As readers of the MAPS Bulletin know by now, the Heffter Research
Institute has objectives and goals that overlap to a certain degree with
those of MAPS. Our central mission is to encourage and support
research on consciousness, but in particular to use hallucinogens as
tools in that undertaking. Ultimately, we hope to identify medical
indications for these substances that will allow them to be used to treat
psychiatric disorders that today are addressed only with palliatives. Thus, a long-term goal is
to develop these substances so they can be used as prescription medications.
If you know of persons who
might qualify for this study,
they can obtain further
information concerning
protocol design and subject
selection criteria at:
www.canceranxietystudy.org.
Many readers will know from recent media stories that, along with MAPS, the Heffter
Institute supported the study at the University of Arizona on the use of psilocybin in
obsessive-compulsive disorder. The first phase of that study has been completed and
generated sufficient promise to warrant its further continuation and expansion. In addition,
we presently have an ongoing program at UCLA Harbor Medical School to study
the value of psilocybin in the treatment of anxiety in terminal advanced-stage
cancer patients. That study is completed, and we presently have an ongoing
program at Harbor-UCLA Medical School to study the value of psilocybin in the
treatment of anxiety in terminal cancer patients. Under the direction of Board
member Dr. Charles Grob, we are attempting to replicate the significant results
of this form of therapy that were obtained more than three decades ago by Drs.
Al Kurland and Stan Grof and their colleagues. Those earlier studies employed
LSD, but our objective is to determine whether treatment with psilocybin can
provide similar efficacy.
We have now studied three subjects in a double-blind, placebo-controlled
design. In addition to examining the response of anxiety to the experimental
treatment, effects on mood regulation, pain, and quality of life are also being
assessed. All three subjects were women in their late fifties who had had
personal experience with psychedelics in the 1960s and 1970s. Notably, all
three tolerated the procedure well, and reported improved psychological status
subsequent to treatment. Two of the three subjects experienced mild blood pressure elevation,
which gradually returned to normal.
Recruitment of new subjects has been very challenging, largely because we are adhering
to very tight inclusion/exclusion criteria. Of course, as readers of the Bulletin will also
appreciate, the controversial nature of this study adds an additional burden when convincing
oncologists to refer patients to us. The setting for the research is the Los Angeles Biomedical
Research Institute at Harbor-UCLA Medical Center. If you know of persons who might
qualify for this study, they can obtain further information concerning protocol design and
subject selection criteria at: www.canceranxietystudy.org.
The Heffter Institute also provides support to the Heffter Research Center, Zurich, at the
University Hospital of Psychiatry, Zurich, under the direction of Dr. Franz Vollenweider.
Besides Dr. Vollenweider, the research group includes Felix Hasler, Olivia Carter, and Rael
Cahn, who have been working on the projects described below. The work there presently
focuses on establishing a very fundamental basis for understanding how these substances
work in the brain; for example, how they affect cognition, perception, memory, etc. The work
coming out of our Zurich Center is of the very highest scientific caliber in the world. Indeed,
this laboratory is now internationally recognized by scientists as perhaps the world leader in
the study of altered states of consciousness in response to hallucinogens.
A number of investigations into the neurobiological basis of perception and
consciousness were completed late last year. One such study area has been the
relationship between time perception, operationalized measures of sensorimotor
integration, and ego boundary alterations in normal and altered states of
consciousness induced by psilocybin (in collaboration with Marc Wittmann at
Ludwig-Maximilians University, Munich).
These studies demonstrate
to the world the unique
properties of hallucinogens
as tools to study
consciousness, and hopefully
will spur other laboratories
to become involved in this
fascinating area.
A second area of investigation has been the determination of the level(s) in
the neural hierarchy of visual perception with which psilocybin interacts (in
collaboration with David Burr, University of Pisa, and Jack Pettigrew, University
of Queensland). Using psilocybin and the 5-HT2A receptor antagonist
ketanserin, we have also been attempting to assess the role of serotonin 5-HT1A
and 5-HT 2A receptors in mediating the perception of ambiguous visual
stimuli (Necker cube, binocular rivalry, etc.) and their relation to cognitive
functions like working memory. Further studies of the effect of psilocybin on
sensorimotor gating in relationship to sensory filtering models of psychiatric
illness have also been completed (in collaboration with Mark Geyer at UC
San Diego). We have now implemented a neuroimaging paradigm using
Positron Emission Tomography (PET), with the aim of deepening our understanding of the
role of 5-HT2A receptor function underlying these phenomena, and its potential role in the
pathophysiology of obsessive-compulsive spectrum disorders (in collaboration with August
Schubiger, Department of Nuclear Medicine, University Hospital Zürich).
Finally, an EEG/ERP study into the neural correlates of ego-functions/sense of self and
perception is now underway. This investigation aims to assess the neurophysiological
correlates to the altered visual processing of ambiguous visual stimuli, as seen in our work
on binocular rivalry. Further, for the first time we are directly comparing altered states and
traits of consciousness as induced by psilocybin and meditation, using both subjective reports
and a series of high resolution 3-dimensional EEG brain mapping techniques. The meditation
portion of this study is being supported by a grant from the Fetzer Institute, and M.D./Ph.D.
student Rael Cahn from UC San Diego is primarily working on that project.
As you can see, we are supporting a mix of both clinical and basic science applications.
On the one hand we are establishing the safety of these agents for research in the context of
fundamental studies of consciousness. These studies demonstrate to the world the unique
properties of hallucinogens as tools to study consciousness, and hopefully will spur other
laboratories to become involved in this fascinating area. They are of a very fundamental
nature, revealing important things about who we are, with more direct payoffs in the future.
On the other hand, we are complementing these basic cognitive science studies with
practical clinical investigations in attempts to identify medical indications that may have
a direct and more immediate benefit to society. Our biggest limitation has been financial
resources, and if those expand, the Zurich Center would potentially also become involved in
developing clinical applications.
It is also one of our goals to encourage and support young scientists who wish to carry out
research in this field. We are pleased to announce that one of our former grantees, Dr. Charles
Nichols, who received a Heffter grant to carry out modern microarray studies of the effects of
LSD on brain gene expression, has now been appointed Assistant Professor of Pharmacology
at Louisiana State University, in New Orleans. He plans to continue his studies of the
effects of drugs on gene expression, and the relationship of gene changes to behavior. The
Heffter Institute is pleased to have been able to help this young scientist in his professional
development.
In 2004, Heffter President Dave Nichols was also named the "Irwin H. Page Lecturer" by
the International Serotonin Club, the new President of which, Mark Geyer, is also a Heffter
Board Member. Dave presented an invited lecture in Porto, Portugal titled, "35 Years Studying
Psychedelics: What a Long, Strange Trip It's Been." Finally, 2004 also saw the publication of a
comprehensive scientific review on the subject of hallucinogens, also written by Dave Nichols.
This review, titled simply, "Hallucinogens," was published in the journal Pharmacology and
Therapeutics, Vol. 101, pages 131181 (2004). Scientifically-savvy readers can consult this
tome for an up-to-date perspective on what scientists know today about hallucinogens.
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