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• W2955887311 abstract "Fetal alcohol spectrum disorder (FASD) refers to a spectrum of effects resulting from prenatal exposure to alcohol (PEA). Attention problems are considered common among children with PEA. In this study, a specific aspect of visual attending, filtering, was examined among children with FASD with both an experimental flanker task and clinical subtests. On the flanker task, the participants responded to centrally presented arrows while ignoring distracter arrows that sometimes appeared to the left and right of the target. These distracters were either congruent or incongruent with the target. The attentional demands of the task were manipulated in this study, as an increase in attentional demand decreased developmental differences in filtering efficiency in previous studies. Immature cognitive control, as a potential explanation for inefficient filtering, was also explored among children with FASD. The methodological issues of differing levels of prenatal alcohol exposure and lower developmental level were considered. The 14 children with FASD were diagnosed with an alcohol-related disorder based on the Canadian Diagnostic Guidelines (Chudley et al., 2005), and matched on mental age, as assessed with the Leiter International Performance Scale – Revised, with typically developing (TD) children. The group of children with FASD displayed behavioural symptoms of attention-deficit hyperactivity disorder, but did not demonstrate visual filtering difficulties in general. The findings suggest that difficulties in filtering may be evident for children with FASD later in development. An increase in both the attentional demands of the task and the flanker distance appeared to be helpful. The children with FASD demonstrated difficulties with cognitive control, specifically with attention switching and working memory. They demonstrated a larger increase in reaction time (RT) to target-only displays when they were presented within a block of trials with flanker and no-flanker displays. The RT to these target-only displays was similar to the RT to incongruent distracter displays. These findings support cognitive control deficits. The possibility that unexpected visual displays are particularly disruptive for children with FASD is also discussed.%%%%L'ensemble des troubles causes par l'alcoolisation foetale (ETCAF) fait reference a un eventail d'effets resultant de l'exposition prenatale a l'alcool (EPA). Les problemes d'attention sont consideres communs chez les enfants avec une EPA. Dans cette etude, le filtrage visuel a ete examine chez les enfants atteints de l'ETCAF avec une tâche experimentale concue pour mesurer l'efficacite de filtrage et des sous-tests cliniques. A la tâche experimentale, les participants ont repondu aux fleches presentees de maniere centralisee tout en ignorant les stimuli de distraction (SD) apparaissant parfois a gauche ou a droite de la cible. Ces SD etaient conciliables ou inconciliables avec la cible. Les exigences attentionnelles de la tâche ont ete manipulees dans cette etude, car…" @default.
• W2955887311 created "2019-07-12" @default.
• W2955887311 creator A5041155270 @default.
• W2955887311 date "2011-01-01" @default.
• W2955887311 modified "2023-09-27" @default.
• W2955887311 title "Visual filtering in children with fetal alcohol spectrum disorder" @default.
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