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Nonlinear ideal observation and recurrent preprocessing in perceptual learning

Publications associées (103)

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Global stimulus configuration modulates crowding

Michael Herzog, Bilge Sayim, Toni Saarela

In crowding, neighboring elements impair the perception of a peripherally presented target. Crowding is often regarded to be a consequence of spatial pooling of information that leads to the perception of textural wholes. We studied the effects of stimulus ...

Association for Research in Vision and Ophthalmology2009

Enhanced temporal but not attentional processing in expert tennis players

Michael Herzog, Olaf Blanke

In tennis, as in many disciplines of sport, fine spatio-temporal resolution is required to reach optimal performance. While many studies on tennis have focused on anticipatory skills or decision making, fewer have investigated the underlying visual percept ...

Public Library of Science2008

Contextual suppression and protection in schizophrenic patients

Michael Herzog, Maya Roinishvili

INTRODUCTION: Contextual processing is often strongly deteriorated in schizophrenic patients as found, for example, in higher cognitive as well as lower visual paradigms. In visual detection tasks, impoverished contextual facilitation was attributed to abe ...

Springer Verlag2008

Non-retinotopic feature integration in human vision

Thomas Otto

How features are attributed to objects is one of the most puzzling issues in the neurosciences. According to a deeply entrenched view, the analysis of features is spatially localized and, consequently, features are perceived according to the locations wher ...

EPFL2008

Time-course and surround modulation of contrast masking in human vision

Michael Herzog, Toni Saarela

Neural and perceptual responses to a visual stimulus can be suppressed by the addition of both spatially overlapping and spatially adjacent contextual stimuli. We investigated the temporal characteristics of these suppressive interactions in psychophysical ...

Association for Research in Vision and Ophthalmology2008

Modeling spatial and temporal aspects of visual backward masking

Michael Herzog, Wulfram Gerstner, Gediminas Luksys

Visual backward masking is a versatile tool for understanding principles and limitations of visual information processing in the human brain. However, the mechanisms underlying masking are still poorly understood. In the current contribution, the authors s ...

American Psychological Association2008

Object Category Detection using Audio-visual Cues

Barbara Caputo, Jie Luo

Categorization is one of the fundamental building blocks of cognitive systems. Object categorization has traditionally been addressed in the vision domain, even though cognitive agents are intrinsically multimodal. Indeed, biological systems combine severa ...

2008

Crowding is modulated by global stimulus configuration

Michael Herzog, Bilge Sayim, Toni Saarela

In crowding, neighbouring elements impair the perception of a target. Crowding is often considered a consequence of spatial pooling of visual information. We investigated the role of configural effects in crowding by manipulating the global stimulus config ...

2008

When does roving disrupt perceptual learning?

Michael Herzog, Elisa Tartaglia, Carl Kristoffer Aberg

Training with one type of a visual stimulus usually improves performance. When observers train with two or more stimulus types presented in random order (so-called roving), performance improves for certain stimulus types but not for others. To understand w ...

2008

Spatial processing and visual backward masking

Michael Herzog

Most theories of visual masking focus primarily on the temporal aspects of visual information processing, strongly neglecting spatial factors. In recent years, however, we have shown that this position is not tenable. Spatial aspects cannot be neglected in ...

Vizja Press & IT2007