ADHD in adults and children

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Attention-deficit/hyperactivity disorder (ADHD) is the most frequently diagnosed neurobehavioral disorder in children and young adults (Schilling, Walsh & Yun, 2011). Though there is a breadth of research on the topic, the fact that individuals with ADHD have to overcome many difficulties throughout their life, like failing to inhibit inappropriate actions that can otherwise lead to antisocial behavior, severe injuries and in many cases end with imprisonment with 40-70% of detainees being diagnosed with ADHD (Rösler et al. 2004, as cited by Schilling, Walsh & Yun, 2011), suggests that there is still necessity to discuss the dominant explanations for this disability. The following essay is going to briefly state the definition of ADHD according to the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), it will then outline and evaluate the present genetic and evolutionary position on ADHD. The DSM-5 describes ADHD as a disorder that is characterized by constant inattention and/or hyperactivity-impulsivity appearing in numerous situations more regularly and severely than is usual for individuals in the same developmental stage. There are three main types of ADHD; the first type is the predominantly inattentive type. Individuals being diagnosed with this form of ADHD show difficulty to follow conversations or instructions and are easily distracted. The second type of ADHD is the predominantly hyperactive-impulsive type, which manifests in restlessness and impulsivity. The third type of ADHD is a combination of both (Schilling, Walsh & Yun, 2011). For the sake of succinctness the author is not going to discuss each subtype separately, but rather provide a general account on the combined type of ADHD. The precise causation o... ... middle of paper ... ...evidence also showed that ADHD is polygenic with many different genes being involved. Yet, there is still confusion about the question which genes can be associated with ADHD. The contradicting findings suggest that ADHD is genetically complex and more molecular genetic studies are necessary to provide a more sophisticated account on the matter. Nevertheless, environmental factors seem to have a profound influence on the expression of the genes that cause ADHD. An evolutionary advantage of ADHD might exist, however the evidence points in a different direction. The provided studies showed that individuals diagnosed with ADHD were more likely to exhibit behavior that is not of much use to an academic environment and can lead to conflicts with the law enforcement, which might indicate that ADHD is in the view of a modern society clearly a disability with no upside.

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