Prevalence and Characteristics of Interruptions and Distractions During Surgical Counts.

Background: Surgical counting is a complex and safety-critical task that requires sustained attention by multiple members of the surgical team in order to prevent the occurrence of an unintentionally retained foreign object. Interruptions and distractions in the operating room are common and can negatively affect task performance. However, the prevalence and sources of interruptions and distractions during safety-critical tasks, such as surgical counting, have not previously been quantified.

Predictive displays for a process-control schematic interface.

Objective: Our objective was to examine the extent to which increasing precision of predictive (rate of change) information in process control will improve performance on a simulated process-control task.

Background: Predictive displays have been found to be useful in process control (as well as aviation and maritime industries). However, authors of prior research have not examined the extent to which predictive value is increased by increasing predictor resolution, nor has such research tied potential improvements to changes in process control strategy.

Predictors of web navigation performance in a life span sample of adults.

The influence of age, subject matter knowledge, working memory, reading abilities, spatial abilities, and processing speed on Web navigation was assessed in a sample of 41 participants between the ages of 19 and 83 years. Each participant navigated a stand-alone tourism Web site to find answers to 12 questions. Performance was measured using time per trial, number of pages per trial, and number of revisited pages per trial.