Concept

Visual field test

Publications associées (127)

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Seeing your error alters my pointing: observing systematic pointing errors induces sensori-motor after-effects

Roberta Ronchi

During the procedure of prism adaptation, subjects execute pointing movements to visual targets under a lateral optical displacement: as consequence of the discrepancy between visual and proprioceptive inputs, their visuo-motor activity is characterized by ...

Public Library of Science2011

Preference is biased by crowded facial expressions

Nathan Quentin Faivre

Crowding occurs when nearby flankers impede the identification of a peripheral stimulus. Here, we studied whether crowded features containing inaccessible emotional information can nevertheless affect preference judgments. We relied on gaze-contingent crow ...

2011

A 99 Dollar Head-Mounted Eye Tracker

Pierre Dillenbourg, Frédéric Kaplan, Andrea Mazzei, Youri Marko

Head-mounted eye-trackers are powerful research tools to study attention processes in various contexts. Most existing commercial solutions are still very expensive, limiting the current use of this technology. We present a hardware design to build, at low ...

2011

Functional specialization and dynamic resource allocation in visual cortex

Gijs Plomp

We studied the spatiotemporal characteristics of cortical activity in early visual areas and the fusiform gyri (FG) by means of magnetoencephalography (MEG). Subjects performed a visual classification task, in which letters and visually similar pseudolette ...

Wiley-Blackwell2010

Grouping and Gestalt in Visual Contextual Modulation

Bilge Sayim

The perception of a visual stimulus is strongly modulated by surrounding elements. This phenomenon, called contextual modulation, can be exemplary observed in a large number of visual illusions, e.g. in the tilt-illusion where a vertical grating appears ti ...

EPFL2010

Rehabilitating patients with left spatial neglect by prism exposure during a visuomotor activity

Roberta Ronchi, Giuseppe Vallar

OBJECTIVE: Adaptation to prisms displacing the visual scene rightward is a therapeutic tool for left unilateral spatial neglect (USN). We aimed at comparing the effects of the classic adaptation procedure (repeated pointing toward visual targets, control t ...

2010

Age-related differences in temporal processing

Michael Herzog, Maya Roinishvili

Visual backward masking paradigm, as determined with the shine-through effect, is a very sensitive tool to detect age related differences in visual temporal processing. We presented a vernier offset to the left or right followed by a grating mask which imp ...

2009

Contextual modulation in human vision

Toni Saarela

The processing and perception of visual stimuli are greatly dependent on the context in which those stimuli are presented. While this is not always (and indeed is probably not "supposed" to be) evident when viewing real-world scenes, the abundance of conte ...

EPFL2009

Visual Activity Context For Focus of Attention Estimation in Dynamic Meetings

Jean-Marc Odobez, Silèye Oumar Ba

We address the problem of recognizing, in dynamic meetings in which people do not remain seated all the time, the visual focus of attention (VFOA) of seated people from their head pose and contextual activity cues. We propose a model that comprises the VFO ...

2009

Visual activity context for focus of attention estimation in dynamic meetings

Jean-Marc Odobez, Silèye Oumar Ba

Idiap2009