Publications de Fred Mast | EPFL Graph Search

Imagined paralysis alters somatosensory evoked-potentials

Olaf Blanke, Fred Mast, Christophe Lopez, Estelle Palluel, Silvia Marchesotti

Recent studies employing body illusions have shown that multisensory conflict can alter body representations and modulate low-level sensory processing. One defining feature of these body illusions is that they are sensory driven and thus passive on behalf ...

2020

Motor response specificity in perceptual learning and its release by double training

Michael Herzog, Fred Mast, Aline Françoise Cretenoud, Lukasz Grzeczkowski

Perceptual learning is usually feature-specific. Recently, we showed that perceptual learning is even specific for the motor response type. In a three-line bisection task, participants indicated whether the central line was offset either to the left or rig ...

2019

Perception of Visual Illusions Is Intact in Schizophrenia

Michael Herzog, Fred Mast, Maya Roinishvili, Lukasz Grzeczkowski, Albulena Jashari-Shaqiri

SAGE PUBLICATIONS LTD2019

Perception of visual illusions is intact in schizophrenia

Michael Herzog, Fred Mast, Maya Roinishvili, Lukasz Grzeczkowski, Albulena Jashari-Shaqiri

There seems to be no common factor for visual perception because performance levels in many visual tasks correlate only weakly with each other. Similar results were found with visual illusions. However, one may expect common visual factors for individuals ...

2018

Is the perception of illusions abnormal in schizophrenia?

Michael Herzog, Fred Mast, Maya Roinishvili, Lukasz Grzeczkowski, Albulena Jashari-Shaqiri

There seems to be no common factor for visual perception, i.e., performance in visual tasks correlates only weakly with each other. Similar results were found with visual illusions. One may expect common visual factors for individuals suffering from pathol ...

2018

About individual differences in vision

Michael Herzog, Fred Mast, Gregory Francis, Aaron Michael Clarke, Lukasz Grzeczkowski

In cognition, audition, and somatosensation, performance strongly correlates between different paradigms, which suggests the existence of common factors. In contrast, visual performance in seemingly very similar tasks, such as visual and bisection acuity, ...

Elsevier2017

Perceptual learning is specific beyond vision and decision making

Michael Herzog, Fred Mast, Aline Françoise Cretenoud, Lukasz Grzeczkowski

Perceptual learning is usually assumed to occur within sensory areas or when sensory evidence is mapped onto decisions. Subsequent procedural and motor processes, involved in most perceptual learning experiments, are thought to play no role in the learning ...

Association for Research in Vision and Ophthalmology2017

Double training reduces motor response specificity

Michael Herzog, Fred Mast, Aline Françoise Cretenoud, Lukasz Grzeczkowski

Association for Research in Vision and Ophthalmology2017

Tell me about your Ponzo and I will tell you who you are

Michael Herzog, Fred Mast, Aaron Michael Clarke, Lukasz Grzeczkowski

Unlike in cognition, audition and somatosensation, performance between various visual tasks does not correlate. Surprisingly, even tasks that appear similar, like visual acuity and line bisection task do not share much common variance. Similar results were ...

2016

Response mode specificity of perceptual learning

Michael Herzog, Fred Mast, Lukasz Grzeczkowski

Association for Research in Vision and Ophthalmology2016

Linking perceptual learning with identical stimuli to imagery perceptual learning

Michael Herzog, Fred Mast, Elisa Tartaglia, Lukasz Grzeczkowski

Perceptual learning is usually thought to be exclusively driven by the stimuli presented during training (and the underlying synaptic learning rules). In some way, we are slaves of our visual experiences. However, learning can occur even when no stimuli ar ...

Association for Research in Vision and Ophthalmology2015

No correlations between the strength of visual illusions

Michael Herzog, Fred Mast, Aaron Michael Clarke, Lukasz Grzeczkowski

In cognition, audition, and somatosensation, performance correlates strongly between different paradigms suggesting the existence of common factors. Surprisingly, this does not hold true for vision. For example, performance in line bisection and visual acu ...

Sage Publications Ltd2015

No correlations between visual illusion strength

Michael Herzog, Fred Mast, Aaron Michael Clarke, Lukasz Grzeczkowski

In cognition, audition and somatosensation, performance correlates strongly between different tasks suggesting the existence of common factors. Surprisingly, this does not hold true for vision. For example, Vernier acuity and Gabor detection correlate very ...

2015

No correlations between the magnitude of visual illusions

Michael Herzog, Fred Mast, Aaron Michael Clarke, Lukasz Grzeczkowski

In cognition, audition and somatosensation, performance correlates strongly between different tasks suggesting the existence of common factors. Surprisingly, this does not hold true for vision. For example, Vernier acuity and Gabor detection correlate very ...

Association for Research in Vision and Ophthalmology2015

Perceptual Learning With Only One Stimulus

Michael Herzog, Fred Mast, Elisa Tartaglia, Lukasz Grzeczkowski

Perceptual learning is learning to see. For example in a bisection task, three parallel lines are presented with the central line slightly offset towards the right or the left outer line. Participants indicate the offset direction. Training gradually impro ...

2014

Deleterious effects of roving on learned tasks

Michael Herzog, Fred Mast, Aaron Michael Clarke, Lukasz Grzeczkowski

In typical perceptual learning experiments, one stimulus type (e.g., a bisection stimulus offset either to the left or right) is presented per trial. In roving, two different stimulus types (e.g., a 30' and a 20' wide bisection stimulus) are randomly inter ...

Pergamon-Elsevier Science Ltd2014

Self-motion perception training: thresholds improve in the light but not in the dark

Michael Herzog, Fred Mast

We investigated perceptual learning in self-motion perception. Blindfolded participants were displaced leftward or rightward by means of a motion platform and asked to indicate the direction of motion. A total of eleven participants underwent 3,360 practic ...

Springer2013

Perceptual learning of motion discrimination by mental imagery

Michael Herzog, Fred Mast, Elisa Tartaglia, Laura Bamert

Perceptual learning can occur when stimuli are only imagined, i.e., without proper stimulus presentation. For example, perceptual learning improved bisection discrimination when only the two outer lines of the bisection stimulus were presented and the cent ...

Association for Research in Vision and Ophthalmology2012

New Percepts via Mental Imagery?

Michael Herzog, Fred Mast, Elisa Tartaglia

Frontiers Media2012

Mental imagery learning improves motion direction discrimination

Michael Herzog, Fred Mast, Elisa Tartaglia, Laura Bamert

2010