Publications de Lukasz Grzeczkowski

Individual differences in the perception of visual illusions are stable across eyes, time, and measurement methods

Michael Herzog, Aline Françoise Cretenoud, Lukasz Grzeczkowski

Vision scientists have tried to classify illusions for more than a century. For example, some studies suggested that there is a unique common factor for all visual illusions. Other studies proposed that there are several subclasses of illusions, such as il ...

2021

About common factors in vision

Michael Herzog, Maya Roinishvili, Ophélie Gladys Favrod, Aline Françoise Cretenoud, Lukasz Grzeczkowski, Simona Adele Garobbio, Janir Nuno Ramos Antunes Da Cruz, Dario Alejandro Gordillo Lopez

Often, we intuitively assume that there are common factors in life. For example, we test people with a visual acuity test to determine whether they are allowed to drive a car or not- with the implicit assumption that the acuity test is representative of vi ...

SAGE Publishing2021

Individual differences in the Müller-Lyer and Ponzo illusions are stable across different contexts

Michael Herzog, Aline Françoise Cretenoud, Lukasz Grzeczkowski

Vision scientists have attempted to classify visual illusions according to certain aspects, such as brightness or spatial features. For example, Piaget proposed that visual illusion magnitudes either decrease or increase with age. Subsequently, it was sugg ...

2020

The Individual Structure of Visual Space

Michael Herzog, Gregory Francis, Aline Françoise Cretenoud, 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

SAGE PUBLICATIONS LTD2019

Factors underlying visual illusions are illusion-specific but not feature-specific

Michael Herzog, Gregory Francis, Aline Françoise Cretenoud, Lukasz Grzeczkowski

Common factors are ubiquitous. For example, there is a common factor, g, for intelligence. In vision, there is much weaker evidence for such common factors. For example, visual illusion magnitudes correlate only weakly with each other. Here, we investigate ...

2019

About Specific and General Factors for Visual Illusions

Michael Herzog, Gregory Francis, Aline Françoise Cretenoud, Lukasz Grzeczkowski

SAGE PUBLICATIONS LTD2019

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

About specific and general factors for visual illusions

Michael Herzog, Gregory Francis, Aline Françoise Cretenoud, Lukasz Grzeczkowski

Contrary to studies of audition and cognition, we previously did not find evidence for a general common factor for vision but for many very specific ones. For example, we found strong correlations between 19 versions of the Ebbinghaus illusion, which diffe ...

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

Sex-related differences in vision are heterogeneous

Michael Herzog, Maya Roinishvili, Lukasz Grzeczkowski, Christine Mohr, Albulena Jashari-Shaqiri

Nature Research2018

How to classify visual illusions? The role of intellectual development

Michael Herzog, Aline Françoise Cretenoud, Lukasz Grzeczkowski

2018

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 lack of attention necessary for task-irrelevant perceptual learning?

Michael Herzog, Lukasz Grzeczkowski, Jessica Galliussi

Perceptual learning can occur for a feature irrelevant to the training task, when it is sub-threshold and outside of the focus of attention (task-irrelevant perceptual learning, TIPL); however, TIPL does not occur when the task-irrelevant feature is supra- ...

PERGAMON-ELSEVIER SCIENCE LTD2018

The individual structure of visual space

Michael Herzog, Gregory Francis, Aline Françoise Cretenoud, Lukasz Grzeczkowski, Albulena Jashari-Shaqiri

Common factors are ubiquitous. First, we show that, however in vision, correlations of performance in similar paradigms are low even though test-retest reliability is high. Second, one might expect that correlations increase with increasing age because of ...

2018

What is new in perceptual learning?

Michael Herzog, Aline Françoise Cretenoud, Lukasz Grzeczkowski

What is new in perceptual learning? In the early days of research, specificity was the hallmark of perceptual learning; that is, improvements following training were limited to the trained stimulus features. For example, training with a stimulus improves p ...

Association for Research in Vision and Ophthalmology (ARVO)2017

How many factors are there in vision?

Michael Herzog, Gregory Francis, Aline Françoise Cretenoud, Lukasz Grzeczkowski

Common factors are ubiquitous in cognition, audition, and somato-sensation. Surprisingly, there seems to be no common factor in vision, i.e., visual tasks correlate very weakly with each other. Here, we show that there are likely many very specific factors ...

2017

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

Double training reduces motor response specificity

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

Association for Research in Vision and Ophthalmology2017

The Structure of Visual Space

Michael Herzog, Gregory Francis, Aline Françoise Cretenoud, Lukasz Grzeczkowski

Association for Research in Vision and Ophthalmology2017