This report has been taken a little out of context. In mice, a lot of things can be shown to stimulate neurogenesis.

Environmental novelty is even know to be correlated with neurogenesis markers in mice, which is a confounding factor when trying to determine if novel mind-altering substances are producing neurogenesis through some novel mechanism, or the mere experience of shaking up their world with drugs is just another novel experience.

That said, this is a good example of a case where we have a lot of research suggesting that mouse neurogenesis studies don’t translate well to humans. See the other well-written comment above as well as the associated article for more on the topic.

Unfortunately “mushrooms cause neurogenesis” has been taken as a given by a lot of mushroom enthusiasts, podcasters, and new age fitness guru types.

I missed “neurogenesis”. Most effects appears to be subtle changes in architecture of neurons.