Éric Castet
YOU?
Author Swipe
View article: Lawful kinematics link eye movements to the limits of high-speed perception
Lawful kinematics link eye movements to the limits of high-speed perception Open
Perception requires active sampling of the environment. What part of the physical world can be perceived is limited by the sensory system’s biophysical setup, but might be further constrained by the kinematic bounds of the motor actions us…
View article: PTVR – A software in Python to make virtual reality experiments easier to build and more reproducible
PTVR – A software in Python to make virtual reality experiments easier to build and more reproducible Open
Researchers increasingly use virtual reality (VR) to perform behavioral experiments, especially in vision science. These experiments are usually programmed directly in so-called game engines that are extremely powerful. However, this proce…
View article: Linguistic processes intervene much later than visuo-motor processes during an eye fixation: Evidence from Fixation-Related Potentials during reading.
Linguistic processes intervene much later than visuo-motor processes during an eye fixation: Evidence from Fixation-Related Potentials during reading. Open
International audience
View article: Pointing at static targets in a virtual reality environment: performance of visually impaired vs. normally-sighted persons
Pointing at static targets in a virtual reality environment: performance of visually impaired vs. normally-sighted persons Open
Virtual reality (VR) offers innovative perspectives in the field of visual impairment. The general and exploratory goal of this study was to investigate how well the patients performed a pointing task compared to normally-sighted controls.…
View article: Lawful kinematics link eye movements to the limits of high-speed perception
Lawful kinematics link eye movements to the limits of high-speed perception Open
Perception relies on active sampling of the environment. What part of the physical world can be sensed is limited by biophysical constraints of sensory systems, but might be further constrained by the kinematic bounds of the motor actions …
View article: A New Vessel-Based Method to Estimate Automatically the Position of the Nonfunctional Fovea on Altered Retinography From Maculopathies
A New Vessel-Based Method to Estimate Automatically the Position of the Nonfunctional Fovea on Altered Retinography From Maculopathies Open
The VBFL method should allow researchers and clinicians to assess automatically the eccentricity of a newly developed area of fixation in fundus images with macular lesions.
View article: PTVR - a visual perception software in Python to make virtual reality experiments easier to build and more reproducible
PTVR - a visual perception software in Python to make virtual reality experiments easier to build and more reproducible Open
Researchers increasingly use Virtual Reality (VR) to perform behavioral experiments, especially in Vision Science. These experiments are usually programmed directly in so-called game engines that are extremely powerful. However, this proce…
View article: Neural correlates of intra-saccadic motion perception
Neural correlates of intra-saccadic motion perception Open
Retinal motion of the visual scene is not consciously perceived during ocular saccades in normal everyday conditions. It has been suggested that extra-retinal signals actively suppress intra-saccadic motion perception to preserve stable pe…
View article: How to Estimate Fovea Position When The Fovea Cannot Be Identified Visually Anymore?
How to Estimate Fovea Position When The Fovea Cannot Be Identified Visually Anymore? Open
International audience
View article: Can patients with central field loss perform head pointing in a virtual reality environment?
Can patients with central field loss perform head pointing in a virtual reality environment? Open
Introduction: Virtual Reality (VR) headsets are raising more and more interest from the low-vision research community since they offer a promising framework for low-vision aids and rehabilitation protocols. However, the study of VR accessi…
View article: Reading with maculopathy: the inhibitory effect of word neighborhood size is modulated by word predictability and reading proficiency
Reading with maculopathy: the inhibitory effect of word neighborhood size is modulated by word predictability and reading proficiency Open
Background: For normally sighted readers, word neighborhood size (i.e., the total number of words that can be formed from a single word by changing only one letter) has a facilitator effect on word recognition. When reading with central fi…
View article: Text Simplification to Help Individuals With Low Vision Read More Fluently
Text Simplification to Help Individuals With Low Vision Read More Fluently Open
The objective of this work is to introduce text simplification as a potential reading aid to help improve the poor reading performance experienced by visually impaired individuals. As a first step, we explore what makes a text especially c…
View article: Linguistic processes do not beat visuo-motor constraints, but they modulate where the eyes move regardless of word boundaries: Evidence against top-down word-based eye-movement control during reading
Linguistic processes do not beat visuo-motor constraints, but they modulate where the eyes move regardless of word boundaries: Evidence against top-down word-based eye-movement control during reading Open
Where readers move their eyes, while proceeding forward along lines of text, has long been assumed to be determined in a top-down word-based manner. According to this classical view, readers of alphabetic languages would invariably program…
View article: Selected data from the French Sentence Corpus for analyses of word skipping, using all words in the sentences that responded to our selection criteria.
Selected data from the French Sentence Corpus for analyses of word skipping, using all words in the sentences that responded to our selection criteria. Open
Selected data from the French Sentence Corpus (FSC) for analysis of the likelihood of word skipping as a function of the words' length and frequency, as well as saccades' launch-site distance to the beginning of words.
View article: Selected data from the French Sentence Corpus for analyses of saccades' overall landing positions, using all words in the sentences that responded to our selection criteria.
Selected data from the French Sentence Corpus for analyses of saccades' overall landing positions, using all words in the sentences that responded to our selection criteria. Open
Selected data from the French Sentence Corpus (FSC) for analysis of saccades' overall landing positions relative to the center of the next word on the line (N+1), whether or not saccades landed on this word, as a function of the length and…
View article: Selected data from the French Sentence Corpus for analysis of initial eye landing positions in the target words
Selected data from the French Sentence Corpus for analysis of initial eye landing positions in the target words Open
Selected data from the French Sentence Corpus (FSC) for analysis of initial eye landing positions in the test words as a function of the test words' length, frequency and predictability, as well as the saccades' launch-site distance to the…
View article: Selected data from the French Sentence Corpus for analyses of target-word skipping.
Selected data from the French Sentence Corpus for analyses of target-word skipping. Open
Selected data from the French Sentence Corpus (FSC) for analysis of the likelihood of skipping the test words as a function of the test words' length, frequency and predictability, as well as saccades' launch-site distance to the beginning…
View article: Selected data from the French Sentence Corpus for analysis of target-word skipping.
Selected data from the French Sentence Corpus for analysis of target-word skipping. Open
Selected data from the French Sentence Corpus (FSC) for analysis of the likelihood of skipping the test words as a function of the test words' length, frequency and predictability, as well as saccades' launch-site distance to the beginning…
View article: Selected data from the French Sentence Corpus for analyses of within-word initial eye landing positions, using all words in the sentences that responded to our selection criteria.
Selected data from the French Sentence Corpus for analyses of within-word initial eye landing positions, using all words in the sentences that responded to our selection criteria. Open
Selected data from the French Sentence Corpus (FSC) for analysis of within-word landing positions as a function of the words' length and frequency, as well as saccades' launch-site distance to the beginning of words.
View article: Numeral Legibility and Visual Complexity
Numeral Legibility and Visual Complexity Open
To enhance the peripheral legibility of numerals we designed three versions of the digits from 1 through 9 by modifying the complexity of each numeral (equivalent to their digit skeleton) while controlling for variations in other physical …
View article: Motion Masking by Stationary Objects: A Study of Simulated Saccades
Motion Masking by Stationary Objects: A Study of Simulated Saccades Open
Saccades are crucial to visual information intake by re-orienting the fovea to regions of interest in the visual scene. However, they cause drastic disruptions of the retinal input by shifting the retinal image at very high speeds. The res…
View article: Letter and symbol identification: No evidence for letter-specific crowding mechanisms
Letter and symbol identification: No evidence for letter-specific crowding mechanisms Open
It has been proposed that letters, as opposed to symbols, trigger specialized crowding processes, boosting identification of the first and last letters of words. This hypothesis is based on evidence that single-letter accuracy as a functio…
View article: Dynamic differences in letter contrast polarity improve peripheral letter string and word recognition performance
Dynamic differences in letter contrast polarity improve peripheral letter string and word recognition performance Open
Letter crowding (the inability to identify a letter when surrounded by other letters) is reduced when target and flankers are dissimilar. This release is particularly strong when target and flankers have different contrast polarities (Kooi…