Jacobs' hypotheses have been criticized as unsupportably dire by those who take a more positive view of the alien abduction experience such as John E. Mack; Jacobs labels these critics as "positivists" in his writings. Details of alien abductions reported by Jacobs and so-called "positivist" researchers may not differ to any great extent; criticism of Jacobs by such peers therefore focuses on Jacobs' interpretations, e.g., where Jacobs sees "infiltration" (a negative), others may see "integration" (a positive). Where differences in reports are more substantial (extending beyond the interpretive to actual distinctions between the alleged events reported by those who Jacobs interviews versus those interviewed by others), Jacobs has explained that elements not matching his own perspective are what he terms "confabulations." Addendum 1: Abductions.
