Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway.
Neuropsychol Dev Cogn B Aging Neuropsychol Cogn. 2010 Mar;17(2):205-19. doi: 10.1080/13825580903042684. Epub 2009 Jul 24.
The aim of the present study was to examine the association between familiarity of odors, cued and free odor identification performance and cognitive function in elderly adults. It was further investigated how age affects performance on the various odor tasks. A third aim was to investigate the role of familiarity in explaining performance on the free identification task. One hundred and thirty-six participants (aged 45-79 years) with normal olfactory sensitivity were assessed with the Scandinavian Odor Identification Test (SOIT) and standardized tests of cognitive function. Familiarity did not correlate with any measure of cognitive function, while verbal identification performance was associated with several cognitive measures, although correlations were modest. In this sample, free odor identification was affected by increasing age to a marginally larger extent than cued identification performance and familiarity ratings. The results suggest that the different olfactory tasks involve different levels of cognitive processing.
本研究旨在探讨老年人对气味的熟悉程度、线索和自由气味识别表现与认知功能之间的关系。此外，还研究了年龄如何影响各种气味任务的表现。第三个目的是探讨熟悉度在解释自由识别任务表现中的作用。136 名嗅觉正常的参与者（年龄在 45-79 岁）接受了斯堪的纳维亚气味识别测试（SOIT）和认知功能的标准化测试。熟悉度与认知功能的任何测量值都没有相关性，而言语识别表现与几个认知测量值相关，尽管相关性较小。在这个样本中，自由气味识别受年龄的影响比线索识别表现和熟悉度评价要大一些。结果表明，不同的嗅觉任务涉及不同水平的认知处理。
