Task performance & subjective rating don't change between the two groups.
The measurements are crude.
There's a lot of degrees of freedom in this study. Useful for others in the field, but a popular writeup deserves to go in the bin
I think it was B.F. Skinner who wrote that it’s a fool’s errand to try to pin behavior down in some physical or chemical matter in the brain. But I can’t seem to remember the quote... must be the glutamate.
Snark aside, I think while it's important to understand the chemical foundation for how certain brain processes or phenomena manifest, simplifying research results to news pieces like "chemical X is why you feel bad" is very evocative of the pre-modern "humors" approach to human health. Blood pressure too high? Just drain some blood.
Color me skeptical.
I'm not sure what computer this is but I'm pretty sure it's not using megawatts just to do some facial recognition (maybe she was fatigued by the time she got to the end of writing the article?).
8%, 10% differences.
Replicate this with N=1000, it might be worth talking about.