Alterations to foveal crowding with microsaccade preparation
Vision Res. 2023 Nov 20;214:108338. doi: 10.1016/j.visres.2023.108338. Online ahead of print.ABSTRACTVisual stimuli presented around the time of a saccade have been shown to be perceived differently by the visual system, including a reduction in the harmful impact of flankers (crowding). However, whether the effects observed are due strictly to crowding remains controversial, and the effects have only been measured with large saccades in peripheral vision. Here we investigate how crowded stimuli placed 20 arc minutes from the center of gaze are affected by an upcoming microsaccade. The stimulus consisted of a rotated T of ...
Source: Vision Research - November 21, 2023 Category: Opthalmology Authors: Krishnamachari S Prahalad Daniel R Coates Source Type: research
Alterations to foveal crowding with microsaccade preparation
Vision Res. 2023 Nov 20;214:108338. doi: 10.1016/j.visres.2023.108338. Online ahead of print.ABSTRACTVisual stimuli presented around the time of a saccade have been shown to be perceived differently by the visual system, including a reduction in the harmful impact of flankers (crowding). However, whether the effects observed are due strictly to crowding remains controversial, and the effects have only been measured with large saccades in peripheral vision. Here we investigate how crowded stimuli placed 20 arc minutes from the center of gaze are affected by an upcoming microsaccade. The stimulus consisted of a rotated T of ...
Source: Vision Research - November 21, 2023 Category: Opthalmology Authors: Krishnamachari S Prahalad Daniel R Coates Source Type: research
Alterations to foveal crowding with microsaccade preparation
Vision Res. 2023 Nov 20;214:108338. doi: 10.1016/j.visres.2023.108338. Online ahead of print.ABSTRACTVisual stimuli presented around the time of a saccade have been shown to be perceived differently by the visual system, including a reduction in the harmful impact of flankers (crowding). However, whether the effects observed are due strictly to crowding remains controversial, and the effects have only been measured with large saccades in peripheral vision. Here we investigate how crowded stimuli placed 20 arc minutes from the center of gaze are affected by an upcoming microsaccade. The stimulus consisted of a rotated T of ...
Source: Vision Research - November 21, 2023 Category: Opthalmology Authors: Krishnamachari S Prahalad Daniel R Coates Source Type: research
Success rates, near-response patterns, and learning trends with free-fusion stereograms
This study showed that only less than 1/3rd of sixty-one pre-presbyopic adults with normal binocular vision could successfully free-fuse random-dot image pairs and identify the stereoscopic shapes embedded in these patterns. Another one-third of participants performed the task with poor success rates, while the remaining could not perform the task. There was a clear dissociation of vergence and accommodative responses in participants who were successful with free-fusion, as recorded using a dynamic infrared eye tracker and photorefractor. Those in the unsuccessful cluster either showed strong vergence and accommodation or ...
Source: Vision Research - November 11, 2023 Category: Opthalmology Authors: Chandrika Ravisankar Christopher W Tyler Clifton M Schor Shrikant R Bharadwaj Source Type: research
Success rates, near-response patterns, and learning trends with free-fusion stereograms
This study showed that only less than 1/3rd of sixty-one pre-presbyopic adults with normal binocular vision could successfully free-fuse random-dot image pairs and identify the stereoscopic shapes embedded in these patterns. Another one-third of participants performed the task with poor success rates, while the remaining could not perform the task. There was a clear dissociation of vergence and accommodative responses in participants who were successful with free-fusion, as recorded using a dynamic infrared eye tracker and photorefractor. Those in the unsuccessful cluster either showed strong vergence and accommodation or ...
Source: Vision Research - November 11, 2023 Category: Opthalmology Authors: Chandrika Ravisankar Christopher W Tyler Clifton M Schor Shrikant R Bharadwaj Source Type: research
Success rates, near-response patterns, and learning trends with free-fusion stereograms
This study showed that only less than 1/3rd of sixty-one pre-presbyopic adults with normal binocular vision could successfully free-fuse random-dot image pairs and identify the stereoscopic shapes embedded in these patterns. Another one-third of participants performed the task with poor success rates, while the remaining could not perform the task. There was a clear dissociation of vergence and accommodative responses in participants who were successful with free-fusion, as recorded using a dynamic infrared eye tracker and photorefractor. Those in the unsuccessful cluster either showed strong vergence and accommodation or ...
Source: Vision Research - November 11, 2023 Category: Opthalmology Authors: Chandrika Ravisankar Christopher W Tyler Clifton M Schor Shrikant R Bharadwaj Source Type: research
Success rates, near-response patterns, and learning trends with free-fusion stereograms
This study showed that only less than 1/3rd of sixty-one pre-presbyopic adults with normal binocular vision could successfully free-fuse random-dot image pairs and identify the stereoscopic shapes embedded in these patterns. Another one-third of participants performed the task with poor success rates, while the remaining could not perform the task. There was a clear dissociation of vergence and accommodative responses in participants who were successful with free-fusion, as recorded using a dynamic infrared eye tracker and photorefractor. Those in the unsuccessful cluster either showed strong vergence and accommodation or ...
Source: Vision Research - November 11, 2023 Category: Opthalmology Authors: Chandrika Ravisankar Christopher W Tyler Clifton M Schor Shrikant R Bharadwaj Source Type: research
Success rates, near-response patterns, and learning trends with free-fusion stereograms
This study showed that only less than 1/3rd of sixty-one pre-presbyopic adults with normal binocular vision could successfully free-fuse random-dot image pairs and identify the stereoscopic shapes embedded in these patterns. Another one-third of participants performed the task with poor success rates, while the remaining could not perform the task. There was a clear dissociation of vergence and accommodative responses in participants who were successful with free-fusion, as recorded using a dynamic infrared eye tracker and photorefractor. Those in the unsuccessful cluster either showed strong vergence and accommodation or ...
Source: Vision Research - November 11, 2023 Category: Opthalmology Authors: Chandrika Ravisankar Christopher W Tyler Clifton M Schor Shrikant R Bharadwaj Source Type: research
Success rates, near-response patterns, and learning trends with free-fusion stereograms
This study showed that only less than 1/3rd of sixty-one pre-presbyopic adults with normal binocular vision could successfully free-fuse random-dot image pairs and identify the stereoscopic shapes embedded in these patterns. Another one-third of participants performed the task with poor success rates, while the remaining could not perform the task. There was a clear dissociation of vergence and accommodative responses in participants who were successful with free-fusion, as recorded using a dynamic infrared eye tracker and photorefractor. Those in the unsuccessful cluster either showed strong vergence and accommodation or ...
Source: Vision Research - November 11, 2023 Category: Opthalmology Authors: Chandrika Ravisankar Christopher W Tyler Clifton M Schor Shrikant R Bharadwaj Source Type: research
Success rates, near-response patterns, and learning trends with free-fusion stereograms
This study showed that only less than 1/3rd of sixty-one pre-presbyopic adults with normal binocular vision could successfully free-fuse random-dot image pairs and identify the stereoscopic shapes embedded in these patterns. Another one-third of participants performed the task with poor success rates, while the remaining could not perform the task. There was a clear dissociation of vergence and accommodative responses in participants who were successful with free-fusion, as recorded using a dynamic infrared eye tracker and photorefractor. Those in the unsuccessful cluster either showed strong vergence and accommodation or ...
Source: Vision Research - November 11, 2023 Category: Opthalmology Authors: Chandrika Ravisankar Christopher W Tyler Clifton M Schor Shrikant R Bharadwaj Source Type: research
Success rates, near-response patterns, and learning trends with free-fusion stereograms
This study showed that only less than 1/3rd of sixty-one pre-presbyopic adults with normal binocular vision could successfully free-fuse random-dot image pairs and identify the stereoscopic shapes embedded in these patterns. Another one-third of participants performed the task with poor success rates, while the remaining could not perform the task. There was a clear dissociation of vergence and accommodative responses in participants who were successful with free-fusion, as recorded using a dynamic infrared eye tracker and photorefractor. Those in the unsuccessful cluster either showed strong vergence and accommodation or ...
Source: Vision Research - November 11, 2023 Category: Opthalmology Authors: Chandrika Ravisankar Christopher W Tyler Clifton M Schor Shrikant R Bharadwaj Source Type: research
Neural processing of bottom-up perception of biological motion under attentional load
Vision Res. 2023 Nov 3:108328. doi: 10.1016/j.visres.2023.108328. Online ahead of print.ABSTRACTConsidering its importance for one's survival and social significance, biological motion (BM) perception is assumed to occur automatically. Previous behavioral results showed that task-irrelevant BM in the periphery interfered with task performance at the fovea. Under selective attention, BM perception is supported by a network of regions including the occipito-temporal (OTC), parietal, and premotor cortices. Retinotopy studies that use BM stimulus showed distinct maps for its processing under and away from selective attention. ...
Source: Vision Research - November 5, 2023 Category: Opthalmology Authors: Hilal Nizamoglu Burcu A Urgen Source Type: research
Neural processing of bottom-up perception of biological motion under attentional load
Vision Res. 2023 Nov 3:108328. doi: 10.1016/j.visres.2023.108328. Online ahead of print.ABSTRACTConsidering its importance for one's survival and social significance, biological motion (BM) perception is assumed to occur automatically. Previous behavioral results showed that task-irrelevant BM in the periphery interfered with task performance at the fovea. Under selective attention, BM perception is supported by a network of regions including the occipito-temporal (OTC), parietal, and premotor cortices. Retinotopy studies that use BM stimulus showed distinct maps for its processing under and away from selective attention. ...
Source: Vision Research - November 5, 2023 Category: Opthalmology Authors: Hilal Nizamoglu Burcu A Urgen Source Type: research
Neural processing of bottom-up perception of biological motion under attentional load
Vision Res. 2023 Nov 3:108328. doi: 10.1016/j.visres.2023.108328. Online ahead of print.ABSTRACTConsidering its importance for one's survival and social significance, biological motion (BM) perception is assumed to occur automatically. Previous behavioral results showed that task-irrelevant BM in the periphery interfered with task performance at the fovea. Under selective attention, BM perception is supported by a network of regions including the occipito-temporal (OTC), parietal, and premotor cortices. Retinotopy studies that use BM stimulus showed distinct maps for its processing under and away from selective attention. ...
Source: Vision Research - November 5, 2023 Category: Opthalmology Authors: Hilal Nizamoglu Burcu A Urgen Source Type: research
Neural processing of bottom-up perception of biological motion under attentional load
Vision Res. 2023 Nov 3:108328. doi: 10.1016/j.visres.2023.108328. Online ahead of print.ABSTRACTConsidering its importance for one's survival and social significance, biological motion (BM) perception is assumed to occur automatically. Previous behavioral results showed that task-irrelevant BM in the periphery interfered with task performance at the fovea. Under selective attention, BM perception is supported by a network of regions including the occipito-temporal (OTC), parietal, and premotor cortices. Retinotopy studies that use BM stimulus showed distinct maps for its processing under and away from selective attention. ...
Source: Vision Research - November 5, 2023 Category: Opthalmology Authors: Hilal Nizamoglu Burcu A Urgen Source Type: research
