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The Institute for the Study of Peak States (ISPS) is a world-wide research, teaching, and clinical treatment organization focused on the study of the psychology and biology of consciousness. Our groundbreaking discoveries in prenatal development and in the tremendously exciting new field of subcellular psychobiology have led to an entirely new understanding of the underlying biology of psychoneuroimmunology and epigenetics. This has stunning, practical applications, allowing creation of entirely new techniques for the treatment of mental and physical diseases and the acquisition of exceptional states of consciousness.

 Subcelllular Psychobiology cover


            Our original research efforts were centered around understanding the cause of spiritual, shamanic, and transpersonal experiences. Whole-Hearted Healing, a trauma healing technique that uses regression was developed for this investigation. This led to the discovery of 'peak states' of consciousness - many of which have a profound impact on quality of life - and the development of the prenatal 'developmental events model' that explains why peak experiences, events, and abilities exist.
            The new field of subcellular psychobiology is an even more fundamental breakthrough. It gives a cohesive framework that shows how psychological (and spiritual) techniques work biologically. It has also enabled us to discover the underlying causes and derive treatments for a number of devastating mental (and physical) diseases, many of which have been considered incurable. Our psycho-immunology approach is a whole new frontier of science; it will be decades before the huge range of applications are explored and utilized.
            The Institute also encourages and supports the growth of the field of acquiring peak states by searching for and providing links to other non-Institute approaches.


            To turn research into practice, we now have a school teaching our work to professionals internationally. Client safety is of utmost importance to us, so the Institute's professional training program also certifies and licenses practitioners.
            Our professional classes cover three different areas:
  • Psychological healing techniques that widen the range of problems that a therapist can treat. They can be used on their own or as a complement to most other healing modalities, and can be easily added to a therapist's healing repertoire. The best known is Whole-Hearted Healing™, a regression technique that is suitable for everyone. It easily accesses and heals prenatal events. (The technique is given on this website as a public service.)
    Cover Peak States of Consciousness
  • Theory and methods for acquiring a variety of different, permanent peak states of consciousness. In particular, our technique to turn peak experiences into permanent peak states is especially appreciated by clients.
  • Specializations -  the teaching and licensing of therapists in the treatment of specific diseases. Our techniques are fast, effective, and permanent.


            Currently the Institute focuses on just a few of the huge number of potential diseases our approach could address. Our current clinical projects include addictions, schizophrenia, multiple sclerosis and autism. This is a work in progress - the addictions process is ready for clients, others are being tested and should be available soon, and some are still being derived.
            Some of our processes are used by licensed therapists in their own offices. The Institute also has several clinical facilities nationally and internationally (the country flags on the left link to them).
            The Institute is also pioneering a new way to deliver health care - a 'charge for results only' approach to both psychological and physical conditions.

About the Institute

            The core purpose of this Institute is to find ways to improve the quality of life for all of mankind. We've written this website to help professionals and laypeople become informed on the specifics of our discoveries and keep updated as our work progresses - and to attract people who share our vision. We have a free newsletter that you may wish to subscribe to by clicking the link at the bottom of this page. If you have any questions, comments, or suggestions, please get in touch. Enjoy!
            ~Shayne McKenzie, CEO
            ~Grant McFetridge Ph.D, Research Director

Recent News

Silence the Voices cover
Added Dec 16, 2017: Our new book, Silence the Voices: Discovering the Biology of Mind Chatter by Dr. Grant McFetridge is now on sale on Amazon in the US, Europe, and Australia. You can 'look inside the book' on the Amazon websites.

Added March 26, 2017:
From our archives, we've put online a 1996 TV interview on "Alternatives to Conventional Psychological Therapy" with Sheelo Bohm and Grant McFetridge. Much of the discussion is still relevant today.

Subcellular Psychobiology cover in Russian
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Added Mar 8, 2017: Free Russian translation of the Subcellular Psychobiology Diagnosis Handbook and The Whole-Hearted Healing Workbook are online now for downloading as a PDF.

Added Mar 6, 2017: From Apr 25 - May 16, 2017, our CEO Shayne McKenzie (Australia) will be in Europe meeting certified therapists and people interested in our work. You can arrange meetings with him at McKenzie Email, phone +61 (0) 432 887520 in Australia, or contact a staff person in your country.

Added Oct 15, 2016: Added a webpage about our work on a treatment for Lyme disease, including the psycho-immunology principle used for creating immunity.

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