I doubt very much you will find any journals or studies on this as it is far too early what with all the ridiculous war on drugs still happening, all we are left with is experience reports.
I just did a huge search on shroomery for microdosing yesterday and found majority of people reporting the same thing. This included; increased awareness, visual acuity, emotions, positive energy and enthusiasm. These effects are lited in conjunction with the fact that they were able to engage in everyday life (experientially) to the same degree as they would whilst sober. However there were 50/50 mixed reports on having the best sleep ever and people stopping microdosing because it ruined there slept if done more than two days in a row.
I don't think you wouldn't get much of a good result if you thought of increasing the dose to much more than threshold effects (or at least sub-oev) as it would have a deleterious effect on ones ability to stay with the task at hand (ACC & vmPFC). This is why I only mention microdosing.
I have suffered attention difficulties most of my life and was quite bad ADHD when I was in high school but once maturity set in the Hyper left and I was left with just ADD, lol. Anyway, I think everyone agrees that majority of the time serotonergics give one a a sense of calm or bliss and makes endeavors a lot easier to undertake, the downside is that if go over a certain dosage it pays a cost to ones attention span, getting distracted by childlike imaginings etc.