Janov initiated from the outset small-scale research using questionnaires and measures of EEG, body temperature, blood pressure and pulse from his patients. A 1971 "Pittsburgh Press" article cited a University of California at Irvine study on primal therapy patients that showed a slowing of brain waves. Janov claimed that primal therapy reduced, in some patients, the frequency and the amplitude of Alpha waves, core body temperature (as much as three degrees) and blood pressure (as much as 30 percent). Two Brain Research Institute (UCLA) scientists confirmed that there were brain-wave changes in primal patients.