MAPS Vol11 No2 - Time, medyczne- książki w j ang
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TIME
45
By Dr. Roy Mathew, Professor of Psychiatry and
Associate Professor of Radiology
Duke University Medical School
(Mathe008@mc.duke.edu)
s
ince very early days, time has bedazzled and intrigued humans.
More than 1500 years ago, Indians identified time as the basis for
mundane reality. They equated the creation of time as the first step in the
creation of the universe. This age-old belief received scientific confirmation
in Einstein’s theory of relativity. Einstein also added support to the concept
that time and the mundane reality are both non-substantial. Time, Einstein
showed, was relative and therefore, the mundane world with time as its basis
also had to be ephemeral. Change in the flow of time triggers drastic changes
in matter and its formations. The flow of time is subject to influence by such
factors as gravity, and it does not flow at the same rate in different parts of the
universe. Even here on Mother Earth, atomic clocks have been shown to tick
at different rates on mountaintops and in supersonic jets.
The mathematical concept of time has a better scientific basis and is
preferred by the purists. Nevertheless, for most people, time means a
personal experience of time. Humans experience time both subjectively and
objectively. The swing of the pendulum, the movement of the clock’s hands,
and the sunrise and the sunset are some of the perceptual indices of the
passage of time. We also have an inner sense of time; even in the absence of
perceptual cues, we are aware of the flow of time. A number of bodily
functions, of which one is barely aware and over which one has minimal
volitional control, are time-based. Most, if not all, biological phenomena are
cyclic (cycles per unit of time). Breathing and heartbeat are good examples
of this. While some biological functions have long cycles (menstrual cycle,
for example), others (like pulse) are much shorter. Many endocrine and
autonomic functions have diurnal cycles.
The electroencephalogram (EEG) that provides information about
levels of brain activity is also cyclic. The crests and troughs that characterize
EEG readings form the objective basis for dividing the human experience
into three broad categories: wakefulness, dream sleep and dreamless sleep. In
fact, the entire human life is contained within these three chapters. The
ancient Sanskrit word “aum” is derived from three letters, one representing
each of these three phases. Aum, which is closely related to the Latin “omni”,
means “everything”. Both “Omni” and “Aum” have strong religious and
spiritual connotations.
Time perception is different during these three phases. It is strongest
during wakefulness, somewhat weak during the dream phase, and almost
absent during the dreamless phase. If time, a created element, is not
substantial, the waking experience built around it should also be phantas-
Since time is
the axis for
perceptual reality,
transcendence of
perceptual reality
would seem to
involve alteration in
time perception. Thus,
the effects of
the purportedly
consciousness-
altering drugs on
time perception
should be of interest.
“
“
46
mal. By the same token, dreamless sleep (where time is felt
minimally) should be the most “real” of the three, with
the dream phase falling in between. According to the
eighth century Indian philosopher Samkara, “In the
dream state where there is no object, mind on its own
creates everything; and it also creates everything seen
when awake as well. There is little difference between the
two states. Everything
we see is a creation of
the mind.” “During
dreamless sleep when
there is no object at all,
no pleasure or pain,
consciousness shines in
its own glory.”
From the very early
days, humans were not
totally satisfied with the
mundane experience
and the associated real-
ity. Intuitively, they
questioned its validity
and explored ways and
means for achieving
more satisfying states of
mind. Among the many routes they found, the use of
drugs was the earliest and the most widely used. The
ancients came across a number of vegetal derivatives with
marked effects on the quality of the conscious experience.
In 1500 BC, the Aryan hordes that came over the
Himalayas to the Indo-Gangetic planes brought with
them the mythical drug, soma. According to the Rig
Veda, their ancient anthology of hymns, soma catalyzed
communion between humans and gods. “We have drunk
the soma; we have become immortal; we have gone to the
light; we have found the gods. What can hatred and the
malice of mortals do to us now?” The botanical identity
of soma is a matter of controversy, although R. Gordon
Wasson of the Botanical Museum of Harvard University
identified it as Amanita muscaria.
Elsewhere in the world, other consciousness-altering
drugs gained popularity and acceptance. The Aztecs used
Mexican mushrooms while the Huichol turned to
peyote. Other South Americans found ayahuasca effec-
tive while African tribes in Gabon and the Congo found
ibogaine (Tabernathe iboga) useful. The Indian hemp
(cannabis sativa) is one of the earliest and probably, the
single most popular consciousness-altering drug. Evi-
dence suggestive of its earliest use comes from the island
of Taiwan over 10,000 years ago. It was used in India,
even prior to 1500 BC, before the Aryans arrived. Evi-
dence suggestive of its use by other ancient civilizations
including the Egyptians, Babylonians, Assyrians,
Scythians, Greeks, and probably, Hebrews, can be found.
Since time is the axis for perceptual reality, transcen-
dence of perceptual reality would seem to involve alter-
ation in time perception. Thus, the effects of the purport-
edly conscious-
ness-altering
drugs on time
perception
should be of in-
terest. Unfortu-
nately, such re-
search is not
easy. Of the 150
or so such drugs
known to West-
ern science, very
little pharmaco-
logical informa-
tion is available
on most. Many
of these plants
contain chemi-
cals other than the substance responsible for the con-
sciousness-altering effects, and these effects too have to be
taken into account. Several of these plant extracts are too
toxic to be administered to human volunteers. Identifica-
tion, isolation, and purification of the active ingredient
are by no means easy and have not been carried out in
many cases. Animal studies are obviously easier; however,
animals will have difficulty communicating altered con-
sciousness to the experimenter. Animals do not seem to
care for many drugs used for consciousness alteration in
humans, such as peyote and psilocybin, which would
suggest brain mechanisms unique to humans.
Although there is not a great deal of scientific infor-
mation in this area, the effects of some these drugs on time
perception are known. Peyote cactus, LSD and mari-
juana all produce significant distortions of time. The
available few studies vary substantially in sophistication.
The effects marijuana and its active ingredient tet-
rahydrocannabinol (THC) on time perception have re-
ceived more scientific attention. Marijuana was found to
slow both the subjective and objective perception of time.
Many studies demonstrated altered time sense and the
underproduction of time estimations. In one study, 28
daily marijuana users displayed greater time underpro-
duction than 32 normal controls which indicated that the
“
...crests and troughs that characterize
EEG readings form the objective basis
for dividing the human experience into
three broad categories - wakefulness,
dream sleep and dreamless sleep....The
ancient Sanskrit word 'aum' is derived
from three letters, one representing
each of these three phases.
“
47
marijuana-induced time distortion may persist beyond
the acute phase of intoxication.
Dr. William H. Wilson and I attempted to track the
neurological basis for
the marijuana-in-
duced alteration in
time perception. Us-
ing positron emission
tomography, we iden-
tified the cerebellum
as the brain region re-
sponsible for mediat-
ing this effect. The re-
lationship between al-
tered cerebellar activ-
ity and impaired time
sense is in keeping
with several previous
reports that linked the
cerebellum to an in-
ternal timing system.
Other investigators showed that the cerebellum was
involved in the temporal sequencing of motor activity. In
human subjects, cerebellar lesions were associated with
impairment in rhythmic tapping, a time-dependent task.
Patients with cerebellar atrophy were found to be defi-
cient at judging the relative duration of time intervals.
Traditionally, the cerebellum has been associated with
maintaining balance and coordination of movements. It
may indeed also be responsible for the timing function
essential both for balance and coordination.
This finding needs confirmation. Studies on
the effects of other consciousness-altering drugs
on time perception should be conducted. We
have started projects on the effects of ketamine
and mescaline.
Change in time perception is accompanied by a
number of other phenomena including distorted sensory
perception and an altered sense of self (depersonaliza-
tion). Time transcendence, regardless of how it is brought
about, often ushers in a very unique sense of well being,
usually referred to as joy or bliss. Ancient Indians called it
“ananda”. Unlike the mundane pleasure that contrasts
with pain, ananda is unimodal with no antipode. It is
totally ineffable: it has to be experienced. Ananda has two
other accompaniments: “Sat” or truth and “Chit” or
illumination. Together, sat, chit, and ananda
(Sacchitananda) stand for divinity.
The desire to overcome mundane reality is just as
strong today as it was in the early days. With the giant
strides in biochemistry and pharmacology, newer or
more refined drugs have made their appearance. LSD,
mescaline, and THC are good examples. Newer drugs
including MDMA
(Ecstasy) have entered
the scene and are gain-
ing popularity, espe-
cially among adoles-
cents. All regulatory
agents and agencies
are concerned about
their ever-increasing
appeal.
As was noted pre-
viously, a number of
these drugs suffer
from serious toxicity
problems. In sub-
stance abuse clinics
across the country we
tell our patients, espe-
cially adolescents, about the bad effects of certain drugs in
hopes that it will deter them from engaging in their use.
That would seem to be a feeble approach to quell and
contain the consuming passion for consciousness alter-
ation that spans our entire human history. Unfortu-
nately, at a time when physicists and mathematicians are
actively engaged in the study of time, in neurosciences,
we seem to have minimal interest in time perception and
seem obsessed in demonstrating how drugs which alter
time perception are “bad for us”.
The desire to overcome mundane
reality is just as strong today as it
was in the early days.
“
• Mathew RJ: The True Path. Western Science and the Quest for
Yoga. Cambridge, Massachusetts, Perseus, 2001.
• Mathew RJ: Spirituality and the Brain. North Carolina Medical
Journal. 59: 154-160, 1998.
• Mathew RJ, Wilson WH, Turkington TG, Coleman RE:
Cerebellar activity and disturbed time sense after THC. Brain
Research 797:183-189, 1998.
• Mathew RJ, Wilson WH, Chiu NY, Turkington TG, DeGrado
TR, Coleman RE: Regional cerebral blood flow and depersonal-
ization after tetrahydrocannabinol administration. Acta
Psychiatrica Scandinavica 100: 67-75, 1999.
...at a time when physicists and
mathematicians are actively engaged
in the study of time, in
neurosciences, we seem to have
minimal interest in time perception
and seem obsessed in demonstrating
how drugs which alter time
perception are 'bad for us'.
“
“
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