Electrophysiological investigation of dual-task interference

双任务干扰的电生理研究

• 批准号: 402614-2011
• 负责人: Brisson, Benoit
• 金额: $ 2.11万
• 依托单位: Université du Québec à Trois-Rivières
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=573338
• 关键词: Electrophysiological; investigation; dual; task; interference

Understanding multitasking limitations in normal human information processing is a key topic in psychology and the neurosciences. It not only helps us define what we, as human beings, can and cannot do at one time, but it also opens a fascinating window into the functional architecture of our cognitive system. Two simple paradigms have been widely used to study dual-task performance in the laboratory: the psychological refractory period paradigm and the attentional blink paradigm. The work conducted within this program of research will take advantage of powerful electrophysiological techniques recently developed to study multitasking interference in order to investigate thoroughly dual-task limitations within these two paradigms. Contrary to what was claimed by prevalent theories of dual-task interference, it has recently been discovered, using the event-related potential technique in combination with the psychological refractory period, that a first speeded auditory task interfers with early perceptual processing of a subsequent visual target. We will examine whether this early interference arises because of central capacity limitations, spatial shifts, sensory modality switching, or task switching. We will also use a similar approach to study whether several processes, such as emotional processing and error detection, require central attention resources. Whereas central capacity limitations are at the core of most extent theories of psychological refractory dual-task interference, its role in the attentional blink phenomenon is still under debate. Within the program, we will also investigate the role of central capacity limitations, distractor interference and misselection in the attentional blink. This research will provide valuable information for the development of a global model of dual-task performance that will help conceive better adapted human-machine interfaces and technologies which, in turn, will facilitate processing of the relevant information contained in our often overwhelming environment.

了解正常人类信息处理中的多任务限制是心理学和神经科学的一个关键话题。它不仅帮助我们定义我们作为人类，在同一时间能做什么和不能做什么，而且还为我们的认知系统的功能架构打开了一扇迷人的窗户。两种简单的实验范式被广泛应用于双任务绩效的研究：心理不应期范式和注意瞬脱范式。在这项研究计划中进行的工作将利用最近开发的强大的电生理技术来研究多任务干扰，以彻底调查这两种范式中的双任务限制。 与流行的双任务干扰理论所声称的相反，最近使用事件相关电位技术结合心理不应期发现，第一加速听觉任务干扰随后视觉目标的早期知觉处理。我们将研究这种早期干扰是否是由于中枢容量限制、空间转移、感觉模态转换或任务转换而产生的。我们还将使用类似的方法来研究几个过程，如情绪处理和错误检测，是否需要中央注意力资源。 虽然中心容量限制是心理难治性双任务干扰理论的核心，但其在注意瞬脱现象中的作用仍存在争议。在该计划中，我们还将调查中央容量限制，干扰物干扰和错误选择在注意瞬脱中的作用。 这项研究将提供有价值的信息，为开发一个全球模型的双任务性能，这将有助于构思更好地适应人机界面和技术，这反过来又将促进处理的相关信息包含在我们往往压倒性的环境。