Japanese horror films

I have some research questions for you lot, the horror community. I'll be frank, it's in preparation for a media project I'm doing, so please, help a guy out!!!

1.Do you think Japanese horror films depict a stereotyped depiction of Japanese culture?

2.Is there a distinctive style to Japanese horror or would you consider it to be part of asian cinema in general?

3.Why do you think Japanese horror has had such an impact abroad?