Alexithymia and Drug Addiction: Is There a Missing Link?

Abstract

Introduction Although initially alexithymia has been associated with psychosomatic disorders, alexithymic features can be found in other groups of patients. Neuroses of character, drug addiction, sexual perversions, patients with major affective disorder, post-traumatic disorders, psychopaths or antisocial personalities, patients with eating disorders, alcoholism and other forms of abuse and dependence of psychoactive substances, and narcissistic personality disorder. 1-6 That is, frameworks in which access to the psychic elaboration of conflicts and internal tensions seems to be compromised. Alexithymia is a multidimensional concept associating an emotional component focused on the difficulty in identifying and describing feelings and a cognitive one centered on the use of a concrete and poorly introspective way of thinking. Particularly in drug addicts, the alexithymic characteristics manifest themselves through a chronic inhibition of the self, which is turned to itself, only related to the environment through drugs. 7 Inappropriate to verbalize appropriate affections, drug addicts tend to be hypochondriacally concerned with the sensations of the body that accompany the awakening of emotions and with an imperative need to block themselves by ingesting psychoactive substances. 8 Krystal 9 concluded that without a cognitive aspect of emotion, such as the expressive component and the capacity for self-reflection, drug-dependent subjects are unable to recognize that they are gaining experiences through feelings just as they are incapable of to identify them. Taylor et al. 10 admit that depressive suffering may contribute to a component of state-dependent alexithymia, but understands that the results around high rates of alexithymia, among drug-dependent individuals, in a stable phase of rehabilitation programs and with prolonged abstinence periods, strongly suggest the simultaneous existence of a structural trait. As Krystal 9 explains, psychoactive substances are used with a pharmacological meaning, to manipulate affective states of individuals, and as an instrument to temporarily acquire self-esteem and self-regard. According to Wurmser, 11 individuals prone to substance dependence seem to give up the ability to experience their affective world, both intrinsically and extrinsically. Based on the Toronto Alexithymia Scale (TAS and TAS-20), several authors found significant rates of alexithymia among drug addicts: 50.4% in a sample of mixed substance abusers; 12 50% in a group of recently abstinent drug abusers; 13 66% in a group of 87 heroin addicts who were abstinent 22 months ago; 14 42% in a sample of 204 substance-dependent patients who completed the TAS during their first week of hospitalization; 15 48% in a sample of 60 alcoholics, whose mean abstinence time was 22 months (interestingly, participants with less abstinence time showed higher levels of alexithymia); 16 81% in a sample of 32 young drug addicts (with an average of 6 years of heroin and / or cocaine use); 7 in an expressive sample of 2297 middle-aged men, Kauhanen et al. 17 found a close association between alexithymia and alcohol consumption. More recent studies report that rates of alexithymia in the general population are estimated to range between 6 and 10 %, 18,19 but alexithymia is more frequently observed in individuals with substance-use disorders. As many as 78 % of individuals with alcohol-use disorders have been reported to have some level of alexithymia, 20 with percentages typically in the range of 45 to 67%. 21 Alexithymia has also been associated with a family history of alcoholism. 22 Individuals with illicit drug use disorders also frequently exhibit alexithymia, with 42 % in one study and 50 % in another meeting the criteria for alexithymia. 15 When compared to non-addicted individuals, those with substance-use disorders more frequently exhibit alexithymia. 23 Alexithymia is also frequently seen in participants who are undergoing drug abuse treatment, 24 and research has suggested that alexithymia itself may be a difficult characteristic to change. Although there are longitudinal studies exploring the relationships among alexithymia, drug addiction and associated psychopathology, they have been going on for quite limited periods of time: 12 3 weeks: 25 4-6 weeks: 26 12 weeks. The time factor is fundamental, because there are difficulties to diagnose the disturbance, as well as a prolonged evolution of most of the treatment processes. In the samples from the three studies cited, the scores obtained on the TAS-20 remained stable over the referred periods. Thus, it is important to note that despite the short duration of these prospective studies, the results support the view that alexithymia is not merely a secondary phenomenon to Abstract Alexithymia is a personality construct characterized by the inability to identify and describe emotions. The core characteristics of alexithymia are a marked dysfunction in emotional awareness, social attachment, and interpersonal relating. Furthermore, alexithymics have difficulty in distinguishing and appreciating the emotions of others, which is thought to lead to unempathic and ineffective emotional responding. Alexithymia is prevalent in approximately 10% of the general population and is known to be comorbid with a number of psychiatric conditions. Research shows that it is common among individuals with substance use disorders, suggesting that it is a trait that may contribute to substance dependence. This paper will review alexithymia as it relates to substance use and substance use disorders, considering its potential role in the maintenance and treatment of these disorders. Citation: Teixeira RJ. Alexithymia and drug addiction: is there a missing link?.