Monocular information for perceiving large egocentric distance: A comparison between monocularly blind patients and normally sighted observers
This study aimed to investigate whether individuals with monocular vision loss could accurately and precisely perceive large egocentric distances in real-world environments, under natural viewing conditions, comparable to those with normal vision. A total of 49 participants took part in the study, divided into three groups based on their viewing conditions. Two experiments were conducted to assess the accuracy and precision of estimating egocentric distances to visual targets and the coordination of actions during blind walking. In Experiment 1, participants were positioned in both a hallway and a large open field, tasked ...
Source: Vision Research - July 9, 2023 Category: Opthalmology Authors: Le Gao Yiru Huang Yuning Zhang Xinyi Zhang Zitian Liu Jing S Pan Minbin Yu Source Type: research
Detection of emotional faces: The role of spatial frequencies and local features
Vision Res. 2023 Jul 6;211:108281. doi: 10.1016/j.visres.2023.108281. Online ahead of print.ABSTRACTModels of emotion processing suggest that threat-related stimuli such as fearful faces can be detected based on the rapid extraction of low spatial frequencies. However, this remains debated as other models argue that the decoding of facial expressions occurs with a more flexible use of spatial frequencies. The purpose of this study was to clarify the role of spatial frequencies and differences in luminance contrast between spatial frequencies, on the detection of facial emotions. We used a saccadic choice task in which emot...
Source: Vision Research - July 8, 2023 Category: Opthalmology Authors: L éa Entzmann Nathalie Guyader Louise Kauffmann Carole Peyrin Martial Mermillod Source Type: research
Numerosity depends on normalized contrast energy: Review and square-root law model
Vision Res. 2023 Jul 4;211:108280. doi: 10.1016/j.visres.2023.108280. Online ahead of print.ABSTRACTThe perceived numerosity of many randomly-located items of fixed contrast depends on the integrated contrast energy (CE) of the display. We show here that a model based on √(CE), normalized by contrast amplitude, can fit numerosity judgment data in various tasks and over a wide range of numerosities. The model shows that judged numerosity increases linearly with √(N), where N is the number of displayed items above the subitization range, and can explain: 1) the general underestimation in absolute judgement of numerosity;...
Source: Vision Research - July 7, 2023 Category: Opthalmology Authors: Quan Lei Adam Reeves Source Type: research
An eye for detail: Eye movements and attention at the foveal scale
Vision Res. 2023 Jun 26;211:108277. doi: 10.1016/j.visres.2023.108277. Online ahead of print.ABSTRACTHuman vision relies on a tiny region of the retina, the 1-deg foveola, to achieve high spatial resolution. Foveal vision is of paramount importance in daily activities, yet its study is challenging, as eye movements incessantly displace stimuli across this region. Here I will review work that, building on recent advances in eye-tracking and gaze-contingent display, examines how attention and eye movements operate at the foveal level. This research highlights how exploration of fine spatial detail unfolds following visuomoto...
Source: Vision Research - June 28, 2023 Category: Opthalmology Authors: Martina Poletti Source Type: research
An eye for detail: Eye movements and attention at the foveal scale
Vision Res. 2023 Jun 26;211:108277. doi: 10.1016/j.visres.2023.108277. Online ahead of print.ABSTRACTHuman vision relies on a tiny region of the retina, the 1-deg foveola, to achieve high spatial resolution. Foveal vision is of paramount importance in daily activities, yet its study is challenging, as eye movements incessantly displace stimuli across this region. Here I will review work that, building on recent advances in eye-tracking and gaze-contingent display, examines how attention and eye movements operate at the foveal level. This research highlights how exploration of fine spatial detail unfolds following visuomoto...
Source: Vision Research - June 28, 2023 Category: Opthalmology Authors: Martina Poletti Source Type: research
An eye for detail: Eye movements and attention at the foveal scale
Vision Res. 2023 Jun 26;211:108277. doi: 10.1016/j.visres.2023.108277. Online ahead of print.ABSTRACTHuman vision relies on a tiny region of the retina, the 1-deg foveola, to achieve high spatial resolution. Foveal vision is of paramount importance in daily activities, yet its study is challenging, as eye movements incessantly displace stimuli across this region. Here I will review work that, building on recent advances in eye-tracking and gaze-contingent display, examines how attention and eye movements operate at the foveal level. This research highlights how exploration of fine spatial detail unfolds following visuomoto...
Source: Vision Research - June 28, 2023 Category: Opthalmology Authors: Martina Poletti Source Type: research
An eye for detail: Eye movements and attention at the foveal scale
Vision Res. 2023 Jun 26;211:108277. doi: 10.1016/j.visres.2023.108277. Online ahead of print.ABSTRACTHuman vision relies on a tiny region of the retina, the 1-deg foveola, to achieve high spatial resolution. Foveal vision is of paramount importance in daily activities, yet its study is challenging, as eye movements incessantly displace stimuli across this region. Here I will review work that, building on recent advances in eye-tracking and gaze-contingent display, examines how attention and eye movements operate at the foveal level. This research highlights how exploration of fine spatial detail unfolds following visuomoto...
Source: Vision Research - June 28, 2023 Category: Opthalmology Authors: Martina Poletti Source Type: research
An eye for detail: Eye movements and attention at the foveal scale
Vision Res. 2023 Jun 26;211:108277. doi: 10.1016/j.visres.2023.108277. Online ahead of print.ABSTRACTHuman vision relies on a tiny region of the retina, the 1-deg foveola, to achieve high spatial resolution. Foveal vision is of paramount importance in daily activities, yet its study is challenging, as eye movements incessantly displace stimuli across this region. Here I will review work that, building on recent advances in eye-tracking and gaze-contingent display, examines how attention and eye movements operate at the foveal level. This research highlights how exploration of fine spatial detail unfolds following visuomoto...
Source: Vision Research - June 28, 2023 Category: Opthalmology Authors: Martina Poletti Source Type: research
An eye for detail: Eye movements and attention at the foveal scale
Vision Res. 2023 Jun 26;211:108277. doi: 10.1016/j.visres.2023.108277. Online ahead of print.ABSTRACTHuman vision relies on a tiny region of the retina, the 1-deg foveola, to achieve high spatial resolution. Foveal vision is of paramount importance in daily activities, yet its study is challenging, as eye movements incessantly displace stimuli across this region. Here I will review work that, building on recent advances in eye-tracking and gaze-contingent display, examines how attention and eye movements operate at the foveal level. This research highlights how exploration of fine spatial detail unfolds following visuomoto...
Source: Vision Research - June 28, 2023 Category: Opthalmology Authors: Martina Poletti Source Type: research
An eye for detail: Eye movements and attention at the foveal scale
Vision Res. 2023 Jun 26;211:108277. doi: 10.1016/j.visres.2023.108277. Online ahead of print.ABSTRACTHuman vision relies on a tiny region of the retina, the 1-deg foveola, to achieve high spatial resolution. Foveal vision is of paramount importance in daily activities, yet its study is challenging, as eye movements incessantly displace stimuli across this region. Here I will review work that, building on recent advances in eye-tracking and gaze-contingent display, examines how attention and eye movements operate at the foveal level. This research highlights how exploration of fine spatial detail unfolds following visuomoto...
Source: Vision Research - June 28, 2023 Category: Opthalmology Authors: Martina Poletti Source Type: research
An eye for detail: Eye movements and attention at the foveal scale
Vision Res. 2023 Jun 26;211:108277. doi: 10.1016/j.visres.2023.108277. Online ahead of print.ABSTRACTHuman vision relies on a tiny region of the retina, the 1-deg foveola, to achieve high spatial resolution. Foveal vision is of paramount importance in daily activities, yet its study is challenging, as eye movements incessantly displace stimuli across this region. Here I will review work that, building on recent advances in eye-tracking and gaze-contingent display, examines how attention and eye movements operate at the foveal level. This research highlights how exploration of fine spatial detail unfolds following visuomoto...
Source: Vision Research - June 28, 2023 Category: Opthalmology Authors: Martina Poletti Source Type: research
Looking away to see: The acquisition of a search habit away from the saccade direction
Vision Res. 2023 Jun 23;211:108276. doi: 10.1016/j.visres.2023.108276. Online ahead of print.ABSTRACTGrowing evidence has shown that attention can be habit-like, unconsciously and persistently directed toward locations that have frequently contained search targets in the past. The attentional preference typically arises when the eye gaze aligns with the attended location. Here we tested whether this spatial alignment is necessary for the acquisition of a search habit. To divert eye movements away from an attended location, we used gaze-contingent eye tracking, restricting the visible portion of the screen to an area opposi...
Source: Vision Research - June 25, 2023 Category: Opthalmology Authors: Chen Chen Vanessa G Lee Source Type: research
Looking away to see: The acquisition of a search habit away from the saccade direction
Vision Res. 2023 Jun 23;211:108276. doi: 10.1016/j.visres.2023.108276. Online ahead of print.ABSTRACTGrowing evidence has shown that attention can be habit-like, unconsciously and persistently directed toward locations that have frequently contained search targets in the past. The attentional preference typically arises when the eye gaze aligns with the attended location. Here we tested whether this spatial alignment is necessary for the acquisition of a search habit. To divert eye movements away from an attended location, we used gaze-contingent eye tracking, restricting the visible portion of the screen to an area opposi...
Source: Vision Research - June 25, 2023 Category: Opthalmology Authors: Chen Chen Vanessa G Lee Source Type: research
Looking away to see: The acquisition of a search habit away from the saccade direction
Vision Res. 2023 Jun 23;211:108276. doi: 10.1016/j.visres.2023.108276. Online ahead of print.ABSTRACTGrowing evidence has shown that attention can be habit-like, unconsciously and persistently directed toward locations that have frequently contained search targets in the past. The attentional preference typically arises when the eye gaze aligns with the attended location. Here we tested whether this spatial alignment is necessary for the acquisition of a search habit. To divert eye movements away from an attended location, we used gaze-contingent eye tracking, restricting the visible portion of the screen to an area opposi...
Source: Vision Research - June 25, 2023 Category: Opthalmology Authors: Chen Chen Vanessa G Lee Source Type: research
The duration effect of short-term monocular deprivation measured by binocular rivalry and binocular combination
Vision Res. 2023 Jun 21;211:108278. doi: 10.1016/j.visres.2023.108278. Online ahead of print.ABSTRACTThe ocular dominance shift observed after short-term monocular deprivation is a widely used measure of visual homeostatic plasticity in adult humans. Binocular rivalry and binocular combination techniques are used interchangeably to characterize homeostatic plasticity, sometimes leading to contradictory results. Here we directly compare the effect of short-term monocular deprivation on ocular dominance measured by either binocular rivalry or binocular combination and its dependence on the duration of deprivation (15 or 120 ...
Source: Vision Research - June 23, 2023 Category: Opthalmology Authors: Antoine Prosper Martina Pasqualetti Maria Concetta Morrone Claudia Lunghi Source Type: research
