Saeideh Ghahghaei
Research Associate
Degrees: PhD in Cognitive Psychology, Goldsmiths, University of London, UK
BSc in Electrical Engineering, Sharift University of Technology, Tehran, Iran
BSc in Electrical Engineering, Sharift University of Technology, Tehran, Iran
Tabs
Journal Articles
. (2019). Calibration of the PlusOptix PowerRef 3 with change in viewing distance, adult age and refractive error. Ophthalmic And Physiological Optics, 39(4), 7.
. (2018). The effect of load on spatial attention depends on preview: Evidence from a reading study. Vision Research.
. (2017). Texture segmentation influences the spatial profile of presaccadic attention. Journal Of Vision, 17(2).
. (2016). Accuracy of Eye Position for Saccades and Smooth Pursuit. Journal Of Vision, 16(23). http://doi.org/10.1167/16.15.23
. (2016). Depth Perception and Grasp in Central Field Loss. Investigative Ophthalmology & Visual Science, 57, 1476-87.
. (2013). Effects of load on the time course of attentional engagement, disengagement, and orienting in reading. Quarterly Journal Of Experimental Psychology, 66(3).
Presentations/Posters
. (2015). Feedback about gaze position improves saccade efficiency. Journal of vision.
. (2013). Immediate feedback improves saccadic efficiency. Journal of Vision. Association for Research in Vision and Ophthalmology.
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.
Investigating reading in individuals with cortical visual impairment (CVI)
There are many factors that can impair reading in CVI including, but not limited to, (i) increased crowding (ii) simultagnosia and (iii) abnormal eye movements. In this project, we aim to (i) understand how CVI affects reading (ii) how current rehabilitation techniques or assistive technologies...
Reading in mTBI
People with mTBI often complain about dificulty in reading in spite of normal results in usual eye exams. We investigate this issue by looking at accommodation and reading rate and subjective measurement of reading difficuties for a variaty of reading tasks in normal and mTBI population. ...
Calibration of Eccentric Power Refractor
Eccentric power refractors need to be calibrated for accommodation and gaze position for individual participnats. Calibration however can be time consuming. We look at different conditions in which calibration is necessary or preferable.
The window of spatial attention in reading
In reading, visual information is extracted from a window around the gaze. For the first time, we looked at effects of word's processing load on the dynamics of this window over the course of a fixation when sequential saccades are made.
Parafoveal Crowding
Crowding increases with eccentricity, and is most readily observed in the periphery. During natural, active vision however, central vision plays an important role. Measures of critical distance to estimate crowding are difficult in central vision, as these distances are small. Any overlap of...
SKERI-VF
Walker et al (Renninger, Psomadakis, Dang & Fletcher, 2008) suggested a novel method to estimate the monocular scotoma area from perimetry data in macular degeneration based on (i) an optic-disc based estimation of the location of the fovea and (ii) the increase...
Adaptive Visual Strategies for Information Maximization in Individuals with Macular Degeneration
In this project we try to gain a better understanding of what visual strategies people use to gather information in the world.
Fovea Use During Smooth Pursuit
There is continuing debate as to whether smooth pursuit relies on the foveation of a moving target, especially when the target is compact. Previous studies have shown that gaze is placed on the center-of-mass of a target during saccadic eye movements. This research aims to understand whether eye...
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