[throwthere]

As interesting as this is, it's kind of got my spidy-sense tingling. How many non-significant outcomes did test and not publish before seeing traffic accidents? The perfect dose-dependence gives more credence (increasing odds ratio at increasing titers), although the sample size is small.

[Pyramus]

Yes, the dose-response is the interesting bit, and strong indication for causation.

Not an expert so don't know how well we understand the mechanism of action, which is crucial.

[hn_throwaway_99]

The paper states high up that it's been well studied that Toxoplasmosis infection increases reaction time - this study was basically just showing that that laboratory-viewed metric has real-world consequences.

As far as mechanism of action, T. gondii infects both neurons in the brain and glial cells.

[smogcutter]

*decreases reaction time

[nahnahno]

Increases reaction times is right == slows reaction