Yes it can be possible but not being overpowered. Sometimes it can be a coincidence or just a change. But yes it can be possible that someone's personality can change during a full moon(like me). If your talking about transformation then no because personality can also mean your body...
A lot of people who work with the moons energies will/can be effected by a full moon, in a positive way usually. As for it being overpowering I do believe some people might see it that way but more in a "I have so much I want to do/accomplish!" I know on full moons I usually get busy cleaning and such because I feel more energized in a way.
The full moon can definitely effect you. We are approx 70% water after all. Most police officers will tell you they are a lot busier on a full moon, so I guess it is possible to be negatively effected by it.
As far as your 'it makes me black out' comment goes, I can assure you that has absolutely nothing to do with the full moon and if you are indeed blacking out you need to see a doctor.
I believe it does, yes. There is no solid evidence i.e. objective evidence, but subjective and observationa;' most certainly. The moon at it's full is reflecting more and more of the suns energy on to earth. Astrologically this can be seen as more and more of our repressed behaviours, thoughts, and feelings which normally dwel in the unconsciuos mind coming to light in the conscious and thus being played out.
This is also an explanation as to why police officers are busier. Nurses and doctors tend to be more busy around a full moon. Another iteresting link is the etymology of the word 'lunatic'- it stems from the belief that the moon could cause temporary insanity.
I believe it does, a full moon effects my cat, she's usually unactive/nicer when it isn't a full moon, but when it is, she will attack me and my family, she's more hyper and active. So I would believe the same applies to humans, more so than others.
It affects me in a negative way, I always feel a bit down and overly emotional when the moon is full! I didn't link it until I started researching the moon phases and then noticed the pattern. Now I understand it though so its easier to deal with as I know it will pass quickly!
In Moon Astrology it says the moon rules your personailty and repersents our emotions,feelings and how we feel about ourselves. Down below is a link I go to and see the moon astrology signs that depends if you're born male or female it's different aspects for each side and also tells about how the person acts during the affliction of the moon.
How to use the chart is quite simple all you need to do is put the year of birth and look for the month and day. For example: birthday be Febuary the 13th and doesn't show on the chart you have 12th and 14th you be using the 12th instead as your moon sign.