Acadia University, 18 University Avenue, Wolfville, NS, B4P 2R6, Canada.
McGill University, 3700 McTavish Street, Montreal, QC, H3A 1Y2, Canada.
J Autism Dev Disord. 2018 Dec;48(12):4019-4027. doi: 10.1007/s10803-018-3619-5.
The findings are evidence that persons with ASD benefit more than typically developing (TD) persons from spatial framing cues in focusing their attention on a visual target. Participants were administered a forced-choice task to assess visual filtering. A target stimulus was presented on a screen and flanker stimuli were presented simultaneously with or after the target, with varying stimuli onset asynchronies (SOAs). Regardless of SOA, TD children showed the expected distracting effects with slower reaction times (RTs) when flankers were at closer distances from the target. However, children with ASD displayed shorter RTs in the conditions in which the stimuli were presented simultaneously or with a short SOA. These findings are interpreted as reflecting utilitarian attention among children with ASD.
研究结果表明,与典型发育(TD)个体相比,自闭症谱系障碍(ASD)个体从空间框架线索中受益更多,这些线索有助于将注意力集中在视觉目标上。参与者接受了一项强制选择任务,以评估视觉过滤。目标刺激呈现在屏幕上,同时或在目标之后呈现侧翼刺激,刺激起始异步(SOA)变化。无论 SOA 如何,当侧翼距离目标较近时,TD 儿童的反应时间(RT)较慢,表现出预期的干扰效应。然而,在刺激同时呈现或 SOA 较短的情况下,ASD 儿童的 RT 更短。这些发现被解释为反映了 ASD 儿童的实用注意。