Institute for Human Neuroscience, Boys Town National Research Hospital, Omaha, NE, USA; Creighton University School of Medicine, Omaha, NE, USA.
Institute for Human Neuroscience, Boys Town National Research Hospital, Omaha, NE, USA.
Conscious Cogn. 2022 Nov;106:103429. doi: 10.1016/j.concog.2022.103429. Epub 2022 Oct 25.
Human visual processing involves the extraction of both global and local information from a visual stimulus. Such processing may be related to cognitive abilities, which is likely going to change over time as we age. We aimed to investigate the impact of healthy aging on the association between visual global vs local processing and intelligence. In this context, we collected behavioral data during a visual search task in 103 adults (50 younger/53 older). We extracted three metrics reflecting global advantage (faster global than local processing), and visual interference in detecting either local or global features (based on interfering visual distractors). We found that older, but not younger, adults with higher levels of fluid and crystallized intelligence showed stronger signs of global advantage and interference effects during local processing, respectively. The present findings also provide promising clues regarding how participants consider and process their visual world in healthy aging.
人类视觉处理涉及从视觉刺激中提取全局和局部信息。这种处理可能与认知能力有关，而认知能力随着年龄的增长而变化。我们旨在研究健康衰老对视觉全局与局部处理与智力之间关联的影响。在这种情况下，我们在 103 名成年人（50 名年轻/53 名年长）的视觉搜索任务中收集了行为数据。我们提取了三个反映全局优势的指标（全局处理快于局部处理），以及在检测局部或全局特征时视觉干扰的指标（基于干扰的视觉分心物）。我们发现，流体智力和晶体智力较高的老年人，而不是年轻人，在进行局部处理时表现出更强的全局优势和干扰效应的迹象。这些发现还为参与者在健康衰老过程中如何考虑和处理他们的视觉世界提供了有希望的线索。
