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Mental workload is a concept central to a range of disciplines (including cognitive psychology and ergonomics) that has given rise to various theoretical and methodological debates. As a result, researchers have used a number of techniques for measuring mental workload. Traditionally, three categories of measurement technique have been recognized:(More)
Individual differences are a crucial aspect of field studies because of the consequences they can have on performance. However, in Cognitive Ergonomics, individual differences have mainly been interpreted as expertise effects. As can be noted from the literature, this limitation has led to difficulties in explaining differences between experts. Using a case(More)
How professional and novice designers manage multiple objectives through constraint satisfaction was studied. An objective is defined as a network of constraints; a constraint is characterized as related to a source (internal or external) and an addressee (e.g., client or user). It has been shown that designers favour objectives related to external(More)
OBJECTIVE The objective was to characterize multitask resource reallocation strategies when managing subtasks with various assigned values. BACKGROUND When solving a resource conflict in multitasking, Salvucci and Taatgen predict a globally rational strategy will be followed that favors the most urgent subtask and optimizes global performance. However,(More)
This study examined the effects of prior domain knowledge and learning sequences on learning with concept mapping and hypertext. Participants either made a concept map in a first step and then read the hypertext's contents combined with concept mapping (high activating condition), or they read the hypertext's contents first and then made a concept map and(More)
Currently, Air Traffic Control system is facing a period of transition justified by the context which surrounds it (Cegarra, Dehais, Causse & Martin, 2010). Indeed, the level of air traffic is predicted to increase significantly in the next twenty years (Eurocontrol, 2007). The need of technical and organizational solutions definition is therefore drawn to(More)