more fundamental issue of which conceptual framework precedes and shapes these experiences. Katz further notes that Stace supposes that similarities in descriptive language also implies a similarity in experience, an assumption which Katz rejects. According to Katz, close examination of the descriptions and their contexts reveals that those experiences are not identical. Katz further notes that Stace held one specific mystical tradition to be superior and normative, whereas Katz rejects reductionist notions and leaves God as God, and Nirvana as Nirvana. According to Paden, Katz rejects the discrimination between experiences and their interpretations. Katz argues that it is not the description, but the experience itself which is conditioned by the cultural and religious background of the mystic. According to Katz, it is not possible to have pure or unmediated experience. Yet, according to Laibelman, Katz did not say that the experience can't be unmediated; he said that the conceptual understanding of the experience can't be unmediated, and is based on culturally mediated preconceptions. According to Laibelman, misunderstanding Katz's argument has led some to defend the authenticity of "pure consciousness events," while this is not the issue. Laibelman further notes that a mystic's interpretation is not necessarily more true or correct than the interpretation of an uninvolved observer. Robert Forman – pure consciousness event Robert Forman has criticised Katz' approach, arguing that lay-people who describe mystical experiences often notice that this experience involves a totally new form of awareness, which can't be described in their existing frame of reference. Newberg argued that there is neurological evidence for the existence of a "pure consciousness event" empty of any constructionist structuring. Richard Jones – constructivism, anticonstructivism, and perennialism Richard H. Jones believes that the dispute between "constructionism" and "perennialism" is ill-formed. He draws a distinction between "anticonstructivism" and "perennialism": constructivism can be rejected with respect to a certain class of mystical experiences without ascribing to a perennialist philosophy on the relation of mystical doctrines. Constructivism versus anticonstructivism is a matter of the nature of mystical experiences themselves while perennialism is a matter of mystical traditions and the doctrines they espouse. One can reject constructivism about the nature of mystical experiences without claiming that all mystical experiences reveal a cross-cultural "perennial truth". Anticonstructivists can advocate contextualism as much as constructivists do, while perennialists reject the need to study mystical experiences in the context of a mystic's culture since all mystics state the same universal