How important is the impact of the environment on human development ? American scienƟst David Merrell, in a classic aƩempt to create a connecƟon between science and personal development, has shown that the environment in which we live develops our personality (or affects us).

1. How important is the impact of the
environment on human development ?
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2. Personal Development,
Mo va on,Inspira on, Educa on.
American scien st David Merrell, in a classic
a empt to create a connec on between science
and personal development, has shown that the
environment in which we live develops our
personality (or affects us).
Obviously, in the scien fic world there were the
premises of some links between the environment
and personal development, but Merrell carried out
a very interes ng experiment that shows how
important the environmental impact is on the
development of the individual.
Merrell divided a group of guinea pigs into 3 units.
The task each unit had to accomplish was to cross a
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3. maze to get to the food.
Unit 1 did this on an average of 15 minutes for each
guinea pig, without being influenced in any way by
the external environment.
Unit 2 guinea pigs were kept for a week, ten hours a
day, in an environment in which the researcher put
Mozart's music.
The mice in unit 2 managed to shorten the path
through the maze by 8 minutes on average.
Finally, unit 3 lived for a week in a laboratory where
he listened to hard rock music for 10 hours a day.
This unit needed up to 30 minutes more to
complete the maze, compared to unit 1 (which
went through the maze without being exposed to
any music).
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4. Merrell wanted to conclude the experiment,
bringing all units together over a few months to see
how the guinea pigs behave together.
Surprisingly, the experiment could not be
completed because the guinea pigs in unit 3 "hard
rock" killed each other in the mean me.
The value of this scien fic discovery in personal
development lies in determining the profound
impact that a single determinant of the external
environment can have on the behavior,
performance and even existence of individuals.
In their a empt to bring science and personal
development online, researchers from around the
world are intensely inves ga ng the effects that
one element or another may have on the human
psyche and personality, given that we do not yet
know the full range of func onali es and the full
poten al of them. of the human brain.
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5. What does Merrell's experiment teach us in terms
of personal development?
Obviously, not listening to non-stop classical music
does us good while hard rock music does us harm.
The important lesson for personal development is
that exposure to a certain environment for a long
me radically changes the behavior and func oning
of the individual (contrary to the psychological law
of the s mulus applied repeatedly) and that
flexibility, change and adaptability are necessary
ingredients in the personal development of each of
us.
In other words, as a more entertaining conclusion,
but at the same me very useful in the plan of each
one to overcome their limits and to become more
efficient and more efficient, scien fic discoveries in
personal development teach us that it is okay to be
a fan of hard rock music, as long as you have an
open mind and classical music and make the proper
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6. environment correla ons to help you achieve the
expected results and performances, while the
rigidity and refusal to try alterna ves leads to the
failure of any personal development plan.
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