Wallace Mark T, Stevenson Ryan A
Vanderbilt Brain Institute, Vanderbilt University, 465 21st Avenue South, Nashville, TN 37232, USA; Department of Hearing & Speech Sciences, Vanderbilt University, Nashville, TN, USA; Department of Psychology, Vanderbilt University, Nashville, TN, USA; Department of Psychiatry, Vanderbilt University, Nashville, TN, USA.
Department of Psychology, University of Toronto, Toronto, ON, Canada.
Neuropsychologia. 2014 Nov;64:105-23. doi: 10.1016/j.neuropsychologia.2014.08.005. Epub 2014 Aug 13.
Behavior, perception and cognition are strongly shaped by the synthesis of information across the different sensory modalities. Such multisensory integration often results in performance and perceptual benefits that reflect the additional information conferred by having cues from multiple senses providing redundant or complementary information. The spatial and temporal relationships of these cues provide powerful statistical information about how these cues should be integrated or "bound" in order to create a unified perceptual representation. Much recent work has examined the temporal factors that are integral in multisensory processing, with many focused on the construct of the multisensory temporal binding window - the epoch of time within which stimuli from different modalities is likely to be integrated and perceptually bound. Emerging evidence suggests that this temporal window is altered in a series of neurodevelopmental disorders, including autism, dyslexia and schizophrenia. In addition to their role in sensory processing, these deficits in multisensory temporal function may play an important role in the perceptual and cognitive weaknesses that characterize these clinical disorders. Within this context, focus on improving the acuity of multisensory temporal function may have important implications for the amelioration of the "higher-order" deficits that serve as the defining features of these disorders.
行为、感知和认知在很大程度上受到跨不同感觉模态的信息整合的影响。这种多感觉整合通常会带来表现和感知上的益处,这些益处反映了来自多种感觉的线索提供冗余或互补信息时所赋予的额外信息。这些线索的空间和时间关系提供了关于如何整合或“绑定”这些线索以创建统一感知表征的强大统计信息。最近的许多研究都考察了多感觉处理中不可或缺的时间因素,其中许多研究聚焦于多感觉时间绑定窗口这一概念——在这个时间段内,来自不同模态的刺激可能会被整合并在感知上绑定。新出现的证据表明,在一系列神经发育障碍中,包括自闭症、诵读困难症和精神分裂症,这个时间窗口会发生改变。除了在感觉处理中的作用外,这些多感觉时间功能的缺陷可能在这些临床疾病所特有的感知和认知弱点中起重要作用。在此背景下,专注于提高多感觉时间功能的敏锐度可能对改善作为这些疾病定义特征的“高阶”缺陷具有重要意义。