Laterality in temporal processing and spatial attention

第1部分：研究人员最近注意到非常“低水平”的感知不对称。例如，正常的参与者表现出可靠的左半球优势的时间处理任务的视觉，听觉和触觉方式。有越来越多的猜测，这些时间处理不对称的基础半球专门化更高的功能，如语言处理。正在进行的研究将使用侧化时间处理测试在神经学正常和临床参与者组中评估这些声明。这些测试将分为两大类。在第一类中，参与者将完成需要感知快速或快速变化事件的任务，例如双闪光融合，间隙检测，检查时间和共振峰转换的测试。第二类主要检验涉及时间间隔的区分，需要对两个时间间隔的长度作出明确的判断。除了提供对大脑半球专业化的潜在原因和性质的见解外，这项研究还可以为语言障碍患者的临床治疗提供信息。

Part 1: Investigators have recently been noting very `low-level' perceptual asymmetries. For example, normal participants exhibit reliable left hemisphere advantages for temporal processing tasks in the visual, auditory, and tactile modalities. There is increasing speculation that these temporal processing asymmetries underlie hemispheric specialization for higher functions such as language processing. The studies that are being proposed will evaluate these claims in both neurologically normal and clinical participant groups using tests of lateralized temporal processing. The tests will be grouped into two main categories. In the first category, participants will complete tasks that require the perception of rapid or rapidly changing events, such tests of two-flash fusion, gap detection, inspection time, and formant-transitions. The second main category of tests will involve the discrimination of temporal intervals, requiring explicit judgments of the length of two time intervals. In addition to providing insights into potential causes and nature of hemispheric specialisation, the research proposed could also inform clinical treatment of people with language disorders.