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

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Motor intention in the posterior parietal cortex

Jugoslava Acimovic

The complexity of processes occurring in the brain is an intriguing issue not just for scientists and medical doctors, but the humanity in general. The cortex ability to perceive and analyze an enormous amount of information in an instance of time, the par ...

EPFL2008

Grouping in the shine-through effect

Michael Herzog

How the elements of a visual scene are grouped into objects is one of the most fundamental but still poorly understood questions in visual neuroscience. Most investigations of perceptual grouping focus on static stimuli, neglecting temporal aspects. Using ...

Springer-Verlag2008

Valences in contextual vision

Michael Herzog

Elements in the neighborhood of a stimulus can modulate both the subjective perception of and the neural responses to this stimulus. Investigations of this contextual modulation usually focus on low level features such as the orientation difference between ...

Elsevier2004

Testing quantitative models of backward masking

Michael Herzog, Gregory Francis

We analyzed the relationship between U-shaped and monotonic-shaped masking functions, using both computer simulations of quantitative models and experimental data Our analysis revealed that quantitative models of backward masking predict that U-shaped mask ...

Psychonomic Society2004

Local interactions in neural networks explain global effects in Gestalt processing and masking

Michael Herzog

One of the fundamental and puzzling questions in vision research is how objects are segmented from their backgrounds and how object formation evolves in time. The recently discovered shine-through effect allows one to study object segmentation and object f ...

Massachusetts Institute of Technology Press2003

Nonlinear ideal observation and recurrent preprocessing in perceptual learning

Michael Herzog

Residual micro-saccades, tremor and fixation errors imply that, on different trials in visual tasks, stimulus arrays are inevitably presented at different positions on the retina. Positional variation is likely to be specially important for tasks involving ...

Taylor & Francis2003

Collinear contextual suppression

Michael Herzog

The context of a target can modulate behavioral as well as neural responses to that target. For example, target processing can be suppressed by iso-oriented surrounds whereas it can be facilitated by collinear contextual elements. Here, we present experime ...

Elsevier2003