Hello, I do have to find a research article on some aspect of human development. what would be some ideas? like brain development. thanks

How people acquire language skills is an interesting one.

http://www.google.com/search?rlz=1C2GGGE_enUS379US455&hl=en&site=&q=how+humans+acquire+language&oq=how+humans+acquire&aq=0&aqi=g1g-v4g-b5&aql=&gs_sm=c&gs_upl=2015l6078l0l9225l18l18l0l1l1l0l476l2416l0.9.2.0.1l12l0

It's very closely related to learning a second language, of course.
http://www.sdkrashen.com/SL_Acquisition_and_Learning/index.html