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Essay on drug addiction psychobiological perspective
Psychology biological approach addiction
Psychology biological approach addiction
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Drug Addiction as a Psychobiological Process
The emphasis is on biological
mechanisms underlying addiction, although some other factors influencing
drug addiction will also be discussed. The presentation is limited primarily to
psychomotor stimulants (e.g., amphetamine, cocaine) and opiates (e.g.,
heroin, morphine) for two reasons. First, considerable knowledge has been
gained during the past 15 years regarding the neurobiological mechanisms
mediating their addictive properties. Second, these two pharmacological
classes represent the best examples of potent addictive drugs, and the
elucidation of their addiction potential can provide a framework for
understanding abuse and addiction to other psychotropic agents. Some
psychologists and sociologists assert that animal studies do not model the
important psychological variables governing drug addiction. They suggest that
psychological processes critical in the etiology of addiction cannot be studied
in animal models and/or that environmental influences important in producing
an addiction cannot be duplicated in animal studies. This position is generally
untenable, and animal models have been developed that accurately represent
the primary processes involved in drug addiction. Support for the validity of
these animal models will emanate from an understanding of the characteristics
and the neural basis of drug addiction summarize...
... middle of paper ...
...endence (i.e., the periaqueductal gray
region; see Figure 2) are not rewarding (Bozarth and Wise 1984). This
neuroanatomical dissociation of reward and physical dependence shows that
opiates can be rewarding without the development of physical dependence.
The interpretation of research identifying the neural basis of opiate reward has
been somewhat controversial, but considerable data suggest that opiates can
activate the same brain reward system as that mediating reward from
psychomotor stimulants. Direct support for this hypothesis comes from a
study showing that ventral tegmental morphine injections can partially
substitute for intravenous cocaine injections (Bozarth and Wise 1986).
According to Leshner, drug addiction is a chronic brain disease that is expressed in the form of compulsive behaviors (Leshner, 2001). He believes that drug addiction is influence by both biological, and behavioral factors, and to solve this addiction problem we need to focus on these same factors. On the other hand, Neil Levy argues that addiction is not a brain disease rather it is a behavioral disorder embedded in social context (Levy, 2013). I believe, drug addiction is a recurring brain disease that can be healed when we alter and eliminate all the factors that are reinforcing drug addiction.
Horvath, T., Misra, K., Epner, A., & Cooper, G. (2017). Biological Approaches to Addiction Treatment: Medications. Centersite.net. Retrieved 11 July 2017, from
Koob, G. F., & Simon, E. J. (2009). The Neurobiology of Addiction: Where We Have Been and Where We Are Going. NCBI, 115-132. Retrieved APRIL 26, 2014, from www.ncbi.nih.nlm.go/pmc/articles/PMC2901107
The multi-causal model of drug abuse takes into account social and individual causes of addiction, both distant and immediate, that lead to a disposition to using drugs, drug use and the social and individual consequences. Why a person becomes addicted to drugs or alcohol is different for everyone. Some are genetically predisposed, some learn it from their environment (i.e. family or friends), and still others use it to avoid a trauma they have experienced. The case history describes a client that had both social and individual causes for her alcohol use and subsequent dependence.
The repeated use of drugs often causes both physical and psychological dependence, as mentioned in an article by the Funk & Wagnalls New World Encyclopedia (“Drug Dependence”). In order for an individual to truly be set free from their addiction, seeking treatment is necessary. Rehab centers are a great place with scientifically proven methods to cure those addicted to drugs. It is important to try to end drug use in our country, rather than allowing it to continue longer than it already has. While funding for rehabilitation facilities could become an issue, drug users may continue their addiction without proper treatment, and therefore those arrested for drug use should be sent to a rehabilitation center instead of prison.
The physical and chemical properties make heroin a desirable drug. It is highly addictive and fast acting, which lure users in. The first time one uses the drug it is said to cause disagreeable feelings and nausea. But following further use it causes a sudden rush in your brain, lasting 1 to 2 minutes, that feels as if it is relieving all the tension one has, followed by a calm and relaxed state that can last a few hours (“Heroin in the Brain”, n.d.). These feelings of satisfaction and ease make this drug ...
The most commonly abused substances are Nicotine, Inhalants, Alcohol, Cocaine, Amphetamines, Prescription medications, Heroin, Ecstasy and Marijuana. 1a(National Institute on Drug Abuse, 2011) Initially, a person may find themselves using substances voluntarily and with confidence that they will be able to dictate their personal use. However, over the period of time that drug use is repeated, changes are taking place throughout the brain, whether it is functionally or structurally. Drugs contain chemicals that enter the communication system of the brain and disturb the way in which nerve cells would typically send, receive, and process information. The chemicals within these drugs will cause a disruption to the communication system by either imitating the brain’s natural chemical messengers or by over-stimulating the brains “reward system” by sending mass amounts of dopamine. As an individual prolongs his or her use of these substances, they may develop an addiction.
There are many biological factors that are involved with the addicted brain. "The addicted brain is distinctly different from the nonaddicted brain, as manifested by changes in brain metabolic activity, receptor availability, gene expression, and responsiveness to environmental cues." (2) In the brain, there are many changes that take place when drugs enter a person's blood stream. The pathway in the brain that the drugs take is first to the ventral tegmentum to the nucleus accumbens, and the drugs also go to the limbic system and the orbitofrontal cortex, which is called the mesolimbic reward system. The activation of this reward system seems to be the common element in what hooks drug users on drugs (2).
Drug abuse is part of everyday life, most of us know someone who is or was abusing drug at some point. A way to simplify a difficult time in our life, we find an exit in a product that numbs our brain to the surrounding. People find addiction through drugs, activities and action that creates chemical reaction within our bodies. Whether you love jumping off the empire state building or inject yourself with a drug, you are looking for a high that your body enjoys. The body creates chemicals which stop our self-control. According to the CDC website, “Deaths from drug overdose have been rising steadily over the past two decades and have become the leading cause of injury death in the United States.” (Birnbaum HG, web).
There are many assumptions of why an individual may use different substances and perhaps go from a “social” user to becoming addicted. Understanding the different theories models of addiction many help in the process of treatment for the addict. Although people in general vary in their own ideologies of addiction when working as a clinician one must set aside their own person beliefs. Typically as a clinician it is best for the client to define how they view their addiction and their view may encompass more than one of the five theories. Some theories suggest genetic and other biological factors whiles others emphasize personality or social factors. In this study three theories are defined and given to three different people with different cultural backgrounds, different ideologies, different experiences, and most importantly different reference point of addiction.
The world involving drug addiction is a taboo topic to many. However, drug addiction is a very real topic that occurs worldwide. The widespread use of drugs is not restricted to the United States, with roughly five percent of the world’s population using in the past few months (Mosher & Akins, 2014). Many scientists, doctors, and specialists study addiction and try to find an explanation for why so many become addicted.
Without contrast, the primary reason for drug abuse in individuals comes from the conscious state of addiction. According to Webster’s, addiction is described as “the fact or condition of being addicted to a particular substance, thing, or activity (Hacker, 2011).” Sure, human nature’s desire to conform to peer pressure might cause one to first try a certain drug, but the euphoric mental states found in drugs mentally trap many individuals into becoming dependent upon these sensations. With that being said, these sensations vary depending on the type of drug used.
Drug abuse and addiction are issues that affect people everywhere. However, these issues are usually treated as criminal activity rather than issues of public health. There is a conflict over whether addiction related to drug abuse is a disease or a choice. Addiction as a choice suggests that drug abusers are completely responsible for their actions, while addiction as a disease suggests that drug abusers need help in order to break their cycle of addiction. There is a lot of evidence that suggests that addiction is a disease, and should be treated rather than punished. Drug addiction is a disease because: some people are more likely to suffer from addiction due to their genes, drug abuse brought on by addictive behavior changes the brain and worsens the addiction, and the environment a person lives in can cause the person to relapse because addiction can so strongly affect a person.
The Journal of Neuroscience Dobler-Mikola, A. Gschwed, P. Gutzwiller, F. Steffen, T. Rehm, J. Uch engagen, A. Feasibility, Safety, and Efficacy of Injectable Heroin Prescription for Refractory Opioid Addicts: a follow-up study. The Lancet, volume 358, pg. 1417-1420. Everitt, B. Robbins, T. (1999) Drug addiction: bad habits add up. Macmillian Magazines, volume 389, pg.
Drug addiction is a very big problem in today’s society. Many people have had their lives ruined due to drug addiction. The people that use the drugs don’t even realize that they have an addiction. They continue to use the drug not even realizing that their whole world is crashing down around them. Drug addicts normally lose their family and friends due to drug addiction.