很多这类因素都被认为与幻觉产生有部分联系，因为它们影响了身体对精神压力的反应。

Many such factors are thought to be linked to hallucinations in part because of their impact on the body's reaction to stress.

youdao

所有这些船员们都讲有幻觉产生，有害怕的想法和他们的思想不能够处理应付的未知的不能用语言表达的惊骇。

The ramblings that all these crew members have related are hallucinations, thoughts of fear and of unknown indescribable horrors with which their minds cannot possibly cope.

youdao

高烧可使人产生幻觉。

High temperatures can cause hallucination.

《牛津词典》

Maybe it's illusion in some thoughts.

它可能只是产生于某些思想的幻觉。

普林斯顿公开课 - 人性课程节选

So, it's motivated by a huge blindness about the racial history of the United States in any of its detail. That sense of the oneness, I think, points to why and how he makes that illusion, the oneness.

所以这是由对美国种族历史,及其细节部分的极大无知所推动的，这样的一种同一性，我想表明了他为什么及怎样产生了那一幻觉，那种同一性。

耶鲁公开课 - 1945年后的美国小说课程节选