Previous studies investigating mild cognitive impairment (MCI) have focused primarily on cognitive, memory, attention, and executive function deficits. There has been relatively little research on the perceptual deficits people with MCI may exhibit. This is surprising given that it has been suggested that sensory and cognitive functions share a common cortical framework [1]. In the following st...

Recently, Walters ("Dementia: Continuum or distinct entity?", Psychology and Aging, 2010, 25, 534-544) published a taxometric study suggesting a dimensional latent structure for the construct of dementia. However, because that study did not conceptualize dementia according to accepted conventions (i.e., there were no measures of cognitive change or independent functioning), its results may repr...

To build a data-integration system, the application designer must specify a mediated schema and supply the descriptions of data sources. A source description contains a source schema that describes the content of the source, and a mapping between the corresponding elements of the source schema and the mediated schema. Manually constructing these mappings is both laborintensive and error-prone, ...

To build a data-integration system, the application designer must specify a mediated schema and supply the descriptions of data sources. A source description contains a source schema that describes the content of the source, and a mapping between the corresponding elements of the source schema and the mediated schema. Manually constructing these mappings is both laborintensive and error-prone, ...

Creating semantic matches between disparate data sources is fundamental to numerous data sharing efforts. Manually creating matches is extremely tedious and error-prone. Hence many recent works have focused on automating the matching process. To date, however, virtually all of these works deal only with one-to-one (1-1) matches, such as address = location. They do not consider the important cla...

2 Abstract A methodology is described for using fMRI brain imaging to study how students learn with an intelligent tutoring system. Students were imaged while learning an algebra isomorph. A cognitive model, which is capable of learning the material, identified 6 predefined brain regions as reflecting various aspects of the problem-solving and learning process. The model predicted that the lear...

Selective exposure research indicates that news consumers tend to seek out attitudeconsistent information and avoid attitude-challenging information. This study examines online news credibility and cognitive dissonance as theoretical explanations for partisan selective exposure behavior. After viewing an attitudinally consistent, challenging, or politically balanced online news source, cognitiv...