Oscillatory and Event-Related Neural Activity During Visual Perception and Short-Term Memory Across the Lifespan

整个生命周期中视觉感知和短期记忆期间的振荡和事件相关的神经活动

• 批准号: 458707-2014
• 负责人: Emrich, Stephen
• 金额: $ 4.53万
• 依托单位: Brock University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=542009
• 关键词: Oscillatory; Event; Related; Neural; Activity

This proposal requests funds to purchase an electroencephalography (EEG) system to study the nature of visual short-term memory (VSTM) and perception across the lifespan (i.e., childhood, adulthood, older adulthood). Visual short-term memory has been linked to a number of everyday behaviours, from finding objects at the grocery store (visual search) to completing complex tasks (fluid intelligence). Not enough is known, however, about the neural mechanisms that support VSTM, or how these mechanisms change across the life span, e.g., as the brain develops in childhood, or as individuals start to age. Some of the experiments proposed here will investigate this question. In addition, there is evidence that face perception changes across the lifespan, and that way information about faces is perceived reflects similar underlying processes to those involved in simple visual memory tasks. Thus, some of the experiments proposed here will look at the nature of face perception across the lifespan, by recording brain activity while participants perform perceptual and memory tasks involving faces.

该提案要求资金购买脑电图（EEG）系统来研究视觉短期记忆（VSTM）的本质和整个生命周期（即童年，成年，老年）的感知。视觉短期记忆与许多日常行为有关，从在杂货店寻找物品（视觉搜索）到完成复杂任务（流体智力）。然而，对于支持VSTM的神经机制，或者这些机制在整个生命周期中如何变化，例如，随着大脑在儿童时期的发育，或者随着个体开始衰老，我们所知的还不够。这里提出的一些实验将研究这个问题。此外，有证据表明，人脸感知在人的一生中会发生变化，而感知人脸信息的方式反映了与简单视觉记忆任务相似的潜在过程。因此，这里提出的一些实验将通过记录参与者在执行涉及面部的感知和记忆任务时的大脑活动，来观察整个生命周期中面部感知的本质。