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As the “with” person on this book, Nancy assisted Dr.
Pert in producing the text content, as shown in the following excerpt
from the current book.
(Dr. Pert is an internationally recognized neuroscientist who is
a former Research Professor at Georgetown University School of Medicine
and Section Chief at the National Institute of Mental Health. She
is in the midst of leading edge research on emotions and the bodymind
connection. Dr. Pert appeared in the popular film What the Bleep
Do We Know!?)
Receptor-ology 101
The nuts and bolts of how body and mind are one—the new-paradigm
physiology—involves some simple biochemistry. To begin with,
virtually every cell in the body is studded with thousands of tiny
structures called receptors. Like the sense organs—the eyes,
nose, and ears—the job of the receptors is to pick up signals
coming at them from the surrounding space. They're so important that
a full 40 percent of our DNA is devoted to making sure that they're
perfectly reproduced from generation to generation.
Once the receptors receive a signal, the information is transferred
to deep within the cell's interior, where tiny engines roar into
action and initiate key processes. Data coming in this way directs
cell division and growth, cell migration for attacking enemies and
making repairs, and cell metabolism to conserve or spend energy—to
name just a few of the receptor-activated activities.
The signal comes from other cells and is carried by a juice that
we call an informational substance. These juices from the brain,
sexual organs, gut, and heart—literally everywhere—communicate
cell to cell, providing an infrastructure for the 'conversation'
going on throughout the bodymind. You know these juices as hormones,
neurotransmitters and peptides, and we scientists refer to all three
with one word: ligand. This term is from ligare, a Latin word meaning "to
bind," and is used because of the way that the substances latch
on so tightly to the cell's surface receptors.
Information-carrying ligands are responsible for 98 percent of all
data transfer in body and brain. The remaining 2 percent of communication
takes place at the synapse, between brain cells firing and releasing
neurotransmitters across a gap to hit receptors on the other side.
In What the Bleep . . . !?, audiences saw an animated electrical
storm taking place in the brain to show what this synaptic activity
looks like. But what they didn't see is that there are neurons with
this same electrical-sparking activity firing throughout the body,
not just in the brain.
My personal favorite among the ligands are the peptides, which consist
of a string of amino acids, joined together like beads in a necklace;
larger strings of amino acids are called proteins. There are over
200 peptides mapped in the brain and body, each one sounding a complex
emotional chord—such as bliss, hunger, anger, relaxation, or
satiety—when their signal is received by the cell. I've devoted
my 30-plus year career to studying peptides such as endorphins and
other substances.
In addition, everyone should know that most ligands have chemical
equivalents found outside the body, such as Valium, marijuana, cocaine,
alcohol, and caffeine, to name a few.
You've now learned about the two components that make up this bodymind
communication system—the receptor and the ligand. These are
what I have called the 'molecules of emotion.' But how do the two
find each other across the vast reaches of intercellular space, hook
up—or bind—and then transfer vital information to affect
cellular, bodywide activity?
We used to explain the attraction by a quality called receptor specificity,
which is that each receptor is specifically shaped to fit one and
only one ligand. A lock-and-key model helped with visualizing this
method of connecting, or binding. The 'key' (a peptide) floats by
until it finds its perfect 'keyhole' (the receptor). Key inserts
into the keyhole, opening the 'lock' of the cell, and cellular activities
begin.
While this is partially accurate, we now understand a more dynamic
relationship between ligand and receptor, involving something called
'vibratory attraction.' Sitting on the surface of the cell, the receptor
wiggles and shimmies, changing from one configuration to another
in a constant state of flux. This dance creates a vibration that
resonates with a ligand vibrating at the same frequency, and they
begin to resonate together.
Cellular resonance—it's like when you pluck one string on
two different guitars in the same room—one will resonate with
the other, both striking the same note. This creates a force of attraction,
the way that peptides resonate with their receptors and come together
to strike that emotional chord as they bind. And that's when the
music begins!
I've said that the emotions are the link between the physical body
and nonphysical states of consciousness, and the receptor-binding
site is where this happens! The attracting vibration is the emotion,
and the actual connection—peptide to receptor—is the
manifestation of the feeling in the physical world. That's why I
call peptides and their receptors the molecules of emotion.
What's the result of all this activity? On a bodywide scale, the
receptors are dynamic molecular targets, modulating our physiology
in response to our experience. Emotions influence the molecules,
which in turn affect how we feel. One example is that receptors wax
and wane in number and sensitivity, depending on how often they're
occupied by peptides or other informational substances. In other
words, our physical body can be changed by the emotions we experience.
And one last thing: We used to think that the peptides latched onto
a single receptor, but we now know that receptors are often clumped
together in tight, multiple complexes. Together, they form the walls
of deep channels leading into the interior of the cell; and they
open and close with a rhythmic, pumping action. As they move, these
channels let substances in and out of the cell, setting up an ionic
flux, or electrical current, which then courses throughout the bodymind.
One of the things that this current does is influence the firing
'set point' of neurons in the brain, determining the speed of brain-cell
function. So you can see that the molecules of emotion are directly
affecting how you think! If we were to show a cartoon version of
this whole process—peptides binding, receptors pumping, electric
current moving out—we'd see bright, colorful clouds of vibrating,
singing, energy surrounding each cell; and we'd hear a chorus of
resonating voices soaring in the background.
You may be wondering if these peptides and receptors, the molecules
of emotion, actually produce the emotions, that is, Do they come
first and then we have the feelings? Well, it's not a cause-and-effect
relationship. Rather, it's happening simultaneously, all at once.
Remember, these molecules are the emotions, not their cause. What
we experience as a 'feeling' is the actual vibrational dance that
goes on when peptides bind to their receptors, whether it happens
in your conscious awareness or not. Below what we notice happening,
a huge amount of emotionally mediated information is being exchanged
throughout the body and brain, much of which never rises up into
our consciousness. This is why I say: Your body is your subconscious
mind. |