Book 9 presents another important chiropractic diagnostic tool included in Gonstead patient analysis, the Nervoscope. The value of this instrument cannot be underestimated in the hands of a skilled practitioner. The history of the paraspinal skin temperature differential instrumentation is described, along with Gonstead’s contributions to its improvement and the probable scientific basis of the instrument and the relationship of its reactions to neurological dysfunction. Various responses to temperature differential observations on the patient will be explained, and how such observations help add to the other patient and examination findings identifying the primary subluxation.
