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PLDC London 2007

The presenters recommended by the International Light Association were interviewed by Primrose Cooper. Thank you, Primrose! The interviews appear in the sequence of the conference schedule. The quality of the sound could be better, but it witnesses to the lively atmosphere and spirited conversation in our hall.
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Primrose Cooper
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Brian Breiling
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Richard Hobday
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Anadi Martel
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Karl Ryberg
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Pierre Van Obberghen
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Richard Funk
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Pauline Allen
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Michaele Wynn-Jones
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Alexander Wunsch
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Greg Byatt
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Denise Hadden
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Traian Stanciulescu
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Primrose Cooper
Light meditation

Brian Breiling:
Introduction and overview

Richard Hobday
The architecture of sunlight therapy



The Architecture of Sunlight Therapy
Throughout history architects have designed for the sun. Much of this work was undertaken for religious purposes; to facilitate sun-worship. But they also built to take advantage of the sun's healing powers. The ancient Egyptians used sunlight as a medicine, as did the Greeks and Romans who had solaria on the roofs of their houses where they could sunbathe for health. The citizens of Imperial Rome considered sun exposure to be so important that they had right-to-sun legislation.
At the beginning of the 20th century, doctors rediscovered heliotherapy and began using it to heal tuberculosis, rickets and war wounds. Many of their patients were bedridden and needed to be wheeled outside to get the sun on them. But few, if any, hospital wards were suitable for sunbathing and so doctors had to improvise. They rearranged existing buildings, or built new ones, introducing measures which made sunlight therapy a practical proposition. These innovations were taken up by the leading architects of the day, and formed the basis for what was to become known as Modernism. In his presentation Dr. Richard Hobday will explain how sunlight therapy influenced the course of western architecture and, in particular, the work of Le Corbusier. He will also talk about the growing body of contemporary research which supports the age-old belief that sunlit buildings are healthier than those that exclude the sun's rays.
Richard Hobday is an independent consultant, researcher and lecturer. He is the author of
The Light Revolution: Health Architecture and the Sun (Findhorn Press, 2006) and The Healing Sun: Sunlight and Health in the 21st Century (Findhorn Press, 2000). Dr. Hobday received his MSc and PhD >from the School of Engineering, Cranfield University, where he specialised in solar design. An Energy Institute member and Chartered Engineer, he has been involved in a wide range of projects concerned with sustainability and health in the built environment
Anadi A. Martel
Psychoactivation of colors with light modulation

Karl Ryberg
Monochromatic light therapy in a Ganzfeld environment

Pierre Van Obberghen
How to use color testing to determine your client´s chromatic profile.

No interview availabe
Richard Funk
Benefits and riscs of light entering the eye



Pauline Allen
Lighting up people´s lives - practical applications of light therapy in a clinic based environment.

Michaele Wynn-Jones
Prison lighting: observations of SAD and depression in a men´s remand prison.

No interview available.

Michaele Wynn-Jones B.Ed. MACC MIACT spent seven and a half years as a teacher in an English men's remand prison where she become concerned about the detrimental effects of institutional lighting on the health on the inmates and staff.
Alexander Wunsch
Artificial light and health - a plea for the incandescent lamp

Greg Byatt
The history of the flicker phenomenon and its applications in therapy



The History of the Flicker Phenomenon and its applications in Therapy.
Since the beginnings of human history, we have been fascinated and entranced by
flickering light. From the twinkling light of far distant stars in the midnight sky to the warm
seduction of flickering flames we have had an essential and intimate relationship with
flickering light.
Science has taken a much closer interest in this phenomenon since the Bohemian
physiologist Jan E. Purkinje first described how he was affected by flickering light and
carefully catalogued the visual patterns formed in 1823. Further work by various
participants in the field, led to the discovery of the stroboscope, and the Zoetrope which
led on to projection of intermittent still photographs and ultimately the cinematic imagery
we know so well as film.
The association with neurological function paralleled the investigation of the electrical
activity of the brain. The rhythmic electrical pulsations of the brain were first uncovered by
Richard Caton in Liverpool in the 1870’s, the work continued throughout Europe and
Eastern Europe and came to the world’s attention with the work of Hans Berger in 1929.
The search developed in sophistication, as advances in electronics allowed and soon
utilised Stroboscopic light as a diagnostic tool. Flickering light had entered the realm of
medical and neurological investigation.
This short talk will look at the way flicker light has altered consciousness, induced trance
states, been associated with divine revelation and has an effect on the symptoms of a
variety of medical conditions.
C.V. Brief synopsis
GREGORY K. BYATT
RELAXATION AND MULTIMEDIA ARTIST/CONSULTANT

BORN 1952 Glasgow
SCOTLAND,
Has a background in stage
production and an extensive thirty
year history in health care both in
conventional and complementary
medicine. He was a founder member
of the Equinox Group, a specialist
Electro-Medicine Research and
Development organisation based in
Liverpool from 1986 -1992. He uses
his specialist expertise in electro
acupuncture and the effects of
frequency (Sound, Light and
Vibration ) on the physical body and
the state of consciousness of the
mind in his work as : Freelance
Lecturer, MultiMedia Performance
Artist and Interior Design consultant.
Also involved in Video and
multimedia DVD production, he is
continually finding new ways of using
digital presentation technology as a
teaching tool in the medium of
experiential learning.
Denise Hadden
Developing human potential through enlightened visual awareness

Traian Stanciulescu
The Living Light Matrix

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