Marc M. Sebrechts

Learn More
Although there have been many prototypes of visualization in support of information retrieval, there has been little systematic evaluation that distinguishes the benefits of the visualization per se from that of various accompanying features. The current study focuses on such an evaluation of NIRVE, a tool that supports visualization of search results.(More)
An eye-tracking study of face and object recognition was conducted to clarify the character of face gaze in autistic spectrum disorders. Experimental participants were a group of individuals diagnosed with Asperger's disorder or high-functioning autistic disorder according to their medical records and confirmed by the Autism Diagnostic Interview-Revised(More)
Autistic spectrum disorder (ASD) is diagnosed on the basis of impairment in reciprocal social interaction and language, and rigidity of behavior. This brief paper describes the development of an experimental intervention for preschool children newly diagnosed with ASD. The rationale for this intervention is the hypothesis that failure to attend to social(More)
This paper documents the engineering of a gaze contingent therapeutic environment for the exploration and validation of a proposed rehabilitative technique addressing attention deficits in 24 to 54 months old autistic subjects. It discusses the current state of progress and lessons learnt so far while highlighting the outstanding engineering challenges of(More)
Utilizing a double-blind, drug-placebo design, we examined growth hormone (GH) and prolactin (Pro) response to oral administration of methylphenidate (MPH) in 14 boys (ages 7.0-12.4 years) with Attention Deficit Disorder (ADD). Four conditions representing three different MPH doses (0.3 mg/kg O.D., 0.3 mg/kg B.I.D., 0.6 mg/kg O.D.) and Placebo were compared(More)
Two experiments examined the utility of a menu-based question-construction help system as part of basic instruction for UNIX. The first experiment indicated that novice or naive users have great difficulty formulating their own questions; a menu-based interface that helps structure questions increased question asking and improved performance during(More)
Have you ever had difficulty adjusting your refrigerator temperature, setting your VCR program, or transferring a call to another extension? The source of these difficulties is often a failed mapping between the designers' and the users' models of a system (Norman, 1988); in brief, user's have flawed mental models (or devices have flawed designs). This(More)