Journal of experimental psychology: human perception and performance.

We examined the nonveridicality of visual direction produced by monocular viewing. In Experiment 1, 19 subjects pointed to a small light and moved a small light to their subjective median plane. The extent of constant error under monocular and…

Twelve subjects responded to target letters "H" or "S" by squeezing dynamometers with the left or right hand. Targets could be surrounded by compatible (e.g., HHHHH) or incompatible noise (SSHSS) letters. Measures of the P300 component of the…

Six subjects performed a manual tracking task concurrently with each of two secondary tasks : an input task (auditory signal detection) and an output task (application of a constant force). A feedback-control analysis of track- ing performance was…

People often learn actions by watching others. The authors propose and test the hypothesis that perspective taking promotes encoding a hierarchical representation of an actor's goals and subgoals-a key process for observational learning. Observers…

In visual search, a set of distractor items can be suppressed from future selection if they are presented (previewed) before a second set of search items arrive. This visual marking mechanism provides a top-down way of prioritizing the selection of…

People recalled the names of as many animals, birds, foods, or cold foods as they could in IS-min or 30-min sessions. In each task, the rate of item pro- duction decreased with increasing time, and semantically related items were produced in spurts…

We examined the nonveridicality of visual direction produced by monocular viewing. In Experiment 1, 19 subjects pointed to a small light and moved a small light to their subjective median plane. The extent of constant error under monocular and…

Two experiments with 268 paid volunteers investigated the possibility that assessment of confidence is biased by attempts to justify one's chosen answer. These attempts include selectively focusing on evidence supporting the chosen answer and…

A series of experiments studied how people judge the frequency of death from various causes. The judgments exhibited a highly consistent but sys- tematically biased subjective scale of frequency. Two kinds of bias were identi- fied: (a) a tendency…

Three experiments investigated the effects of switching from a nontiming task (addition of rapidly presented digits) to estimation of the duration of short tones or visual stimuli (Experiments 1 and 2), or the production of time intervals…