Do I need to report a stipend received for research in Japan as income?

I am a grad student and spent the summer doing research in Japan for which I received a stipend.  The stipend was paid by the Japanese institution where I was doing research so the stipend was not included on my W2 or 1098T from Texas A&M.  Nor did I receive a 1099-MISC.  Do i need to report this as income?