What are the mechanisms of spatial attention underlying precue validity effects? We answer
this question within the framework of a perceptual template model (PTM)[Lu & Dosher …

To investigate the nature of external noise exclusion, we compared central spatial precuing
effects in 16 conditions that varied the amount of external noise, the number of signal stimuli …

Precue validity affects the performance of perceptual tasks. These spatial attention effects
have been variously attributed to facilitation of processing, capacity allocation, or noise …

This study used peripheral precueing to explore the effect of covert transient attention on
performance in spatial resolution tasks. Experiments 1 (Landolt-square) and 2 ('broken-line') …

In 2 earlier sets of experiments, the author reported that shape discrimination in an
otherwise empty visual field is facilitated when the target shape is preceded by a valid …

The external noise paradigm (Z.-L. Lu & BA Dosher, 1998) was applied to investigate
mechanisms of spatial attention in location precuing. Observers were precued or …

We developed and tested a powerful method for identifying and characterizing the effect of
attention on performance in visual tasks as due to signal enhancement, distractor exclusion …

The effects of attention on visual perception are assessed in the location-precuing paradigm.
First, we present a review of some current metaphors for attention and relevant data. Then, a …

Mask-dependent cuing effects, like those previously found in yes–no detection, were found
in a task in which observers judged the orientations of orthogonally-oriented Gabor patches …

Previous studies have shown that the voluntary allocation of attention to a location in space
can influence accuracy in two ways. First, additional processing resources can be allocated …