The adolescent brain and brain development is
adversely affected by substance use. Peer pressure, euphoria, reward, curiosity,
to mask depression or anxiety, stress, obsession, pleasure seeking, to feel
better, compulsion and impulsivity are key reasons why one uses drugs, outlined in a lecture
by Professor Graeme. “Impulsivity
is when people do things without thinking of the consequences.” (Graeme,
19:54, Drugs of Abuse).
Experiments in Cambridge conducted with high and low
impulsive rats and impulsivity was linked to drug addiction. There was less need
for cocaine in high impulsivity rats (rats with less dopamine receptors),
compared to an addictive need for cocaine in low impulsivity rats (rats with
high dopamine receptors). Findings suggest impulsive actions (in rats) led to addiction;
however, further studies were crucial in regards to human brain development.
The presence of high or low dopamine receptors in the human brain can also be a
precursor to addiction.
In addition, Dr. Amir Levine, psychiatrist and
neuroscientist, stated in lectures
that, “Adolescence
is a crucial time for the development of addiction.” (Levine,:40, World
Science Festival). Adolescent development, age and addiction percentages are
staggering. For example, there is a “25%
chance of becoming addicted [using an illicit drug before the age of 18] but .
. . after the age of 21, [there is] only a 4% chance of becoming addicted.”
(Levine,:30, World Science Festival).
Adolescent
development is a period of profound change and involves several key elements with
two stages. First, an outward period of fun, growth, and curiosity followed by a
stage of “inner conflict and familial
perturbation [that can lead to] dysfunction, apathy and alienation.”
(Essau, 2008, Pg.3).
While both stages include opportunity and vulnerability, both
necessary in order to navigate to successful adulthood, “vulnerable” aspects can
lead to addiction. The concepts of addiction are not always clear. Internal and
external factors such as environment and personality play major roles; however,
the absolute definition of addiction is difficult.
Addiction can be
physiological (physical body), bio-behavioral (changes in the brain),
compulsion (similar to the D2 experiments with rats), pleasure, impulse, need
and identity.
Albert
Bandura, developmental theorist, studied self-efficacy and social cognition.
His social cognition theory empathizes, “behavior
as being learned symbolically through central processing of response”
(Essau, 2009, Pg. 7) which shows that behavior is learned via observation. Self-efficacy,
one’s belief that they can succeed, promotes changes through “affective, cognitive, choice, and
motivational processes.” (Essau, 2009, Pg. 7).
Both
components are necessary in adolescent development in order to abstain from or
overcome addiction. For example, if one is raised in an environment where drug
use is normalized, they are more apt to use. Add non-motivation, lack of praise
and love and the incidence for drug use and abuse is prevalent when compared to
one raised in an environment where dangers of drugs are taught and praise and
love are practiced.
In both veins, an adolescent must be motivated to not use
and have enough self-efficacy to avoid using. In addition, if one does use,
they must be able to have been taught and learned that they are strong enough
to overcome abuse, dependency and addiction.
Psychosocial
development plays a major role in addiction. “Adolescent mental health problems can be seen to precede addictive
behaviors, [and] addictive behaviors have also been shown to exacerbate mental
health problems.” (Essau, 2009, Pg. 10). Social factors such as peer
pressure, placement in family structure, and how an adolescent deals with
issues, add to developmental challenges.
Neurobiological factors such as
dopamine, as seen in the talk with Dr. Graeme, explains how “neurobiological mechanisms [are] involved in
developing an addiction to drugs.” (Essau, 2009, Pg. 10). These are all
examples of the severity of how substance use disorder begins,
due to an adolescent's lack of experience, lack of knowledge, and/or immature
brain development.
In the BBC production, Teenagers: Secret Life of Growing Up, emotional maturity is reached
“by the age of 16” (BBC, Segment 11,
2016), however, utilizing control of emotions has not yet surfaced. Most
adolescents that develop substance abuse issues occur before the age of 16 when
adolescents learn by observing those around them, from peer pressure and the
need to experiment and take risks.
From the age of five to the age of 18,
adolescents go through horrendous changes that affect an individual on physical,
biological, emotional, neurological and mental scales. These are confusing and
frightening times.
Problem solving skills, self-love, healthy
risk-taking, and self-perseverance are essential tools that must be taught and learned
from family, parents, and caregivers. Unfortunately, most adolescents that are
dependent learn negative behaviors from the same groups of people.
It is
imperative that a child is equipped with positive tools to overcome physical,
biological, emotional, neurological and mental difficulties that arise
throughout adolescence into adulthood in order to combat the future possibility
of addiction.
BBC. (2016). Teenagers: Secret Life of Growing Up. Films Media Group. Segment 11 retrieved from: http://fod.infobase.com.library.esc.edu/p_ViewVideo.aspx?xtid=124986
Essau, Cecelia. (2008). Adolescent Addiction: Epidemiology, Assessment, and Treatment. Print. Chapter One. Pg. 3, 7, 10.
Graeme, Professor. (2012). University of Bristol. Drugs of abuse - what do they do to the brain? Retrieved from 19:54, Best of Bristol Lectures: https://www.youtube.com/watch?v=uKMgt96HGnk
Levine, Amir. (2014). The Teenage Brain Is Primed For Addiction. World Science Festival. :30 and :40 retrieved from: https://www.youtube.com/watch?v=UNAbf3J3lR0