An important component of routine visual behavior is the ability to find one item in a visual
world filled with other, distracting items. This ability to perform visual search has been the …

Visual stimuli contain a limited amount of information that could potentially be used to
perform a given visual task. At successive stages of visual processing, some of this …

Summary In Shakespeare's Henry IV Part 1, the Scottish rebel, the Earl of Douglas, engages
in a visual search task. He is searching for King Henry in a field full of soldiers who are not …

When we observe our visual environment, we do not perceive all its components as being
equally interesting. Some objects automatically and effortlessly “pop-out” from their …

The mechanisms of perceptual learning are analyzed theoretically, probed in an orientation-
discrimination experiment involving a novel nonstationary context manipulation, and …

We compare improvement through training in vernier acuity under different feedback
conditions in order to clarify the role of feedback during learning of a perceptual task and to …

We investigated fast improvement of visual performance in several hyperacuity tasks such
as vernier acuity and stereoscopic depth perception in almost 100 observers. Results …

Sensory information is encoded both in space and in time. Spatial encoding is based on the
identity of activated receptors, while temporal encoding is based on the timing of activation …

Statistical decision theory suggests that choosing an ideal action requires taking several
factors into account:(1) prior knowledge of the probability of various world states,(2) sensory …

When macaque monkeys view achromatic, sinusoidal gratings of a single spatial frequency,
the pattern of 14C-2-deoxy-d-glucose (DG) uptake produced by the gratings is shown to …