youdao

I suppose the shock had addled his poor old brain.

我想这个打击已经使他可怜的老脑筋变糊涂了。

《柯林斯英汉双解大词典》

The old brain makes or at least has input into most of our decisions.

老脑帮我们做决策，或说至少参与了决策。

youdao

"She's With Me" was inspired by his eight-year-old granddaughter Haley, who has a rare degenerative brain disorder.

VOA: standard.2009.08.04

The immediate reaction is the old brain, and the old brain functions in its own traditional, accepted, reactionary, animalistic sense.

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As patients age, genetic mutations or unknown environmental factors may boost the production of deformed proteins, or old brain cells simply may become less able to dispose of debris.

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The old brain is a superb pattern-recognizer.

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