Two experiments were conducted to examine how time-ontask (i.e., practice and fatigue) influences eye movements during visual search. In Experiment 1, we examined how practice influences eye movements during an extended visual search task. Results replicate the findings that over the course of a visual search task, performance improves and fixation duration increases. Yet changes in fixation du...

Individual differences in fixation duration are considered a reliable measure of attentional control in adults. However, the degree to which individual differences in fixation duration in infancy (0-12 months) relate to temperament and behavior in childhood is largely unknown. In the present study, data were examined from 120 infants (mean age = 7.69 months, SD = 1.90) who previously participat...

Participants’ eye movements were monitored in two visual search experiments that manipulated target-distractor similarity (high vs. low) as well as the availability of distractors for extrafoveal processing (Free-Viewing vs. No-Preview). The influence of the target-distractor similarity by preview manipulation on the distributions of first fixation and second fixation duration was examined by u...

  Abstract   Background: Pseudoarthrosis of the tibia poses one of the most challenging treatment   problems in all of orthopedics. The goal of the study was to assess the clinical   outcome of intramedullary rod fixation in its treatment.   Methods: The results of the management for nine patients with pseudoarthrosis of   the tibia with IM rod fixation were reviewed retrospectively between 198...

Although eye movements during reading are modulated by cognitive processing demands, they also reflect visual sampling of the input, and possibly preparation of output for speech or the inner voice. By simultaneously recording eye movements and the voice during reading aloud, we obtained an output measure that constrains the length of time spent on cognitive processing. Here we investigate the ...

Abstract Research on eye-movement control during natural scene viewing has investigated the degree to which duration of individual fixations can be immediately adjusted ongoing visual-cognitive processing demands. Results from several studies using fixation-contingent quality paradigm suggest that timing adapts stimulus changes occur a fixation-to-fixation basis. Analysis fixation-duration dist...

Using a serial search paradigm, we observed several effects of within-object fixation position on spatial and temporal control of eye movements: the preferred viewing location, launch site effect, the optimal viewing position, and the inverted optimal viewing position of fixation duration. While these effects were first identified by eye-movement studies in reading, our approach permits an anal...

Background: Gaze behavior differences between expert and novice surgeons have been established in general surgery literature. Limited information is available about surgeon’s visual attention during microsurgery procedures where surgical microscope used. Methods: 4 experts 3 novices performed 37 independent sutures under the microscope. Eye movements of scene video performance were recorded. To...