“NOTHING SO NEEDS REFORMING
AS OTHER PEOPLE’S HABITS.” (Mark Twain)
The
force of habit; we all have behavior that can be termed “habitual.” Humans
develop hundreds if not thousands of them and they are mostly benign. Habits
can be as innocent as washing your hands after flushing the toilet, locking the
front door when you leave home, or petting your dog on the head.
People
say that they have a “habit” of doing this or that, but what they frequently
mean is that they have a practice or tendency to do something. Their action
occurred because they had a conscious thought to make it happen, even if the
thought was very brief. If you say that you have a habit of visiting The Statue
of Liberty when you are in New York, you probably mean that you have a “practice”
of doing it. It is likely a conscious decision.
A “habit” is defined as a
relatively simple, routine behavior that is subconsciously repeated on a
regular basis. Usually a person is not aware of the behavior at all. It occurs
without thinking because the pattern of its use has long since been learned and
internalized in the brain.
When
behaviors are often repeated and associated with a specific context (such as a
place or time of day), they are triggered in your brain. The more often the
behavior is repeated, in conjunction with the context, the stronger the habit.
Subconscious habits are cued by context. In experiments, animals in a strange
setting seem to forget their habits. People who smoke are triggered to light up
at the completion of a meal or when entering the room where they keep their
cigarettes (both are contexts). Typical habits include overeating,
nose-picking, procrastination, or obsessive/compulsive thoughts and actions.
Smoking is in between a habit and an addiction. The desire for a cigarette, the
pleasant feeling and the chemical high, is more related to an addiction; but
the time and place a person smokes is likely to be more of a habit.
A habit itself is neither
good nor bad; it is just a behavioral process developing in your brain. What
makes them advantageous or not is their affect on your physical or
psychological well being. Oddly, old habits are very hard to break and new
habits form with difficulty over a long period of time.
So where are your habits
stored? Scientists believe the center of habit formation is in the “basal
ganglia,” a collection of tissues located at the base of the brain. Along with
the cerebral cortex and thalamus, it directs motivational and emotional
functioning, voluntary motor control, and (most importantly) procedural
learning and habit development. It is life’s little instruction book for simple
behavioral routines.
Ann
Graybiel, a scientist associated with MIT, believes that the brain’s creation
of habits is evolutionary, and that early man did not generally rely on habits.
Learning habits takes a lot of brain power and that it takes up most of the
brain area itself. Primitive man was not a “multi-tasker” and had to consider
each action he made, even though he did the same things over and over. The
development of the basal ganglia allowed some behavior to be ingrained so that
modern man could function on a simple level, using habits, while consciously
thinking about more complex behaviors.
Recently, basal ganglia
malfunction has become a prime suspect in medical disorders of movement, habit,
and mood. The feedback between the basal ganglia and the cortex may be
manifested by maladies such as Parkinson’s disease, Huntington’s disease, and
obsessive-compulsive disorder.
Habit
and addiction are seen as two different phenomena though. “In the case of
addiction, we get a surge of dopamine, a reward signal in the brain in the
additive phase (habitual behavior creation),” says Dr. Graybiel. “This really
turns the brain on. In a habit, we probably do too but after a while the
behavior becomes autonomous. Then, even if the reward rush isn’t there, we do
it anyway.” Habits and addictions also differ in their response to an
individual’s degree of will power. If a person is still in control of their
behavior, then it’s likely a habit.
And finally, can a habit
(good or bad) be eliminated? No, probably not. The best a person can hope for
is that the habit can be subdued to a point that it doesn’t exhibit itself -
that is until the appropriate triggers and context are present.
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