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感知负载和干扰器的感知分组对ASD视觉搜索的影响
Wenyi Shen1, Yijie Huang2, Lin Zhang1,3
1Department of Psychology and Center for Brain and Cognitive Sciences, School of Education, Guangzhou University, Guangzhou 510006, China.
自闭症谱系障碍 (ASD) 患者的视觉搜索速度较慢. 干扰器分组有助于搜索效率,特别是在低感知负载下,但在高负载下与典型发育个体相比,在ASD中效率较低.
科学领域:
- 认知心理学 认知心理学
- 神经发育障碍 神经发育障碍
背景情况:
- 患有自闭症谱系障碍 (ASD) 的人通常在视觉处理方面表现出差异.
- 了解ASD的视觉搜索机制对于开发有针对性的干预措施至关重要.
研究的目的:
- 为了研究与典型发展 (TD) 对照者相比,ASD个体的视觉搜索性能.
- 检查分心分组和感知负载对ASD视觉搜索效率的影响.
主要方法:
- 具有ASD和TD控制器的参与者执行了视觉搜索任务,目标大小,分心器配置和感知负载各不相同.
- 记录了响应时间和准确性,以评估搜索速度和效率.
主要成果:
- ASD组的总体搜索速度比TD组慢.
- 干扰器分组在两组中都提高了搜索效率,在大小不一致的条件下,更快的响应表明了这一点.
- 与TD组相比,在高感知负载下ASD组中,分心器分组的积极影响较小.
- ASD参与者在低负载下更快地检测小目标,而在高负载下更快地检测大目标时,TD参与者更快.
结论:
- 虽然ASD不会赋予视觉搜索优势,但优化分心器分组可以提高搜索速度.
- 干扰器分组的有效性取决于负载,在高负载下在ASD中效率较低,符合弱中心连贯理论.
- ASD表现出负载影响的大小不对称性,其中分心器分组有助于低负载检测,并抑制高负载下分心器处理.
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