No sensory stimulus is an island unto itself; rather, it can only properly be interpreted in light
of the stimuli that surround it in space and time. This can result in entertaining illusions and …

This article aims at making readers, experimentalists and theorists, more aware of the
abstractions made by an observer when measuring and reporting behavioral and neural …

A key emergent property of the primary visual cortex (V1) is the orientation selectivity of its
neurons. The extent to which adult visual cortical neurons can exhibit changes in orientation …

This essay is presented with two principal objectives in mind: first, to document the
prevalence of fractals at all levels of the nervous system, giving credence to the notion of …

Biological structures can be seen as collections of special devices coordinated by a matrix of
organization. Devices are dif? cult to evolve and are meticulously conserved through the …

Several recent demonstrations using visual adaptation have revealed high-level aftereffects
for complex patterns including faces. While traditional aftereffects involve perceptual …

How do neural populations adapt to the time-varying statistics of sensory input? We used
two-photon imaging to measure the activity of neurons in mouse primary visual cortex …

Spatial frequency adaptation is shown to cause a decrease in the exponent of the power law
describing contrast increment thresholds. Next we show that spatial frequency adaptation …

Recent work from several groups has shown that perception of various visual attributes in
human observers at a given moment is biased toward what was recently seen. This positive …

Recent stimulus history—adaptation—alters neuronal responses and perception. Previous
electrophysiological and perceptual studies suggest that prolonged adaptation strengthens …