Measuring a thought

Think about a thought. Easy to do but where does the thought come from? How is it created? Can it be measured? If so what in the mind is measured? This presentation describes a method for answering these basic questions. The answers derive from a new experimental method called Directly Measured Stimulus Differences (DMSD) and a new theory of mental measurement, a cybernetic process, for the creation of thought. The ideas of Prime Thought and Prime Mind are introduced.