You might be thinking about the term 'perseveration', which is the term used for repeating things over and over. Perseveration is one of a few examples of disorganized speech that sometimes accompanies schizophrenia. A different example is 'echolalia' in which the person repeats (echoes) the utterances someone else is making.
Hope that help
Will research this and get back to you. I was at the NAMI convention for a week so didn't get a chance to respond sooner.
is it an anaphora the repetition of the same words or group of words at the beginning of seccessive clauses....