什么是阈值，阈值受什么影响

Word of the Day：August 22, 2021

liminal

阈值；阈限

adjective LIM-uh-nul

wd20210822.mp31:51来自E语Tong

What It Means

Liminal is used to describe something that is barely perceptible or that involves a transitional or in-between state.

阈值用于描述几乎不可察觉或涉及过渡或中间状态的事物。

Examples

The essay presents an image of the border region as a liminal zone where one culture blends into another.

这篇文章将边境地区的形象描绘成一种文化与另一种文化相融合的边界地带。

"In the vast but liminal space of the ocean, cargo vessels—some of the largest machines on the planet—have generally operated in obscurity." — Aurora Almendral, The New York Times, 27 June 2021

在广阔但有限的海洋空间中，货船——地球上一大型的机器——通常在默默无声下运行者。”

"This new body of work glows with a more subtle light. [Rick Worth] captures a particular summer kind of Key West glow, the liminal luminosity of streetlights on the poincianas or the dappled glow of sea grapes of Fort Zach." — The Key West (Florida) Citizen, 30 June 2021

“这个新作品散发出更微妙的光芒。[Rick Worth] 捕捉夏季一特殊的基韦斯特光亮，凤凰林微弱的灯光或扎克堡海斑驳的光点。”

Did You Know?

When liminal first appeared in written use, it referred to something (such as a physical stimulus) which was just barely perceptible, or just barely capable of eliciting a response. This meaning is still in use today in constructions like "liminal auditory stimuli." The word comes from the noun limen, which refers to the point at which a physiological or psychological effect begins to be produced. In its most common extended meaning now, it describes a state, place, or condition of transition, as in “the liminal zone between sleep and wakefulness.” The closely related word subliminal means “below a threshold”; it can describe something inadequate to produce a sensation or something operating below a threshold of consciousness.

当 liminal 首次出现在书面时，它指的是几乎无法察觉或几乎无法引起反应的事物（例如物理刺激）。 这个含义今天仍在使用，如“liminal auditory stimuli「阈限听觉刺激」”。 这个词来自名词 limen，指的是生理影响或心理效应开始产生的点。 在现在最常见的扩展含义中，它描述了一种状态、地点或过渡条件，如“the liminal zone between sleep and wakefulness「睡眠和清醒之间的界限」”。 与之密切相关的词 subliminal 的意思是“below a threshold「低于阈值」”； 它可以描述不足以产生感觉的东西或低于意识阈值的东西。·

Quiz

What type of food brings on an "umami「鲜味」" sensation?