Groupware Task Analysis is a task analysis method that deals with the context of use of a system in the broadest sense. The task world is seen from three viewpoints that deal with different aspects of the world. The processes of GTA and their background are described in detail. In addition a task analysis tool EUTERPE is described. EUTERPE is based on GTA and allows capturing of the task models...

We present a model of absolute autonomy and power in agent systems. This absolute sense of autonomy captures the agent’s liberty over an agent’s preferences. Our model characterizes an affinity between autonomy and power. We argue that agents with similar individual autonomy and power experience an adjusted level of autonomy and power due to being in a group of like agents. We then illustrate o...

Objective: Arterial stiffness is associated with cognitive decline and may serve as an early marker of brain vulnerability. In search of potential early intervention targets, the present study examined the neural correlates of working memory in relation to arterial stiffness in middle-aged, cognitively healthy adults. Methods: Twenty-eight adults, ages 4060 years, completed a 2-Back verbal work...

The present study evaluated the relationship between asymmetry of the prefrontal cortex activity and the automatic nervous system (ANS) response during a mental arithmetic (MA) task. Employing near infrared spectroscopy, we compared cerebral blood oxygenation changes in the right and left prefrontal cortices during a mental arithmetic task with HR changes. During the MA task, eight subjects (hi...

BACKGROUND Impaired dual-task performance significantly impacts upon functional mobility in people with Parkinson's disease (PD). The aim of this study was to identify determinants of dual-task performance in people with PD in three different dual tasks to assess their possible task-dependency. METHODS We recruited 121 home-dwelling patients with PD (mean age 65.93 years; mean disease duratio...

A study of a group of e lementary school students learning to control a computerimplemented Newtonian object reveals a surprisingly uniform and detai led collection of strategies, at the core of which is a robust "Aristotel ian" expectation that things should move in the direction they are last pushed. A protocol of an undergraduate dealing with the same situation shows a large overlap with the...

Theorists have often emphasized the role of analogy in creativity, particular in scientific or intellectual contexts. But in Boden’s model, creative processes are assumed to be mediated by acts of exploration and transformation. There is a need to understand how these two perspectives fit together and to clarify whether analogy is mediated by transformation, exploration, or both of those proces...

Eduardo Rojas is a Senior Urb an Planner with the Inter-American Development Bank, supervising the bank's urban deve lopment portfolio. H e is currently desig ning several urban h eritag e preservation and revitalization loans and technical coop erations. He is task manager f or the Quito Historic Center Rehabilitation Loan granted to Ecuador. His degrees are in architecture, urban planning, an...

This study examines concept mapping as a follow-up study strategy for learning from text. Based on a task analysis of the sub-tasks learners must accomplish during mapping, we developed the following support measures: Participants (N = 102) either generated a map (1) from scratch (map-generation), (2) from a list of concepts (concepts-provided), (3) from spatially arranged concepts (concepts-ar...