The "default mode network" is commonly described as a set of brain regions in which activity is suppressed during relatively demanding, or difficult, tasks. But what sort of tasks are these? We review some of the contrasting ways in which a task might be assessed as being difficult, such as error rate, response time, propensity to interfere with performance of other tasks, and requirement for t...

This paper reports our investigation of differences in users’ behavior between difficult and easy search tasks, as well as how these differences vary with different types of tasks. We also report how behavioral predictors of task difficulty vary across task types. In addition, we explored how whole-tasksession level user behaviors and within-task-session level behaviors differ in task difficult...

This study investigated students’ oral performance ability accounting for various oral analytical factors including fluency, lexical and structural complexity and accuracy with each subcategory. Accordingly, 20 raters scored the oral performances produced by 200 students and a quantitative design using a MANOVA test was used to investigate students’ score differences of various levels of langua...

objective: the present study was aimed to correlate the clinical tests with the laboratory measures under dual task conditions in parkinson's disease (pd). materials and methods: eleven people with idiopathic pd (modified hoehn and yahr scores 1-3) were selected by simple non-probability sampling. center of pressure (cop) data obtained by force platform was used to calculate mean total velocity...

As this paper was a very close version of “Investigating task difficulty: learners’ and teachers’ perceptions” by Dr. Parvaneh Tavakoli (published in “International Journal of Applied Linguistics”, Vol. 19, No. 1) in terms of content, research design, analytic framework and research findings without appropriately referencing resources used or obtaining author's consent, the paper wa...

the purpose of present study was to determine the effect of different levels of balance task difficulty and visual feedback on balance in elderly women. fourteen healthy elderly women (mean age 57/65 yr) were selected voluntarily. participants were asked to stand still on a stability platform under each of two conditions (with visual feedback and without visual feedback) in three levels of diff...