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Direct linkDe Joux, Neil; Russell, Paul N.; Helton, William S. – Brain and Cognition, 2013
Despite a long history of vigilance research, the role of global and local feature discrimination in vigilance tasks has been relatively neglected. In this experiment participants performed a sustained attention task requiring either global or local shape stimuli discrimination. Reaction time to local feature discriminations was characterized by a…
Descriptors: Spectroscopy, Research Methodology, Reaction Time, Task Analysis
Gogtay, Nitin; Thompson, Paul M. – Brain and Cognition, 2010
Recent studies with brain magnetic resonance imaging (MRI) have scanned large numbers of children and adolescents repeatedly over time, as their brains develop, tracking volumetric changes in gray and white matter in remarkable detail. Focusing on gray matter changes specifically, here we explain how earlier studies using lobar volumes of specific…
Descriptors: Siblings, Schizophrenia, Psychopathology, Brain Hemisphere Functions
Alfano, Keith M.; Cimino, Cynthia R. – Brain and Cognition, 2008
The relative advantage of the left (LH) over the right hemisphere (RH) in processing of verbal material for most individuals is well established. Nevertheless, several studies have reported the ability of positively and negatively valenced stimuli to enhance and reverse, respectively, the usual LH greater than RH asymmetry. These studies, however,…
Descriptors: Brain Hemisphere Functions, Verbal Stimuli, Arousal Patterns, Emotional Response
