Particle size segregation in a two-dimensional bed undergoing vertical vibration.
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Journal Article↗
Biomedical subjects
W Cooke
Publications and source records attributed to W Cooke.
Writing induces a right hemisphere linguistic advantage in dysphonetic dyslexic children: implications for attention and capacity models of laterality.
An experiment demonstrated a complete hemispheric processing reversal in 10 male, dysphonetic dyslexic children that occurred during a dichotic listening test of their verbal working memory. Requiring a written response to dichotic digits produced a right hemisphere/left ear superiority in the dysphonetic dyslexics whereas normal subjects and other dyslexics maintained a left hemisphere/right ear advantage. This reversal was unaffected by changes in task difficulty. A second experiment assessed the influence on producing the reversal of concurrent manual interference with left hemisphere verbal processing (responding orally vs. manually) and selective right hemisphere priming (Forward Writing vs. Backward Writing). The dysphonetic children reverted to a strong left hemisphere superiority when recalling the dichotic digits orally. Backward writing produced no ear advantage in either direction. The findings suggest that dysphonetic dyslexia may be related to (1) left hemisphere processing demands that exceed capacity, (2) easily activated right hemisphere processing strategies and (3) failure to coordinate linguistic processing interhemispherically. The results supported a novel hybrid conceptualization of dyslexia consisting of a synthesis of selective activation, and dual processor-limited capacity, theories.
Attention↗
Understanding and countering racism with first nations children in out-of-home care.
Although First Nations communities in Canada are increasingly taking control of their own child welfare services, their children are still overrepresented in out-of-home care. First Nations children are frequently placed in non-Native environments where they encounter racist attitudes and behaviors. This situation originated in assimilation policies in which governments removed First Nations children from their families, placing them in residential schools, and later, in non-Native foster or adoptive homes. This article suggests ways for social workers and foster carers to combat racism, both individually and by supporting the initiatives of First Nations people to regain control of their own children.
Acculturation↗