Psychedelics and breathwork Grof's early studies were of
LSD and its effects on the
psyche—the field of
psychedelic therapy. Building on his observations while conducting LSD research and on
Otto Rank's
theory of birth trauma, Grof constructed a theoretical framework regarding
prenatal and perinatal psychology and
transpersonal psychology. In Grof's view, LSD sessions reveal the
psychopathology of an individual to reflect their experience of the stages of birth. He describes four stages: (1) embryonic peace and transpersonal connection, (2) inundation with bodily matter during fetal growth, (3) the stress of the prenatal period, and (4) the release of birth. Various neuroses are mapped to traumas at particular stages, e.g.,
ennui could be caused by
Caesarean section, resulting in an individual feeling like they have little reason to exert effort.
Suicidal ideation is explained by the deep memory of prenatal suffering being terminated by release from the
womb (transposed to an escape from life itself). Chemical
addiction could stem from the use of
anesthesia during birth. Religious belief (e.g., identification with the
crucifixion of Jesus) is also linked to birth, with
reincarnation explaining transpersonal experiences. Grof called a developed form of his theory an "expanded cartography of the human psyche". Following the suppression of legal LSD use in the early 1970s, Grof pursued this therapeutic direction without drugs, by codeveloping with his wife, Christina Grof, a combination of deep and rapid breathing, evocative music, focused bodywork, and mandala drawing. Originally termed "
Holotropic Breathwork", he now uses the trademark Grof Breathwork to describe this technique.
Interplay of hylotropic and holotropic impulses in the psyche Grof distinguishes between two modes of consciousness: the
hylotropic and the
holotropic. The hylotropic mode relates to "the normal, everyday experience of
consensus reality". In contrast, holotropic is characteristic of non-ordinary states of consciousness such as meditative, mystical, or psychedelic experiences. According to Grof, contemporary psychiatry often categorizes these non-ordinary states as pathological. Grof connects the hylotropic to the
Buddhist conception of
namarupa ("name and form"), the separate, individual, illusory lower self. He connects the holotropic to the Hindu conception of
Atman-Brahman.
Hypothesis on near-death experiences In the late 1970s, Grof proposed a psychological hypothesis to explain the
near-death experience (NDE). According to Grof, the NDE reflects memories of the birth process with the tunnel representing the
birth canal.
Susan Blackmore wrote that the hypothesis is "pitifully inadequate to explain the NDE. For a start the newborn infant would not see anything like a tunnel as it was being born." The psychologist
Chris French has written "the experience of being born is only very superficially similar to the NDE" and the hypothesis has been refuted as it is common for those born by
caesarean section to experience a tunnel during the NDE.
Michael Shermer also criticized the hypothesis "there is no evidence for infantile memories of any kind. Furthermore, the birth canal does not look like a tunnel, and besides the infant's head is normally down and its eyes are closed." An article in the peer-reviewed APA journal
Psychology of Consciousness suggested that Grof's patients may have experienced
false memories of birth and before birth. ==Influence on other researchers==