Definition: To what extent does the study allow us to draw conclusions about a causal effect between two or more constructs? Issues: Selection, maturation, history, mortality, testing, regression towrd the mean, selection by maturation, treatment by mortality, treatment by testing, measured treatment variables Increase: Eliminate the threats, above all do experimental manipulations, random assignment, and counterbalancing.

Reliability and validity

The self-medication hypothesis of addictive disorders derives primarily from clinical observations of patients with substance use disorders. Individuals discover that the specific actions or effects of each class of drugs relieve or change a range of painful affect states. Self-medication factors occur in a context of self-regulation vulnerabilities--primarily difficulties in regulating affects, self-esteem, relationships, and self-care. Persons with substance use disorders suffer in the extreme with their feelings, either being overwhelmed with painful affects or seeming not to feel their emotions at all. Substances of abuse help such individuals to relieve painful affects or to experience or control emotions when they are absent or confusing. Diagnostic studies provide evidence that variously supports and fails to support a self-medication hypothesis of addictive disorders. The cause-consequence controversy involving psychopathology and substance use/abuse is reviewed and critiqued. In contrast, clinical observations and empirical studies that focus on painful affects and subjective states of distress more consistently suggest that such states of suffering are important psychological determinants in using, becoming dependent upon, and relapsing to addictive substances. Subjective states of distress and suffering involved in motives to self-medicate with substances of abuse are considered with respect to nicotine dependence and to schizophrenia and posttraumatic stress disorder comorbid with a substance use disorder.

The Self-medication Hypothesis of Substance Use Disorders: A Reconsideration and Recent Applications

Hardly a family in America has been untouched by mental illness. As many as one third of American adults will suffer a diagnosable mental disorder sometime in their life, and 20 percent have a mental disorder at any given time. Although research on the causes and treatment of mental disorders remains vitally important—and indeed major advances are leading to better lives for increasing numbers of people—much greater effort than ever before needs to be directed to prevention. The Senate Appropriations Committee of the U.S. Congress believed that a strategic approach to the prevention of mental disorders was warranted. The Congress mandated the National Institute of Mental Health to enter into an agreement with the Institute of Medicine (IOM) to prepare an integrated report of current research with policy-oriented and detailed long-term recommendations for a prevention research agenda. The specific tasks of the IOM committee, as negotiated with NIMH and the co-funding agencies, were as follows: • Review the status of current research on the prevention of mental illness and problem behaviors and on the promotion of mental health throughout the life span. This should include an understanding of available research knowledge, research priorities, and research opportunities in the prevention research area. • Review the existing federal presence in the prevention of mental disorders and the promotion of mental health, spanning the continuum from research to policy and services. • Provide recommendations on federal policies and programs of ABSTRACT xi Ab ou t th is P D F fil e: T hi s ne w d ig ita l r ep re se nt at io n of t he o rig in al w or k ha s be en r ec om po se d fro m X M L fil es c re at ed f ro m t he o rig in al p ap er b oo k, n ot f ro m t he or ig in al ty pe se tti ng fi le s. P ag e br ea ks a re tr ue to th e or ig in al ; l in e le ng th s, w or d br ea ks , h ea di ng s ty le s, a nd o th er t y pe se tti ng -s pe ci fic fo rm at tin g, h ow ev er , c an no t b e re ta in ed , a nd s om e ty po gr ap hi c er ro rs m ay h av e be en a cc id en t a lly in se rte d. P le as e us e th e pr in t v er si on o f t hi s pu bl ic at io n as th e au th or ita tiv e ve rs io n fo r a ttr ib ut io n.

Reducing Risks for Mental Disorders: Frontiers for Preventive Intervention Research

Over the last decade, research into "addictive technological behaviors" has substantially increased. Research has also demonstrated strong associations between addictive use of technology and comorbid psychiatric disorders. In the present study, 23,533 adults (mean age 35.8 years, ranging from 16 to 88 years) participated in an online cross-sectional survey examining whether demographic variables, symptoms of attention-deficit/hyperactivity disorder (ADHD), obsessive-compulsive disorder (OCD), anxiety, and depression could explain variance in addictive use (i.e., compulsive and excessive use associated with negative outcomes) of two types of modern online technologies: social media and video games. Correlations between symptoms of addictive technology use and mental disorder symptoms were all positive and significant, including the weak interrelationship between the two addictive technological behaviors. Age appeared to be inversely related to the addictive use of these technologies. Being male was significantly associated with addictive use of video games, whereas being female was significantly associated with addictive use of social media. Being single was positively related to both addictive social networking and video gaming. Hierarchical regression analyses showed that demographic factors explained between 11 and 12% of the variance in addictive technology use. The mental health variables explained between 7 and 15% of the variance. The study significantly adds to our understanding of mental health symptoms and their role in addictive use of modern technology, and suggests that the concept of Internet use disorder (i.e., "Internet addiction") as a unified construct is not warranted.

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The relationship between addictive use of social media and video games and symptoms of psychiatric disorders: a large-scale cross-sectional study

Background
The behaviours of non-suicidal self-injury (NSSI) and deliberate self-harm (DSH) are prevalent among adolescents, and an increase of rates in recent years has been postulated. There is a lack of studies to support this postulation, and comparing prevalence across studies and nations is complicated due to substantial differences in the methodology and nomenclature of existing research.

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International prevalence of adolescent non-suicidal self-injury and deliberate self-harm

The smartphone has many attractive attributes and characteristics that could make it highly addictive, particularly in adolescents. The purpose of this study was to examine the prevalence of young adolescents in risk of smartphone addiction and the psychological factors associated with smartphone addiction. Four hundred ninety middle school students completed a self-questionnaire measuring levels of smartphone addiction, behavioral and emotional problems, self-esteem, anxiety, and adolescent-parent communication. One hundred twenty-eight (26.61%) adolescents were in high risk of smartphone addiction. This latter group showed significantly more severe levels of behavioral and emotional problems, lower self-esteem, and poorer quality of communication with their parents. Multiple regression analysis revealed that the severity of smartphone addiction is significantly associated with aggressive behavior (β = .593, t = 3.825) and self-esteem (β = −.305, t = −2.258). Further exploratory and confirmatory studies ...

Psychological Factors Associated With Smartphone Addiction in South Korean Adolescents

Objective These days, young children are exposed to a wide range of smart devices and their usage of smart devices is rapidly increasing worldwide. However, the use of smart devices by young children has not been studied in detail yet because smart device is relatively recent. The purpose of this study was to investigate the exposure status of smart devices among 2-5 years old children in Korea. Methods Four hundred parents of 2- to 5-year-old children were invited to enroll. Data on demographic information and the frequency of media use, time of media use, age at first use of media was self-reported. Results Among 390 toddlers, 39.3% watched TV almost every day, while 12.0% of children used smartphone on a daily basis. During weekdays, 48% of the children watched TV for over an hour. On weekends, 63.1% of the children watched TV for over an hour. On weekends, 23.4% of children use their smartphones for over an hour. Children using smartphones before 24 months of age were 31.3%. Conclusion Research has shown that TV and smartphones are the most popular digital devices used by toddlers. Most toddlers began using smart devices at 12-24 months. This study provides comprehensive information on children's contemporary use of media.

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Electronic Media Exposure and Use among Toddlers

This study investigated childhood psychopathology and Internet addiction in adolescents. Initial assessment data were obtained from 1998 to 1999, and a follow-up assessment was performed in 2006, when the original subjects entered middle school. Personal information for the 524 male subjects was obtained from the original data. The subjects were evaluated with the Korean version of the child behavior checklist, which was administered to the children’s parents. Demographic and psychosocial factors were also evaluated. Children were reassessed with the self-reported Korea Internet Addiction Scale. Our results indicated that 3.6 % of the subjects had Internet addiction, and revealed a significant relationship between withdrawal and anxiety/depression and future Internet addiction. The results suggest that withdrawal and anxiety/depression during childhood should be considered in the etiology of problematic Internet use in boys. Accordingly, clinicians should consider anxiety/depression and withdrawal during childhood to prevent Internet addiction.

Does Psychopathology in Childhood Predict Internet Addiction in Male Adolescents

The aim of this study was to investigate predictors of adolescence suicidality in a longitudinal study. Additionally, the prevalence of deliberate self-harm behavior and suicide ideation at age 7 and during middle school were examined. Initial assessment data was obtained from 1998 to 2000, and a follow-up assessment was performed in 2006 when the original subjects became middle school students. The addresses and names of 1,857 subjects were located from the original data; they were 910 boys and 947 girls. The subjects were evaluated with the Korean version of the Child Behavior Checklist (K-CBCL), which was administered by the parents of the children, and by various demographic and psychosocial factors. They were reassessed using self reports on the Korea Youth Self Report (K-YSR); in particular, replies to items related to self-harm behavior and suicide ideation were recorded. A logistic regression analysis showed that the factors of gender, economic status, the overall amount of behavior problems, the tendency to internalizing and externalizing problems, somatic problems, thought problems, delinquent behavior, and aggressive behavior were independent predictors of adolescent suicide ideation and self-harm behavior. The importance of total behavior problems suggested that adolescent difficulty is a consequence of an accumulation of various risk factors. Accordingly, clinicians must consider a range of internalizing and externalizing issues, especially overall adaptation, for suicide intervention.

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Childhood predictors of deliberate self-harm behavior and suicide ideation in korean adolescents: a prospective population-based follow-up study.

OBJECTIVE: The aim of this study was to examine the prevalence of Internet addiction in middle school students and to identify associated psychosocial risk factors and depression. METHODS: This study was part of a larger epidemiological study on childhood psychiatric disorders conducted in Osan, a city of Republic of Korea. We used IAS for internet addiction, K-YSR for subjects' emotional and behavioral problems and K-CDI for depressive symptoms. We used the data of n=1217 completed cases. We put on independent variables, which are sex, age, smoking and alcohol experiences, economic status, age of first Internet use, K-YSR and K-CDI score. RESULTS: The subjects consisted of addicted users (2.38%), over users (36.89%) and normal Internet users (60.72%). Attention problems, sex, delinquent problems, K-CDI scores, thought problems, age and aggressive behavior were predictable variables of internet addiction. Age of initial Internet use negatively predicted Internet addiction. CONCLUSION: This result showed similar to other researches about sociodemographic, emotional or behavioral factors related to internet addiction. Generally, subjects with more severe internet addiction had more emotional or behavioral problems. It means that they already have had various difficulties when we found internet addiction of adolescents. Therefore it is necessary to evaluate whether the subjects have any emotional or behavioral troubles and to intervene to prevent internet addiction. Language: en

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Yun Mi Shin

Papers

Psychological Factors Associated With Smartphone Addiction in South Korean Adolescents

Electronic Media Exposure and Use among Toddlers

Does Psychopathology in Childhood Predict Internet Addiction in Male Adolescents

Childhood predictors of deliberate self-harm behavior and suicide ideation in korean adolescents: a prospective population-based follow-up study.

Psychosocial risk factors associated with internet addiction in Korea.