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Suegami, Takashi; Laeng, Bruno – Brain and Cognition, 2013
It has been shown that the left and right cerebral hemispheres (LH and RH) respectively process qualitative or "categorical" spatial relations and metric or "coordinate" spatial relations. However, categorical spatial information could be thought as divided into two types: semantically-coded and visuospatially-coded categorical information. We…
Descriptors: Spatial Ability, Semantics, Stimuli, Brain Hemisphere Functions
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Clifford, Alexandra; Franklin, Anna; Holmes, Amanda; Drivonikou, Vicky G.; Ozgen, Emre; Davies, Ian R. L. – Brain and Cognition, 2012
Category training can induce category effects, whereby color discrimination of stimuli spanning a newly learned category boundary is enhanced relative to equivalently spaced stimuli from within the newly learned category (e.g., categorical perception). However, the underlying mechanisms of these acquired category effects are not fully understood.…
Descriptors: Control Groups, Stimuli, Classification, Correlation
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Clifford, Alexandra; Franklin, Anna; Davies, Ian R. L.; Holmes, Amanda – Brain and Cognition, 2009
The origin of color categories has been debated by psychologists, linguists and cognitive scientists for many decades. Here, we present the first electrophysiological evidence for categorical responding to color before color terms are acquired. Event-related potentials were recorded on a visual oddball task in 7-month old infants. Infants were…
Descriptors: Stimuli, Psychologists, Infants, Cognitive Processes
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Laws, Keith R.; Hunter, Maria Z. – Brain and Cognition, 2006
Studies of neurological patients with category-specific agnosia have provided important contributions to our understanding of object recognition, although the meaning of such disorders is still hotly debated. One crucial line of research for our understanding of category effects, is through the examination of category biases in healthy normal…
Descriptors: Patients, Neurological Impairments, Recognition (Psychology), Spatial Ability