directed towards the search-target and the transfer of target selection and location information across the first saccade is very accurate. USL saccades foveate the target more often than regular-latency saccades especially when the saccade starts far away from the target. We demonstrate various properties of USL saccades that reveal how the error-correction process is very accurate and how concurrent processing of saccade goals may proceed on the basis of computations in visual/oculomotor priority maps. Our results expand our understanding of saccadic targeting and information transfer across saccades during goal-directed active vision, lay the ground for future neurophysiological studies, and suggest that error-processing in different sensory and response modalities show similar patterns and may be accounted for by similar models.</p>","PeriodicalId":49955,"journal":{"name":"Journal of Vision","volume":"26 3","pages":"10"},"PeriodicalIF":2.3,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13020116/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147488138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jolande Fooken, Renato Moraes, Allison M Scott, J Randall Flanagan
{"title":"Microsaccadic modulation in goal-directed reaching.","authors":"Jolande Fooken, Renato Moraes, Allison M Scott, J Randall Flanagan","doi":"10.1167/jov.26.3.4","DOIUrl":"10.1167/jov.26.3.4","url":null,"abstract":"<p><p>Previous work has demonstrated that microsaccades play a key role in both preparation for upcoming sensory stimuli and visual attention. Microsaccadic modulation prior to a predictable event is observed with visual, tactile, and auditory stimuli, suggesting a common function across sensory modalities. This study investigated how microsaccade modulation relates to sensorimotor control in goal-directed reaching. We designed a task in which participants positioned their hand (represented as a cursor) at a start position and then fixated a target, which changed color after a variable delay. Depending on the condition, in response to this color change (go cue), participants waited for the trial end (cue monitoring), watched a cursor move with biological motion from the hand start position to the target (cursor tracking), or reached to the target either with (reach visible) or without (reach invisible) vision of the hand. We found that the rate of microsaccades was consistently reduced in anticipation of the visual cue. Microsaccade reduction immediately before the go cue was greatest in conditions that required active hand movement, suggesting that movement preparation added attentional load to the sensorimotor system. Following the go cue, microsaccades remained reduced in all conditions, indicating that not only external events but also self-generated movements are associated with event prediction. Yet, the reduction in microsaccade rate was not greater in the movement conditions, suggesting that sensorimotor control processes that are involved in predicting the sensory consequences of motor commands neither enhance nor reduce microsaccade rate.</p>","PeriodicalId":49955,"journal":{"name":"Journal of Vision","volume":"26 3","pages":"4"},"PeriodicalIF":2.3,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13001820/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147445770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Retinal and extra-retinal contributions of blinking to perceptual alternation in bistable apparent motion.","authors":"Ryoya Sato, Eiji Kimura","doi":"10.1167/jov.26.3.3","DOIUrl":"10.1167/jov.26.3.3","url":null,"abstract":"<p><p>Blinks serve not only to maintain ocular lubrication, but may also contribute to visual processing, although their functional role remains poorly understood. Recent research has shown that spontaneous and voluntary blinks serve distinct functions in perceptual competition involving binocular interactions (Sato & Kimura, 2024). To disentangle the retinal and extra-retinal contributions of blinking, this study investigated how different types of blinks affect perceptual alternation using a bistable apparent motion stimulus where the perceived motion direction alternates between vertical and horizontal. Results showed that instructed (i.e., voluntary) blinks facilitated perceptual alternation, whereas spontaneous blinks did not. The time to perceptual alternation was longer on spontaneous-blink trials, but these blinks showed no clear temporal association with the alternation. Physical blackouts simulating blinks also did not affect perceptual alternation. However, these same blackouts did modulate it when susceptibility to perceptual alternation was high, suggesting that retinal transients have a limited but condition-dependent effect. Moreover, the lack of modulation from instructed key presses suggests that extra-retinal self-motion signals per se cannot account for the effect. Notably, instructed eye widenings, which do not involve eyelid closure, also facilitated perceptual alternation. Taken together, these results suggest that the facilitatory effects of voluntary blinking primarily reflect extra-retinal signals associated with voluntary eyelid movements.</p>","PeriodicalId":49955,"journal":{"name":"Journal of Vision","volume":"26 3","pages":"3"},"PeriodicalIF":2.3,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13001825/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147445835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}