I’ve referred to
mirror neurons in the past, but I thought with the new direction
this column has taken about living mindfully and the inner workings
of brain itself, it would be of value to write a bit more extensively
on the subject. What neuroscientists refer to as “mirror” neurons
are those found in the pre-motor cortex (the area connected with
the organization and pre-planning of our movements), and the inferior
parietal cortex (governing spatial relations and navigation) of
the human brain. Originally, neuroscientists used brain imagining
experiments through fMRIs (functional magnetic resonance imaging)
to explain their belief that these neurons “fire up” in
a networked fashion when a human (or primate) acts, as well as
when that human (or primate) simply observes the same action performed
by another of their species. When the networked firing of neurons
occurs, many neuroscientists believe, neurons “mirror” the
behavior of the other, as though the observer were him- or herself
performing the action. It was not until November 2007 that neuroscientists
announced that mirror neurons had for the first time been directly
identified in humans, after neurosurgeon Itzhak Fried implanted
electrodes into the brains of consenting epileptic patients in
an effort to find the origins of their seizures and to enable possible
surgical treatment.
The existence of mirror neurons was first brought to public attention
in Italy in 1992 by researchers Giacomo Rizzolatti and Vittorio
Gallese at the University of Parma when studying movements within
the brains of macaque monkeys. During one of their experiments,
one of the men reached his hand out to grab a peanut to give to
the monkey. The scientists then observed the same neurons in the
monkey’s brain
starting to fire as if it was reaching for a peanut himself. Taking
this a step further, there was practically no measurable difference
in neuron activity within the monkey’s brain when it reached
for a peanut or if the monkey was observing a human being doing the
same thing.
In humans, this network of neurons working interdependently is
called the mirror neuron system. An example almost everyone can
relate to is how “contagious” a yawn is; we see someone yawning
and we often yawn back – or at least struggle not to. The same
phenomenon happens when someone smiles at us – more often then
not, we smile back without even consciously thinking about it. For
me, I’ve always cringed whenever I’d see someone getting
an injection (but didn’t know exactly why) – whether
it’s happening right in front of me or on a TV show or a movie,
and is an illustration of how deeply empathetic I am in regard to
another human being’s pain – real or imagined. Have you
ever noticed an actor reflexively applauding him- or herself at an
awards ceremony and think how vain they must be? It may not be narcissism
at work at all – just simple “monkey see, monkey do.” Even
Madonna’s faux-British accent may not be entirely calculated.
(But then again…) |
Although much greater study and experimentation
is needed to refine mirror neuron theories (and of course there
are critics and detractors), many different social/cognitive skill
functions related to the mirror neuron system have been suggested,
including:
• empathy
• understanding the intentions and goals of others
• the evolution of language
• the grander theories of “mind” itself
• the ability to read someone else’s mind (not to be confused
with psychic abilities)
Some researchers feel that a deficiency or impairment in mirror neurons
may explain why autistic individuals cannot authentically understand
or empathize with other people emotionally, but extensive research
on this theory is only in the beginning stages. If this is possible,
it makes one wonder if an impairment in mirror neurons may also be
a contributing factor in those who struggle with narcissistic personality
disorder (NPD) or antisocial personality disorder (APD), as these
individuals are partially defined by their lack of basic human empathy
or any shred of remorse for emotional pain they inflict upon others – or
if such lack is only due to other conditions present in their lives.
Most scientists, even supporters of mirror neuron theories, agree
that they are only a piece of the larger puzzle in what makes us
human. But proponents are very passionate in their endorsement. Dr.
V.S. Ramachandran, professor of Neuroscience and Psychology and Director
of Center for Brain and Cognition at the University of California
at San Diego, said “I predict that mirror neurons will do for
psychology what DNA did for biology: they will provide a unifying
framework and help explain a host of mental abilities that have hitherto
remained mysterious and inaccessible to experiments.”
Remember the pain I said I’ve felt my entire life when seeing
someone receive an injection but I didn’t know scientifically
why I experience that phenomenon?
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