Crowding expands and is less sensitive to target-flanker differences during a shift of visual attention
Vision Res. 2023 Jul 27;212:108305. doi: 10.1016/j.visres.2023.108305. Online ahead of print.ABSTRACTTarget-flanker similarity and critical spacing control visual crowding when attention is pre-allocated, but these have not been studied when attention shifts. Flanked target Gabors appeared 8° left and right of central fixation throughout each 1.5 s trial. Subjects reported target Gabor tilt. In Expt. 1, target blinks increased accuracy, and flanker blinks decreased it, but only when attention shifted left or right from a central RSVP cue, hardly before it, indicating an exogenous/endogenous synergy. Whether parallel or or...
Source: Vision Research - July 29, 2023 Category: Opthalmology Authors: Jeff Nador Adam Reeves Source Type: research
Eye movements in visual impairment
Vision Res. 2023 Jul 26;211:108296. doi: 10.1016/j.visres.2023.108296. Online ahead of print.ABSTRACTThis Special Issue describes the impact of visual impairment on visuomotor function. It includes contributions that examine gaze control in conditions associated with abnormal visual development such as amblyopia, dyslexia and neurofibromatosis as well as disorders associated with field loss later in life, such as macular degeneration and stroke. Specifically, the papers address both gaze holding (fixation), and gaze-following behavior (single saccades, sequences of saccades and smooth-pursuit) that characterize active visi...
Source: Vision Research - July 28, 2023 Category: Opthalmology Authors: Preeti Verghese Marcus Nystr öm Tom Foulsham Paul V McGraw Source Type: research
Eye movements in visual impairment
Vision Res. 2023 Jul 26;211:108296. doi: 10.1016/j.visres.2023.108296. Online ahead of print.ABSTRACTThis Special Issue describes the impact of visual impairment on visuomotor function. It includes contributions that examine gaze control in conditions associated with abnormal visual development such as amblyopia, dyslexia and neurofibromatosis as well as disorders associated with field loss later in life, such as macular degeneration and stroke. Specifically, the papers address both gaze holding (fixation), and gaze-following behavior (single saccades, sequences of saccades and smooth-pursuit) that characterize active visi...
Source: Vision Research - July 28, 2023 Category: Opthalmology Authors: Preeti Verghese Marcus Nystr öm Tom Foulsham Paul V McGraw Source Type: research
In memoriam - Obituary: Nigel Warwick Daw - 1933-2022
Vision Res. 2023 Jul 23;211:108295. doi: 10.1016/j.visres.2023.108295. Online ahead of print.NO ABSTRACTPMID:37490789 | DOI:10.1016/j.visres.2023.108295 (Source: Vision Research)
Source: Vision Research - July 25, 2023 Category: Opthalmology Authors: Edward Famiglietti Kevin Fox Michael Stryker Source Type: research
In memoriam - Obituary: Nigel Warwick Daw - 1933-2022
Vision Res. 2023 Jul 23;211:108295. doi: 10.1016/j.visres.2023.108295. Online ahead of print.NO ABSTRACTPMID:37490789 | DOI:10.1016/j.visres.2023.108295 (Source: Vision Research)
Source: Vision Research - July 25, 2023 Category: Opthalmology Authors: Edward Famiglietti Kevin Fox Michael Stryker Source Type: research
In memoriam - Obituary: Nigel Warwick Daw - 1933-2022
Vision Res. 2023 Jul 23;211:108295. doi: 10.1016/j.visres.2023.108295. Online ahead of print.NO ABSTRACTPMID:37490789 | DOI:10.1016/j.visres.2023.108295 (Source: Vision Research)
Source: Vision Research - July 25, 2023 Category: Opthalmology Authors: Edward Famiglietti Kevin Fox Michael Stryker Source Type: research
Fine-scale measurement of the blind spot borders
In this study, we used high-resolution eye-tracking and state-of-the-art retinal stabilization to finely map the blind spot borders. Participants reported the onset of tiny high-contrast probes that were briefly flashed at precise positions around the blind spot. This method has sufficient resolution to enable mapping of blood vessels from psychophysical measurements. Our data show that, even after accounting for eye movements, the transition zones at the edges of the blind spot are considerable. On the horizontal meridian, the regions with detection rates between 80% and 20% span approximately 25% of the overall width of ...
Source: Vision Research - July 16, 2023 Category: Opthalmology Authors: Annegret Meermeier Markus Lappe Yuanhao H Li Katharina Rifai Siegfried Wahl Michele Rucci Source Type: research
Fine-scale measurement of the blind spot borders
In this study, we used high-resolution eye-tracking and state-of-the-art retinal stabilization to finely map the blind spot borders. Participants reported the onset of tiny high-contrast probes that were briefly flashed at precise positions around the blind spot. This method has sufficient resolution to enable mapping of blood vessels from psychophysical measurements. Our data show that, even after accounting for eye movements, the transition zones at the edges of the blind spot are considerable. On the horizontal meridian, the regions with detection rates between 80% and 20% span approximately 25% of the overall width of ...
Source: Vision Research - July 16, 2023 Category: Opthalmology Authors: Annegret Meermeier Markus Lappe Yuanhao H Li Katharina Rifai Siegfried Wahl Michele Rucci Source Type: research
Fine-scale measurement of the blind spot borders
In this study, we used high-resolution eye-tracking and state-of-the-art retinal stabilization to finely map the blind spot borders. Participants reported the onset of tiny high-contrast probes that were briefly flashed at precise positions around the blind spot. This method has sufficient resolution to enable mapping of blood vessels from psychophysical measurements. Our data show that, even after accounting for eye movements, the transition zones at the edges of the blind spot are considerable. On the horizontal meridian, the regions with detection rates between 80% and 20% span approximately 25% of the overall width of ...
Source: Vision Research - July 16, 2023 Category: Opthalmology Authors: Annegret Meermeier Markus Lappe Yuanhao H Li Katharina Rifai Siegfried Wahl Michele Rucci Source Type: research
Fine-scale measurement of the blind spot borders
In this study, we used high-resolution eye-tracking and state-of-the-art retinal stabilization to finely map the blind spot borders. Participants reported the onset of tiny high-contrast probes that were briefly flashed at precise positions around the blind spot. This method has sufficient resolution to enable mapping of blood vessels from psychophysical measurements. Our data show that, even after accounting for eye movements, the transition zones at the edges of the blind spot are considerable. On the horizontal meridian, the regions with detection rates between 80% and 20% span approximately 25% of the overall width of ...
Source: Vision Research - July 16, 2023 Category: Opthalmology Authors: Annegret Meermeier Markus Lappe Yuanhao H Li Katharina Rifai Siegfried Wahl Michele Rucci Source Type: research
Fine-scale measurement of the blind spot borders
In this study, we used high-resolution eye-tracking and state-of-the-art retinal stabilization to finely map the blind spot borders. Participants reported the onset of tiny high-contrast probes that were briefly flashed at precise positions around the blind spot. This method has sufficient resolution to enable mapping of blood vessels from psychophysical measurements. Our data show that, even after accounting for eye movements, the transition zones at the edges of the blind spot are considerable. On the horizontal meridian, the regions with detection rates between 80% and 20% span approximately 25% of the overall width of ...
Source: Vision Research - July 16, 2023 Category: Opthalmology Authors: Annegret Meermeier Markus Lappe Yuanhao H Li Katharina Rifai Siegfried Wahl Michele Rucci Source Type: research
Fine-scale measurement of the blind spot borders
In this study, we used high-resolution eye-tracking and state-of-the-art retinal stabilization to finely map the blind spot borders. Participants reported the onset of tiny high-contrast probes that were briefly flashed at precise positions around the blind spot. This method has sufficient resolution to enable mapping of blood vessels from psychophysical measurements. Our data show that, even after accounting for eye movements, the transition zones at the edges of the blind spot are considerable. On the horizontal meridian, the regions with detection rates between 80% and 20% span approximately 25% of the overall width of ...
Source: Vision Research - July 16, 2023 Category: Opthalmology Authors: Annegret Meermeier Markus Lappe Yuanhao H Li Katharina Rifai Siegfried Wahl Michele Rucci Source Type: research
Fine-scale measurement of the blind spot borders
In this study, we used high-resolution eye-tracking and state-of-the-art retinal stabilization to finely map the blind spot borders. Participants reported the onset of tiny high-contrast probes that were briefly flashed at precise positions around the blind spot. This method has sufficient resolution to enable mapping of blood vessels from psychophysical measurements. Our data show that, even after accounting for eye movements, the transition zones at the edges of the blind spot are considerable. On the horizontal meridian, the regions with detection rates between 80% and 20% span approximately 25% of the overall width of ...
Source: Vision Research - July 16, 2023 Category: Opthalmology Authors: Annegret Meermeier Markus Lappe Yuanhao H Li Katharina Rifai Siegfried Wahl Michele Rucci Source Type: research
What surprises the Mona Lisa? The relative importance of the eyes and eyebrows for detecting surprise in briefly presented face stimuli
Vision Res. 2023 Jul 8;211:108275. doi: 10.1016/j.visres.2023.108275. Online ahead of print.ABSTRACTThe classification image (CI) technique has been used to derive templates for judgements of facial emotion and reveal which facial features inform specific emotional judgements. For example, this method has been used to show that detecting an up- or down-turned mouth is a primary strategy for discriminating happy versus sad expressions. We explored the detection of surprise using CIs, expecting widened eyes, raised eyebrows, and open mouths to be dominant features. We briefly presented a photograph of a female face with a ne...
Source: Vision Research - July 10, 2023 Category: Opthalmology Authors: Emil Skog C Stella Qian Anisha Parmar Andrew J Schofield Source Type: research
What surprises the Mona Lisa? The relative importance of the eyes and eyebrows for detecting surprise in briefly presented face stimuli
Vision Res. 2023 Jul 8;211:108275. doi: 10.1016/j.visres.2023.108275. Online ahead of print.ABSTRACTThe classification image (CI) technique has been used to derive templates for judgements of facial emotion and reveal which facial features inform specific emotional judgements. For example, this method has been used to show that detecting an up- or down-turned mouth is a primary strategy for discriminating happy versus sad expressions. We explored the detection of surprise using CIs, expecting widened eyes, raised eyebrows, and open mouths to be dominant features. We briefly presented a photograph of a female face with a ne...
Source: Vision Research - July 10, 2023 Category: Opthalmology Authors: Emil Skog C Stella Qian Anisha Parmar Andrew J Schofield Source Type: research
