Objective: Task-related EEG is sensitive to changes in cognitive state produced by increased task dif®culty and by transient impairment. If task-related EEG has high test±retest reliability, it could be used as part of a clinical test to assess changes in cognitive function. The aim of this study was to determine the reliability of the EEG recorded during the performance of a working memory (WM...

In task switching experiments participants have to respond to the same set of stimuli while task instructions vary (e.g., digit stimuli are assigned to left- or right-sided key presses by means of magnitude vs. parity classification). Response congruency effects denote worse performance for a stimulus, which is associated with different responses in the two tasks as compared to a stimulus, whic...

The application of artificial intelligence (AI) to real-time strategy (RTS) games includes considerable challenges due to the very large state spaces and branching factors, limited decision times, and dynamic adversarial environments involved. To address these challenges, hierarchical task network (HTN) planning has been extended to develop a method denoted as adversarial HTN (AHTN), and this m...

0747-5632/$ see front matter 2012 Elsevier Ltd. A doi:10.1016/j.chb.2012.01.012 ⇑ Corresponding author. Address: Department of P Carolina State University, Raleigh, NC 27695, USA. E-mail address: [email protected] (A.C. The effectiveness of a game-based cognitive training intervention on multiple abilities was assessed in a sample of 39 older adults aged 60–77. The intervention task was ...

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Two experiments examined the effects of interactive tutorial features (compared to “passive” features) on learning spatial tasks, an area seldom explored in interactivity research. Experiment 1 results indicated that for simple spatial tasks, interactive tutorials hindered learning for participants of higher spatial ability but improved learning for lower-ability participants. This interaction ...

In this paper, the possibilities of using visual and textual information are investigated to improve the ranking of photos from Flickr about famous places. We have elaborated improved textual features based on standard ones and visual features e.g. face feature for measure the relative face area on the images. These heuristic features have been used for the solution in the MediaEval 2013 Retrie...

This experimental study examined the relationship between pretend play and false-belief. Eighteen-month-old children engaged in pretend play with an experimenter using various controlled behaviors and performed a false-belief task. The results showed that the children who understood pretend play performed better on the false-belief task. This suggests that pretended play and false-belief are re...

This paper describes the third participation of IR-n system at CLEF-2003. Two previous participation are focused on Spanish monolingual task. This year, we participated in three different tasks: multilingual task (four languages), bilingual task (Italian-Spanish) and monolingual task (Spanish, German, French, Italian). This paper describes the experiments carried out as training process in orde...

This paper examines a new approach to making the evaluation of personal search systems more feasible. Comparability and diverse coverage of personal search tasks are two main issues in evaluating these systems. To address these issues, the proposed approach relies on identifying the differences between search tasks. An experiment was conducted to measure user perceptions of such differences acr...