Publications de Gregory Francis

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Too much success for recent groundbreaking epigenetic experiments

Gregory Francis

An article reporting statistical evidence for epigenetic transfer of learned behavior has important implications, if true. With random sampling, real effects do not always result in rejection of the null hypothesis, but the reported experiments were unifor ...

Genetics Society of America2014

Excess Success for Psychology Articles in the Journal Science

Gregory Francis

This article describes a systematic analysis of the relationship between empirical data and theoretical conclusions for a set of experimental psychology articles published in the journal Science between 2005-2012. When the success rate of a set of empirica ...

Public Library of Science2014

When the picture is complete, crowding disappears, and grouping rules

Michael Herzog, Gregory Francis, Mauro Manassi

In crowding, the perception of a target strongly deteriorates when flanked by neighboring elements. Crowding is often explained in terms of pooling, i.e., averaging target and flanker signals. The pooling hypothesis predicts stronger crowding when the numb ...

2012

Testing dynamical models of vision

Michael Herzog, Gregory Francis, Johannes Rüter

Most models of vision focus either on the spatial or temporal aspects of visual processing and neglect the other component. A variety of studies have shown, however, that spatial and temporal processing cannot easily be separated. The shine-through effect ...

Elsevier2011

Combining simultaneous with temporal masking

Michael Herzog, Gregory Francis

Simultaneous and temporal masking are two frequently used techniques in psychology and vision science. Although there are many studies and theories related to each masking technique, there are no systematic investigations of their mutual relationship, even ...

American Psychological Association2009

The roles of mask luminance and perceptual grouping in visual backward masking

Michael Herzog, Gregory Francis

Visual backward masking is a commonly used technique in vision research and psychology. There are two distinct types of masking. Either masking is strongest for a simultaneous presentation of the target and the mask (A-type masking) or masking is strongest ...

Association for Research in Vision and Ophthalmology2009

Visual masking and the dynamics of human perception, cognition, and consciousness: A century of progress, a contemporary synthesis, and future directions

Michael Herzog, Gregory Francis

The 1990s, the "decade of the brain", witnessed major advances in the study of visual perception, cognition, and consciousness. Impressive techniques in neurophysiology, neuroanatomy, neuropsychology, electrophysiology, psychophysics and brain-imaging were ...

Vizja Press & IT2007

What is the strength of a mask in visual metacontrast masking?

Michael Herzog, Gregory Francis

After more than a century of research, the mechanisms underlying visual masking are still hotly debated. One key characteristic of masking is that variations in the stimulus onset asynchrony (SOA) between the target and the mask can lead to either monotoni ...

Association for Research in Vision and Ophthalmology2007

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

Gregory Francis

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Too much success for recent groundbreaking epigenetic experiments

Excess Success for Psychology Articles in the Journal Science

When the picture is complete, crowding disappears, and grouping rules

Testing dynamical models of vision

Combining simultaneous with temporal masking

The roles of mask luminance and perceptual grouping in visual backward masking

Effects of temporal integration masking on the shape of visual backward functions

Visual masking and the dynamics of human perception, cognition, and consciousness: A century of progress, a contemporary synthesis, and future directions

What is the strength of a mask in visual metacontrast masking?

Testing quantitative models of backward masking

The roles of mask luminance and perceptual grouping in visual backward masking

Excess Success for Psychology Articles in the Journal Science

Too much success for recent groundbreaking epigenetic experiments

When the picture is complete, crowding disappears, and grouping rules

Testing dynamical models of vision

Combining simultaneous with temporal masking

Effects of temporal integration masking on the shape of visual backward functions

What is the strength of a mask in visual metacontrast masking?

Testing quantitative models of backward masking

Visual masking and the dynamics of human perception, cognition, and consciousness: A century of progress, a contemporary synthesis, and future directions