Olofsson Jonas K, Gottfried Jay A
Department of Psychology, Stockholm University, SE-10691 Stockholm, Sweden; Swedish Collegium for Advanced Study, SE-75238 Uppsala, Sweden.
Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
Trends Cogn Sci. 2015 Jun;19(6):314-21. doi: 10.1016/j.tics.2015.04.007. Epub 2015 May 12.
Most people find it profoundly difficult to name familiar smells. This difficulty persists even when perceptual odor processing and visual object naming are unimpaired, implying deficient sensory-specific interactions with the language system. Here we synthesize recent behavioral and neuroimaging data to develop a biologically informed framework for olfactory lexical processing in the human brain. Our central premise is that the difficulty in naming common objects through olfactory (compared with visual) stimulation is the end result of cumulative effects occurring at three successive stages of the olfactory language pathway: object perception, lexical-semantic integration, and verbalization. Understanding the neurocognitive mechanisms by which the language network interacts with olfaction can yield unique insights into the elusive nature of olfactory naming.
大多数人发现很难说出熟悉的气味。即使嗅觉感知处理和视觉物体命名未受损，这种困难依然存在，这意味着与语言系统的特定感觉交互存在缺陷。在这里，我们综合了最近的行为和神经成像数据，以建立一个关于人类大脑嗅觉词汇处理的基于生物学的框架。我们的核心前提是，通过嗅觉（与视觉相比）刺激来命名常见物体的困难是嗅觉语言通路三个连续阶段累积效应的最终结果：物体感知、词汇语义整合和言语表达。理解语言网络与嗅觉相互作用的神经认知机制，可以为嗅觉命名难以捉摸的本质提供独特的见解。
