Although there is some research that supports the notion that eye movements can indicate visual and auditory (but not kinesthetic) components of thought in that moment, the existence of a preferred representational system ascertainable from external cues (an important part of original Nlp Sydney theory) was discounted by research in the 1980s. Depending on the branch of Nlp Sydney (different trainers or companies) the number and some of the content of the presuppositions may vary. Some of them are:.