It would be interesting if they had studied norepinephrine and seretonin levels too. Could it be that the group with chronic adversity simply were less aroused

It would be interesting if they had studied norepinephrine and seretonin levels too. Could it be that the group with chronic adversity simply were less aroused overall with the stress of the arithmetic challenges? Also, did task performance differ between the two groups? Agree that the connection between adversity and dopamine production isn't so clear in this paper.