translation.en: We can turn them down if they are overactive, if they're causing trouble, trouble that is felt throughout the brain, or we can turn them up if they are underperforming, and in so doing, we think that we may be able to help the overall function of the brain.
translation.zh: 如果它们太活跃 引发问题，影响大脑运转，我们可以将它们调低， 如果它们不太活跃，则可调高， 我们认为由此可以帮助 整个大脑的功能。