Children who experience severe early life stress show persistent deficits in many aspects of cognitive and social adaptation. Early stress might be associated with these broad changes in functioning because it impairs general learning mechanisms. To explore this possibility, we examined whether individuals who experienced abusive caregiving in…

Persons with Autism spectrum disorders (ASD) display atypical perceptual processing in visual and auditory tasks. In vision, Bertone, Mottron, Jelenic, and Faubert (2005) found that enhanced and diminished visual processing is linked to the level of neural complexity required to process stimuli, as proposed in the neural complexity hypothesis.…

Recent evidence suggests the existence of multiple cognitive mechanisms that support the general cognitive ability factor (g). Working memory and processing speed are the two best established candidate mechanisms. Relatively little attention has been given to the possibility that associative learning is an additional mechanism contributing to g.…

Recent data suggest recovery of language systems but persistent structural abnormalities in the prematurely born. We tested the hypothesis that subjects who were born prematurely develop alternative networks for processing language. Subjects who were born prematurely (n = 22; 600-1250 g birth weight), without neonatal brain injury on neonatal…

Mentally retarded subjects who could read were tested on their ability to pronounce words and to produce meaningful associates. Analyses of their responses indicated an overuse of a strategy of memorizing words as a way to recognize words in print and an inability to consider word meanings in terms of abstract referents. A comparison of these…

This study was designed to compare both levels of performance and relationships between performances on cognitive tests in groups of children and adolescents in Canada and the Philippines with similar educational experience. A battery of eighteen tests, including the Ravens Progressive Matrices (1958), the Science Research Associates Primary…

Sentences are understood by outlining associative relations between the concepts representing the meanings of the words. When the words are received the activation spreads from their conceptual counterparts to the other concepts in memory, so that some implicit thoughts are often added to the mental representation of a sentence. As sentences are…