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�…

ABSTRACT A peripheral visual cue produces an orienting of attention that facilitates
detection of targets in the cued area. Following a shift of attention away from the cued area�…

We measured manual reaction time in normal human Ss to confirm that an eccentric visual
signal has a biphasic effect on covert attention and eye movements. First, it summons�…

Spatial selectivity, which is essential in the perception of any visual scene or display, can be
accomplished in two quite distinct ways. First, overt adjustments of gaze direction can be�…

ABSTRACT At Attention and Performance VIII, Klein proposed that endogenous covert
orienting of attention might be accomplished by preparing to move the eyes to the to-be�…

1. A task was used by Posner (1980) to measure shifts of attention that occurred covertly, in
the absence of an eye movement or other orienting response. This paradigm was used here�…

Selective processing of the visual world is accomplished through overt shifts of gaze
direction and covert shifts of attention. Such visual orienting, whether overt or covert, can be�…

A peripheral visual cue in an empty field (1) often summons head or eyes, or both,(2)
improves efficiency at. the cued position while attention is directed to it, even without overt�…

Our response to visual events can be delayed at positions we have recently examined
attentively. Such inhibition could organize visual search through static scenes by�…

A goal of neuropsychology is to connect cognitive functions with underlying neural systems.
Posner (1984; in press) has proposed a framework for doing so in which elementary mental�…