a "perennial psychology". According to Hood, "the perennialist view has strong empirical support," since his scale yielded positive results across various cultures, stating that mystical experience as operationalized from Stace's criteria is identical across various samples. Although Stace's work on mysticism received a positive response, it has also been strongly criticised in the 1970s and 1980s, for its lack of methodological rigueur and its perennialist pre-assumptions. Major criticisms came from Steven T. Katz in his influential series of publications on mysticism and philosophy, and from Wayne Proudfoot in his Religious experience (1985). Masson and Masson criticised Stace for using a "buried premise," namely that mysticism can provide valid knowledge of the world, equal to science and logic. A similar criticism has been voiced by Jacob van Belzen toward Hood, noting that Hood validated the existence of a common core in mystical experiences, but based on a test which presupposes the existence of such a common core, noting that "the instrument used to verify Stace's conceptualization of Stace is not independent of Stace, but based on him." Belzen also notes that religion does not stand on its own, but is embedded in a cultural context, which should be taken into account. To this criticism Hood et al. answer that universalistic tendencies in religious research "are rooted first in inductive generalizations from cross-cultural consideration of either faith or mysticism," stating that Stace sought out texts which he recognized as an expression of mystical expression, from which he created his universal core. Hood therefore concludes that Belzen "is incorrect when he claims that items were presupposed." Mystical experience The term "mystical experience" has become synonymous with the terms "religious experience", spiritual experience and sacred experience. A "religious experience" is a subjective experience which is interpreted within a religious framework. The concept originated in the 19th century, as a defense against the growing rationalism of western society. Wayne Proudfoot traces the roots of the notion of "religious experience" to the German theologian Friedrich Schleiermacher (1768–1834), who argued that religion is based on a feeling of the infinite. The notion of "religious experience" was used by Schleiermacher to defend religion against the growing scientific and secular critique. It was adopted by many scholars of religion, of which William James was the most influential. A broad range of western and eastern movements have incorporated and influenced the emergence of the modern notion of "mystical experience", such