Flexible behavior requires guidance not only by sensations that are available immediately
but also by relevant mental contents carried forward through working memory. Therefore …

The superior colliculus (SC) has long been known to be part of the network of brain areas
involved in spatial attention, but recent findings have dramatically refined our understanding …

Bartlett viewed thinking as a high level skill exhibiting ballistic properties that he called its
“point of no return”. This paper explores one aspect of cognition through the use of a simple …

The two basic phenomena that define the problem of visual attention can be illustrated in a
simple example. Consider the arrays shown in each panel of Figure 1. In a typical …

The possibility that speech perception is achieved partly by the listener's reference to stored
information about his or her speech production has been and, presumably will continue to …

A number of psychophysical studies concerning the detection, localization and recognition
of objects in the visual field have suggested a two-stage theory of human visual perception …

The superior colliculus is one of the most well-studied structures in the brain, and with each
new report, its proposed role in behavior seems to increase in complexity. Forty years of …

Reports 5 experiments conducted with 52 paid Ss in which detection of a visual signal
required information to reach a system capable of eliciting arbitrary responses required by …

The prefrontal cortex makes up almost a quarter of the human brain, and it expanded
dramatically during primate evolution. The Neurobiology of the Prefrontal Cortex presents a …

When we attempt to fix our gaze, our eyes nevertheless produce so-called'fixational eye
movements', which include microsaccades, drift and tremor. Fixational eye movements …