The focus of Chris Ryder's PhD research is on looking at how we make new words using suffixes, such as adding 'ie' to 'self' to get 'selfie'.
Language is constantly evolving, and Chris's research has so far involved looking at why suffixes tend to be used commonly for making new words.
He's been studying transcriptions of naturally-occurring speech to find these new suffixed words, and is currently taking the findings of this further to look at empirical studies of how English speakers perceive these new words and suffixes.