Mark D Griffiths

Nottingham Trent University | NTU · Psychology Department

Aim: This study aimed to examine the co-morbidity and temporal relationship between substance abuse disorders (SUDs) and gambling disorder (GD). Method: Cross-tabulated census data were retrieved from the Norwegian Patient Registry. The data included the number of patients by year of first-time incidence of GD and/or SUD diagnoses, age and sex from...

The 11th Revision of the International Classification of Diseases (ICD-11) formally recognized gaming disorder as an addictive health disorder like gambling disorder. The ICD-11 assumes that excessive online gaming can lead to functional/clinical impairments and psychological distress among a minority of individuals. The present study investigated...

The present study is the first to examine account-based tracking data of Portuguese online lottery players comprising the gambling activity of all active players over a one-year period (N = 154,585). The main research goal was the identification of groups or segments of players by their engagement levels (high, neutral, low) and to assess preferenc...

The present study sought to provide empirical evidence for the sequential mediating role of social comparison orientation and fear of missing out (FoMO) in the relationship between self-concept clarity (SCC) and problematic smartphone use (PSU) within the framework of the Interaction of Person-Affect-Cognition-Execution (I-PACE) model. A sample of...

There has been an increasing amount of research examining problematic shopping behavior (PSB), often referred to in the psychological literature as "compulsive buying" or "shopping addiction." A popular scale for assessing the risk of PSB is the seven-item Bergen Shopping Addiction Scale (BSAS). To expand our knowledge of the psychometric propertie...

The Smartphone Addiction Scale (SAS) is one of commonly used measurement tools to assess smartphone addiction. However, studies concerning the psychometric properties, invariance, and network structure of the SAS as well as profiles of smartphone addiction are rare in China. Therefore, the psychometric properties of the SAS, its invariance and netw...

Background In online environments, fear of missing out (FoMO) is where individuals become constantly preoccupied with what others are doing online and feel unable to log off in case they miss something. FoMO is a concept associated with the use of online social media (OSM; e.g., Facebook use, Instagram use) and various scales have been developed to...

The present paper reviews recent studies on problematic internet use (PIU) prevalence before and during the COVID-19 pandemic. Several pre-pandemic meta-analyses reported PIU prevalence estimates ranging from 6% to 9.7%. Experts in the field of online addictions speculated that PIU would increase during the pandemic because of increased time spent...

The Internet Disorder Scale-Short Form (IDS9-SF) is a validated instrument assessing internet disorder which modified the internet gaming disorder criteria proposed in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). However, the relationships between the nine items in the IDS9-SF are rarely investigated. The...

The COVID-19 pandemic has profoundly impacted lives worldwide and has led to global vaccination against COVID-19. However, there are concerns about the adverse effects of such vaccines on individuals' health. Therefore, it is important to investigate the association between vaccination and holistic health outcome (i.e., quality of life [QoL]). The...

Objectives: The COVID-19 pandemic has negatively affected the lives of millions of individuals physiologically, behaviorally, socially, and/or psychologically. Moreover, there is now much empirical evidence that mental health problems have increased during the pandemic period and these problems have various consequences. The changes in the mood st...

Ontological Addiction Theory is a metaphysical theory of mental illness which conceptualises psychological suffering in terms of excessive ego-centeredness. This study aimed to develop and validate the Ontological Addiction Scale (OAS) and compare OAS scores with mental health measures. A 31-item prototype scale was developed based on traditional B...

se (A.H.P.) † These authors contributed equally to this work. Abstract: The rapid spread of the coronavirus disease 2019 (COVID-19) has led to high levels of fear worldwide. Given that fear is an important factor in causing psychological distress and facilitating preventive behaviors, assessing the fear of COVID-19 is important. The seven-item Fear...

University students, especially those in their first year, not only face challenges related to their personal life but also to their academic performance. Such unfavorable conditions predispose them to psychological illnesses such as depression and anxiety. The present study surveyed first-year undergraduate students to assess the prevalence of dep...

University students (especially first-years) not only have to cope with their academic curriculum but also issues such as being away from the home environment and living independently for the first time. Those who do not adapt quickly to these new conditions are likely to be susceptible to physical and psychological vulnerabilities. The present stu...

Although many previous studies have examined factors associated with depression, there has been a lack of studies examining the role of external shame and lack of emotion regulation. Therefore, the present study examined these potential risk factors alongside other risk factors in a group that may be more prone to depression (i.e., married Muslim m...

Research has consistently demonstrated an association between depressive disorders and behavioral addictions. However, the relationship between depression and exercise addiction has rarely been investigated. The present study examined the relationship between self-reported depression and exercise addiction symptoms. A sample of 691 Spanish undergra...

Gambling, like many other leisure activities, has been greatly affected by the novel coronavirus disease 2019 (COVID-19) pandemic. The present study investigated the behavior of a sample of online casino gamblers before and after the COVID-19 pandemic was announced in March 2020. The authors were given access to behavioral tracking data of a repres...

The COVID-19 pandemic has greatly affected the mental health of individuals due to severe changes in their normal life routines. These changes might give rise to stress-induced factors and result in developing maladaptive behaviors. Therefore, the present study tested an explorative sequential mediation model regarding the COVID-19 pandemic as a gl...

Online gambling has significantly altered the situational and structural characteristics of gambling products, to the extent that online gamblers might be substantially different from traditional offline gamblers. A growing body of literature has identified the evolving features of online gambling and the individuals who engage in it. However, beyo...

Aim: To examine the role of demographic factors, mindfulness, and perceived stress on resilience among nurses. Background: Resilience is an important attribute in the nursing profession although factors affecting it are very diverse. Knowing these factors may help in enhancing nurses' resilience and their subsequent quality healthcare delivery....

Background Healthy sex can be affected by cognitive schemas activated in the sexual context (CSASCs) and early maladaptive schemas (EMSs). Cognitive schemas are the nuclear structure of the cognitive system which facilitate the interaction between individuals and their environments. CSASCs are emotional and behavioral responses in the sexual contex...

It is estimated that 16.8 million in Spain (41% female) are involved in gaming, and approximately 8.3% of Spanish gamers are problematic gamers (i.e., endorsing five or more of the nine criteria for Internet Gaming Disorder [IGD]). Given the high prevalence of IGD in Spain, this study evaluated construct validity and concurrent validity of the Span...

Structural characteristics of games have been regarded as important aspects in the possible development of problematic gambling. The most important factors along with individual susceptibility and risk factors of the individual gambler are the structural characteristics such as the speed and frequency of the game (and more specifically event freque...

Türk ve İngiliz çocukların değer algılarını çeşitli değişkenlere göre incelemeyi ve çocuklar tarafından tercih edilen geleneksel ve dijital oyun türlerinin onların değer algılarını ne düzeyde yordadığını belirlemeyi amaçlayan bu araştırmada karma araştırma desenlerinden baskın durum deseninden faydalanılmıştır. Araştırmada nicel yaklaşım ağırlıklı...

Little is known about the psychological consequences of the recently increased utilization of videoconferencing, which has enabled life to proceed as close to normal as possible during the COVID-19 pandemic. To understand the psychological consequences of this recent global lifestyle change in different populations, the psychometric validation of t...

A lot of previous research has highlighted the negative consequences of Internet addiction. However, relatively few is known about the underlying mechanism for Internet addiction among college students in relation to family function. The present study explored the relationship between family function and Internet addiction among college students, a...

Over the past two decades, many problematic/excessive behaviours have increasingly been conceptualized as addictions due to their similarity with more traditional psychoactive substance addictions. The primary aim of the present study was to simultaneously examine the factor structure of three psychoactive substance addictions (alcohol use, cigaret...

The effects of cognitive behavioral therapy for insomnia (CBT-I) have consistently been shown to improve insomnia symptoms and other health-related outcomes, but the effects on QoL have been inconsistent. Many factors including the type CBT-I delivery and type of instrument used to assess QoL make the topic complex. The present systematic review an...

Social problem-solving is a skill that needs to be developed starting from an early age in order to cope with the problems encountered in all areas of individual's lives. Studies trying to explain the influence of children's games (including videogames and more traditional games) on social problem-solving skills examining only a single game are arg...

Background: The COVID-19 pandemic has negatively impacted mental health, contributing to increase the feeling of loneliness, the psychological distress, and the gaming involvement. Despite accumulating data in the field of gaming, the research examining the psychological determinants of gaming severity, especially in the unique circumstances of COV...

[This corrects the article DOI: 10.1016/j.heliyon.2020.e05135.].

Background and aims Problematic exercise (PE) has mainly been assessed with self-report instruments. However, summarized evidence on the reliability of the scores derived from such instruments has yet to be provided. The present study reports a reliability generalization meta-analysis of six well-known self-report measures of PE (Commitment to Exer...

Objectives Suicidal ideation is a major risk factor for suicide and can negatively affect self-care and health behaviors among the older adults. There are limited data on the prevalence and risk factors of suicidal ideation among the older population during the COVID-19 pandemic. The aim of the present study was to examine the prevalence and risk f...

Epidemiological and phenomenological studies suggest shared underpinnings between multiple addictive behaviors. The present genetic association study was conducted as part of the Psychological and Genetic Factors of Addictions study (n = 3003) and aimed to investigate genetic overlaps between different substance use, addictive, and other compulsive...

Background: Sleep is a vital physiological process regulated by the circadian clock and homeostatic mechanisms. Shift work is necessary to ensure continuity of healthcare provision. Worldwide, nurses work night shifts on a rotational or permanent basis. Objective: To analyse the impact of circadian rhythm disruption due to night shift work on th...

Background The COVID-19 pandemic has negatively impacted psychosocial well-being and mental health of students across the world. Although students are vulnerable to depression and suicidal ideation, few studies have been conducted in Uganda. This study aimed to determine the prevalence of depression and suicidal ideation, and associated factors amo...

Introduction: The COVID-19 outbreak and related lockdowns brought substantial changes in people’s lives and led to concerns about possible increases of addictive behaviors at the initial stages of the pandemic. To examine these concerns, the aim of the present study was to assess longitudinal changes in addictive and problematic behaviors (i.e., pr...

Background and aims Individuals with schizophrenia may often experience poor sleep, self-stigma, impaired social functions, and problematic smartphone use. However, the temporal relationships between these factors have not been investigated. The present study used a longitudinal design to examine potential mediating roles of poor sleep and self-sti...

Common mental health problems are regarded as public health concerns, and can contribute to risky behaviors such as suicide among university students in extreme cases. However, there is a lack of studies concerning such issues in Bangladesh. The present study aimed to fill this knowledge gap by investigating the prevalence and associated risk predi...

Eating disorders and body image disturbance are known to result in unhealthy consequences. When attempting to understand the etiology and management of these disorders, sociocultural models of body image disturbance and disordered eating have been predominant. The objective of the present study was to develop and validate the Internalization of Soc...

Player protection and harm minimization have become increasingly important in the gambling industry along with the promotion of responsible gambling (RG). Among the most widespread RG tools that gaming operators provide are limit-setting tools that help players limit the amount of time and/or money they spend gambling. Research suggests that limit-...

The dearth of evidence related to cultural and gender variations of established associations between Internet Gaming Disorder (IGD) and other psychopathologies has been highlighted. Accordingly, the present study examined the association between depression and disordered gaming behaviors, while considering cultural perspectives of vertical individu...

In the UK and other countries in the world, the volume of gambling advertisements is increasing, as is the popularity of online sports betting. While there is increasing research examining the content of such advertising, there is little research examining what gamblers themselves think about such advertising. Consequently, the aim of the present s...

The aims of this study were to investigate stability of problem gambling between 20 and 24 years of age, and the antecedents and consequences of problem gambling at age 20 years. Young adult participants in the Avon Longitudinal Study of Parents and Children (ALSPAC) completed computer-administered gambling surveys on paper, or online. Responses to...

Over the past two decades, research into Internet Gaming Disorder (IGD) has markedly increased due to worldwide spread of online videogames. The reasons and motivations for playing greatly contribute to its popularity. Escapism and avoidance coping strategies have been studied extensively and conceptualized as motives to play. A growing research ba...

The aim of the present study was to ascertain the levels of possible internet addiction within fantasy football (FF) (soccer) participants and the characteristics of the participants within this group. An online survey of questions regarding characteristics of regular FF participants and consumption of FF-related content was posted on FF internet f...

Background Suicide remains the leading cause of death among university students often resulting from multiple physical and psychological challenges. Moreover, suicidal behaviours among students appear to have increased due to the COVID-19 pandemic according to some studies. Objective To explore the prevalence and associated factors for suicidal id...

Background The causal relationships between two specific types of problematic use in internet-related activities [i.e., problematic social media use (PSMU) and problematic gaming (PG)] and psychological distress remain controversial. The present study investigated the temporal relationships between PSMU, PG, and psychological distress (i.e., anxiet...

Chen IH, Wu PL, Yen CF, et al. Risk Manag Healthc Policy. 2022;15:435–445. Page 437, Materials and Methods, Participants and Recruitment Procedure, Taiwanese Participants section, last sentence, the text “(IRB ref: KMUHIRB-EXEMPT(I)-20200119)” should read “(IRB ref: KMUHIRB-EXEMPT(I)-20200019)”. Page 443, Ethics Approval and Informed Consent sectio...

Background Gaming addiction has become a topic of increasing research interest worldwide but little research has been carried out in Pakistan. Aims The present study assessed the prevalence of gaming addiction among a Pakistani sample of adults in the general population. It also explored the effects of online gaming addiction upon sleep quality....

Backgrounds The range of theoretical conceptualizations of problematic exercise in psychometric assessment instruments makes it difficult to identify the components that define this phenomenon. A better understanding of the underlying components of problematic exercise may contribute to progress toward providing scientific evidence that allows for...

Exercise addiction is a morbid-compulsive behavioral pattern characterized by a loss of control over exercise and which results in major detrimental consequences in the affected individual's life. Although the condition is not formally recognized in official psychiatric texts, exercise addiction can lead to clinical impairment of everyday activitie...

Background: The severity of COVID-19 remains high worldwide. Therefore, millions of individuals are likely to suffer from fear of COVID-19 and related mental health factors. Aims: The present systematic review and meta-analysis aimed to synthesize empirical evidence to understand fear of COVID-19 and its associations with mental health-related p...

The role of personality traits in the development of addictive use of different online activities has been extensively demonstrated in the previous studies. One new type of online activity is the watching of mukbang (the South Korean term for “eating broadcasts”). However, very little is known about addictive mukbang watching (AMW) and its relation...

In recent years, various novel responsible gambling (RG) tools have been implemented to aid harm-minimization. One such RG tool has been the implementation of enforced mandatory play breaks. Despite many responsible gambling operators using mandatory play breaks, only three previous studies have examined their efficacy and the findings were mixed....

Purpose: The percentage of individuals who were fully vaccinated against COVID-19 was 53% worldwide, 62% in Asia, and 11% in Africa at the time of writing (February 9, 2022). In addition to administrative issues, vaccine hesitancy is an important factor contributing to the relatively low rate of vaccination. The Motors of COVID-19 Vaccination Acce...

Exercise addiction (EA) has been described as a condition of psychological dysfunction characterized by excessive and obsessive exercise patterns, show withdrawal symptoms when unable to exercise, and experience numerous conflicts and other negative consequences in their social and professional lives, due to the extremely high volumes of exercise....

Background Unpleasant experiences of dysmenorrhea can lead to increased anxiety. The anxiety associated with dysmenorrhea is a pain-related anxiety which might reduce the efficacy of medication as well as enhance the perception of pain. The present study evaluated the efficacy of eye movement desensitization and reprocessing (EMDR) in reducing anxi...

The present study investigated the association between autism and problematic internet use (PIU) and gaming disorder (GD). A systematic literature search was conducted in accordance with PRISMA guidelines. A total of 2286 publications were screened, and 21 were deemed eligible for inclusion in the review. The majority of the studies found positive...

The original article has been corrected

Filicide-suicide is an area of growing interest in the field of forensic psychiatry. Using multiple media reports, the present report describes a case of filicide-suicide in Bangladesh in which a 55-year-old father killed his 14-year-old autistic son by hanging, and then hung himself. The main reason for the suicide appeared to be depression and st...

Research into normative sexual interests (e.g., paraphilias, fetishes, and unusual sexual practices) mainly collect qualitative data because of the low occurrence of such behaviors. Moreover, the majority of studies using qualitative data have focused solely on sexual practices as they occur in 'real-life' and have neglected sensory aspects of sexu...