How the Brain Works The Facts Visually Explained by DK (z-lib.org)

(Steven Felgate) #1
CONSCIOUSNESS AND THE SELF
What Is Personality?

What Is Personality?


Our personality makes us who we are. It is a set of behavioral


characteristics that shape the choices we make in life and how


we react to the world. Various systems have been invented to


assess and classify personality.


Changeable personality
From the moment we are conceived, DNA begins to shape our personality,
leading us to produce more of a certain neurotransmitter than another, for
example, or making us less sensitive to a hormone compared to other
people. This affects our underlying temperament, and even our final
personality to some extent. However, as well as our genetics, who we
are is also shaped by our experiences and environment.

Becoming you
As we grow, our brains mature along
set patterns and change through
experience. Regularly used neural
pathways become stronger, and we
may become more or less reactive
to neurotransmitters and hormones.
This changes our personality.

BABY


FA MILY


SCHOOL


HOME


FRIENDS


DAY C ARE


PARENTS


CHILD


DO IDENTICAL
TWINS HAVE THE SAME
PERSONALITY?

Identical twins, with the same


DNA, have more similar


personalities than nonidentical


twins. But there are also


differences, due


to their individual


experiences.


Closed body
language may
suggest shy
personality

Early temperament
As a result of the role genetics plays in
forming personalities, even newborn babies
behave differently from each other. For
example, some seem very sensitive to noise
or disruption—by contrast, others hardly
notice them.

Developing
a personality
Throughout childhood,
our brains change
rapidly, and experiences
affect our personality.
Home life has a large
impact, as do friends
and interactions at day
care or school.

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DNA


US_176-177_Personality.indd 176 20/09/2019 12:38

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