Verghese Lab
Our laboratory studies the mechanisms of healthy vision and action, as well as the basis of attention and visual adaptation in clinical populations.
Tabs
Journal Articles
. (2021). Mapping the binocular scotoma in macular degeneration. Journal Of Vision, 21(3), 1-12. http://doi.org/https://doi.org/10.1167/jov.21.3.9
. (2021). Excitatory Contribution to Binocular Interactions in Human Visual Cortex is Reduced in Strabismic Amblyopia. Journal Of Neuroscience. http://doi.org/10.1523/JNEUROSCI.0268-21.2021
. (2021). Eye Movements in Macular Degeneration. Annual Reviews Of Vision Science, 7. http://doi.org/doi.org/10.1146/annurev-vision-100119-125555
. (2020). Predicting stereopsis in macular degeneration. Journal Of Neuroscience. http://doi.org/10.1523/JNEUROSCI.0491-20.2020
. (2020). Contrast Normalization Accounts for Binocular Interactions in Human Striate and Extra-striate Visual Cortex. Journal Of Neuroscience, 40(13), 2753-2763.
. (2019). The upper disparity limit increases gradually with eccentricity. Journal Of Vision, 19(11).
. (2019). The spatial and temporal properties of attentional selectivity for saccades and reaches. Journal Of Vision, 19(9):12.
. (2019). Motion perception in central field loss. Journal Of Vision, 19, 20–20. http://doi.org/10.1167/19.14.20
. (2017). Texture segmentation influences the spatial profile of presaccadic attention. Journal Of Vision, 17(2).
Presentations/Posters
. (2021). Saccades during smooth pursuit in macular degeneration. Investigative Ophthalmology & Visual Science.
. (2020). Effects of task demands on smooth pursuit gain in macular degeneration. Investigative Ophthalmology & Visual Science. Association for Research in Vision and Ophthalmology Annual Meeting: Canceled due to COVID.
. (2019). Binocular scotoma mapping and eye movement patterns in central field loss. Gordon Research Conference on Eye Movements. Lewiston, USA: Lewiston, USA.
. (2019). Motion Perception in Central Field Loss: Visual Field Contributions. Investigative Ophthalmology & Visual Science. ARVO: Vancouver B.C.
. (2019). Mapping the binocular scotoma in macular degeneration. Bay Area Vision Research Day.
. (2018). Interaction of Eye and Head Movements during Smooth Pursuit in Macular Degeneration. Investigative Ophthalmology & Visual Science.
. (2018). Motion Perception in Central Field Loss.
. (2016). Gaze Changes from Binocular to Monocular Viewing during Smooth Pursuit in Macular Degeneration. Investigative Ophthalmology & Visual Science.
. (2016). Do we foveate targets during smooth pursuit?.
Other Publications
. (2015). The Efficiency of Vision and Action. (). http://doi.org/10.1016/j.visres.2015.06.003
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Visual Processing and Eye Movements Journal Club
Read MoreThis journal club meets to discuss developments in the fields of vision research, eye movements, eye-hand coordination and applications to clinical populations.
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Visual Processing and Eye Movements Journal Club
Read MoreThe Visual Processing and Eye Movements Journal Club meets at noon on Tuesdays to discuss developments in the fields of vis
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Visual Processing and Eye Movements Journal Club
Read MoreThe Visual Processing and Eye Movements Journal Club meets at noon on Tuesdays to discuss developments in the fields of vis
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Visual Processing and Eye Movements Journal Club
Read MoreThe Visual Processing and Eye Movements Journal Club meets at noon on Tuesdays to discuss developments in the fields of vis
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Visual Processing and Eye Movements Journal Club
Read MoreThe Visual Processing and Eye Movements Journal Club meets at noon on Tuesdays to discuss developments in the fields of vis
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Visual Processing and Eye Movements Journal Club
Read MoreThe Visual Processing and Eye Movements Journal Club meets at noon on Tuesdays to discuss developments in the fields of vis
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Visual Processing and Eye Movements Journal Club
Read MoreThe Visual Processing and Eye Movements Journal Club meets at noon on Tuesdays to discuss developments in the fields of vis
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Visual Processing and Eye Movements Journal Club
Read MoreThe Visual Processing and Eye Movements Journal Club meets at noon on Tuesdays to discuss developments in the fields of vis
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Visual Processing and Eye Movements Journal Club
Read MoreThe Visual Processing and Eye Movements Journal Club meets at noon on Tuesdays to discuss developments in the fields of vis
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Visual Processing and Eye Movements Journal Club
Read MoreThe Visual Processing and Eye Movements Journal Club meets at noon on Tuesdays to discuss developments in the fields of vis
Pages
Active
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ActiveAdaptive Visual Strategies for Individuals with Macular Degeneration
Read MoreIn this project we try to gain a better understanding of what visual strategies people use to gather information in the world.
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ActiveCharacteristics of Smooth Pursuit in Individuals with Central Field Loss
Read MoreThis project investigates the properties of smooth pursuit eye movements in individuals with macular degeneration. Commonly believed to be a fovea-linked eye movement, smooth pursuit has not been previously investigated in individuals with central field loss, despite its importance for tracking moving objects, such as vehicles or pedestrians on a busy street.
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ActiveFovea Use During Smooth Pursuit
Read MoreThere is continuing debate as to whether smooth pursuit relies on the foveation of a moving target, especially when the target is compact.
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ActiveModeling Smooth Pursuit Eye-Movement Deficits in Macular Degeneration
Read MoreThe project investigates the deficits in smooth pursuit in individuals with age-related macular degeneration within the framework of a Bayesian model.
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ActiveStereopsis in Macular Degeneration
Read MoreMacular degeneration affects the central retina, often causing asymmetrical damage to the two eyes. How does this asymmetrical loss affect stereopsis — the percept of depth generated by the small separation of image features in the two eyes?
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ActiveTracking a target in depth with central field loss
Read MoreBilateral field loss due to maculopathy creates a scotoma that extends in depth — a volume scotoma. Morevoer the size of the scotoma depends on whether observers turn their eyes to track a target as it comes closer. This project investigates how the volume scotoma affects the ability to track oncoming targets in these individuals, and in controls with a simulated volume scotoma.
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CompletedMotion Perception in Central Field Loss
Read MoreThe project investigates motion perception in individuals with vision loss due to central retinal lesion, but who retain healthy peripheral retina. Healthy peripheral retina is exquisitely sensitive to fast speeds, however, there is limited and conflicting information about motion processing in residual peripheral retina in patients with central field loss, often due to macular degeneration. We use psychophysical and eye tracking approaches to systematically probe speed and direction sensitivity in this population.
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CompletedNovel Method to Teach Scotoma Awareness
Read MoreThis project aims to improve visual function in individuals with age-related macular degeneration (AMD). AMD isassociated with central field loss that cannot be corrected optically.
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CompletedUpper Depth Limit Across Visual Field
Read MoreStereopsis is important for tasks of daily living such as eye-hand coordination. It is best in central vision but is also mediated by the periphery. Previously we have shown that individuals with central-field loss who have residual stereopsis in the periphery perform better at an eye-hand-coordination task. Here we sought to determine what sets the limit of stereopsis, defined as the largest disparity that supports the sustained appearance of depth, in the near periphery in healthy individuals.
Current
- Cécile Vullings - Postdoctoral fellow
- Chuan Hou - Scientist
- Don Fletcher - Scientist (Affiliate / Clinical)
- Jason Rubinstein - Postdoctoral Fellow
- Margaret McGovern - Human Participant Coordinator
- Mustafa Safi - Clinical Research Fellow
- Natela Shanidze - Associate Scientist
- Suzanne McKee - Senior Scientist Emerita
- Zack Lively - Research Assistant
Past
- Anna Ma-Wyatt - Assoc. Prof., University of Adelaide, Australia
- Christian Janssen - Assistant Professor Experimental Psychology, Utrecht University
- Darren Weber - Cognitive Scientist and Senior Software Engineer at Jupiter Intelligence
- Dawn Vreven - Associate Professor, Framingham State University
- Elliot Freeman - Senior Lecturer, City University, London UK
- Eric Seemiller - Research Associate at the Indiana School of Optometry
- Laura Walker - Senior Visual Experience Engineer, Apple, Cupertino CA
- Natela Shanidze - Associate Scientist
- Saeideh Ghahghaei - Research Associate
- Stefano Baldassi - Vision Scientist - Adecco @ Google
- Yee-Joon Kim - Ph.D. - Asst Prof. Institute of Basic Sciences, Daejon, Korea
- Yury Petrov - Research Scientist at Apple
