Mark D Griffiths

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Verified

Mark verified their affiliation via an institutional email.

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• BSc, PhD, CPsychol, FRSA, FBPsS, FAcSS
• Distinguished Professor of Behavioural Addiction at Nottingham Trent University

Many items in current problem gambling screens focus on negative consequences of gambling and gambling-related harms. However, few problem gambling screens comprise items that are totally based on actual gambling behavior such as gambling duration, gambling frequency, or gambling late at night. The aim of the present study was to develop and valida...

Background Students in sub-Saharan African countries experienced online classes for the first time during the COVID-19 pandemic. For some individuals, greater online engagement can lead to online dependency, which can be associated with depression. The present study explored the association between problematic use of the internet, social media, and...

Introduction The increased research examining social media addiction with its negative consequences has raised concerns over the past decade. However, little research has investigated the association between social media addiction and executive functioning as well as the mechanisms underlying this relationship. Methods Using a survey, the present...

Background: The aim of the present study was to investigate the relationship between care burden and motivation of COVID-19 vaccine acceptance among caregivers of patients who have experienced a stroke and to explore the mediating roles of social media use, fear of COVID-19, and worries about infection in this relationship. Methods: A cross-sect...

Background: Having a child is important event for families worldwide. Attitudes toward childbearing are influenced by many factors. The aim of the present study was to investigate Iranian women's attitude toward childbearing and its association with generalized trust, social support, marital satisfaction, mental health, and socio-economic characte...

Fan tokens are a form of cryptocurrency that allow owners to participate in various fan-related experiences such as voting on the music to be played during half-time breaks in sporting events. Since 2020, many elite sport teams have issued fan tokens, allegedly as a way to engage with fans and hear their voice. However, fan tokens also raise some c...

Exercise addiction (EA) refers to excessive exercise, lack of control, and health risks. The Exercise Addiction Inventory (EAI) is one of the most widely used tools in its assessment. However, the cross-cultural psychometric properties of the EAI could be improved because it misses three pathological patterns, including guilt, exercise despite inju...

Background The present study aimed to identify sociodemographic characteristics, risky behaviors, type of drug use, and service use variables associated with emergency department (ED) use and hospitalization among people who inject drugs (PWID). Methods Studies in English published from January 1, 1995, to December 15, 2021, were searched for on P...

Although the COVID-19 pandemic impacted individuals who bet on sports, sports betting tipsters (SBTs; i.e., individuals who provide professional tips on the outcome of sporting events) were arguably among the most affected groups. Consequently, the aim of the present study was to explore how SBTs in Turkey were affected by the COVID-19 pandemic, in...

Background Sleep is a complex physiological process during which the body and mind enter a period of rest. For a healthy lifestyle, different cohort groups can be affected in different ways. One such cohort is healthcare workers (HCWs) – an unexplored group in Afghanistan. Therefore, the present study examined the association between a range of so...

Background and aims Studies have shown that gaming disorder (GD) is associated with rumination and poor sleep quality. However, the reciprocal relationship between GD, rumination and sleep quality is unclear. Moreover, the differences between gender and between left-behind experiences in the aforementioned relationship remain unknown. Therefore, th...

In recent years, several European regulators have introduced mandatory player tracking to identify potentially problematic online gambling. The present study’s aim was to investigate the possibility of predicting future high-risk gambling based on a short time window (i.e., the first seven days after the registration for an online gambling site). T...

Introduction: Identifying determinants of emergency department (ED) use and hospitalization among patients with substance-related disorders (SRDs) can improve health services to address unmet health needs. Aim: The present study aimed to identify the prevalence rates of ED use and hospitalization, and their associated determinants among patients...

Background and aim Life satisfaction refers to the perceived satisfaction of individuals concerning various aspects of their lives. The present study investigated the predictive role of sexual-related determinants in life satisfaction among married women. Methods A cross-sectional study was conducted from August to November 2021. A total of 350 ma...

During the COVID-19 pandemic, the fear of being infected, losing relatives, and measures taken to prevent contamination (e.g., lockdowns, quarantining, spatial distancing, etc.) have all increased the risk of depression, anxiety and stress. In the present study, the relationship between psychological distress, meaning in life, and life satisfaction...

Smartphones are part of individuals' daily lifestyles, as are smartphone applications such as dating apps. Previous evidence suggests that high engagement in dating applications can be detrimental to some users' wellbeing. However, much of the published research has relied on cross-sectional studies and self-report measures. Therefore, the present...

Research has demonstrated that some risk and protective factors of gaming disorder (GD) have been identified. However, the interaction of GD with risk and protective factors has rarely been examined from a network analysis perspective. Therefore, the present study examined the relationships between GD, risk factors (i.e., social anxiety and fear of...

Instagram is a popular social network platform that brings benefits to many. However, for a small minority, problematic use may be an issue of concern (i.e., Instagram addiction). This addiction appears to originate from various contexts and can also have psychosocial consequences. The present study investigated the basic psychological needs and ps...

Several studies have examined age differences in affective decision-making utilizing the Iowa Gambling Task (IGT). However, findings are mixed, with some studies reporting impairments due to aging and others showing no age-related differences. The few studies that have explored personality correlates of IGT performance suggest that underlying perso...

In recent years, gambling has evolved and grown substantially with new gambling activities and facilities being introduced, making gambling products and opportunities more available than ever before in Uganda. While the growth of gambling industry is considered to have a beneficial impact on the economy, it is increasingly becoming a social and pub...

In a society that strives for appearance, fitness is increasingly viewed as a means to reach a certain aesthetic ideal, rather than a way to improve health and physical performance. Every day millions of posts appear on social media promoting a visual representation of apparently fit, healthy and 'perfect' bodies. Combining personal accounts, clini...

Considering the prevalence and increased use of online social networking sites (SNSs), the present study investigated the association between visiting SNSs and users' subjective wellbeing. Data were collected from 251 participants and were analyzed using partial least square-based structural equation modeling. The findings showed that there was no...

The present study aimed to investigate the role of attachment styles and gender among different online addictions (social media addiction, online gaming addiction, and internet addiction) among adolescents and young adults via an online survey. The participants comprised 943 Iranian students (440 females) selected by multi-stage cluster sampling. T...

The emergence, development, and maintenance of gaming disorder (GD) is the result of an interplay between gaming-related factors, individual factors, and environmental factors. None of these alone are sufficient to cause a disordered state, but it is the interactive co-occurrence of all these factors, which in some cases leads to GD. The goal of th...

Aim: To investigate the effect of auricular acupressure on the severity of postpartum blues. Methods: A randomized sham controlled trial was conducted from February to November 2021, with 74 participants who were randomly allocated into two groups of either routine care + auricular acupressure (n = 37), or routine care + sham control (n = 37). V...

Background Marital status is a robust correlate of disordered gambling, but few studies have examined the direction of this association. Methods The present study used a case–control design by including all adults receiving their first gambling disorder (GD) diagnosis between January 2008 to December 2018 (Norwegian Patient Registry, n = 5,121) an...

The present systematic review and meta-analysis study aimed to determine sociodemographic characteristics, risky behaviors, mental health disorders, and substance use disorders associated with suicide behaviors including suicidal ideation and suicide attempts among homeless individuals. PubMed, Scopus, Web of Science, and Cochrane Library databases...

Exercise addiction is a term used to describe dysfunctional exercise behavior characterized by the classic symptoms of addictions, which eventually result in physical, psychological, or social harm to the affected individual. While well over 1000 peer-reviewed papers on problematic exercise have been published, very few studies have explored the co...

The present study evaluated the psychometric properties of the Serbian Smartphone Application-Based Addiction Scale (SABAS) and the original English version of the same scale administered to a Serbian-speaking sample. In Study 1, 599 participants completed Serbian SABAS, with 189 having both test and retest data. Results suggested good internal con...

The present paper provides an overview of the possible risks, harms, and challenges that might arise with the development of the esports field and pose a threat to professional esports players, spectators, bettors and videogame players, including underage players. These include physical and mental health issues, gambling and gambling-like elements...

Online gambling is a socially acceptable means of entertainment, but it can also have a negative impact on many areas of life and lead to problem gambling for a minority of individuals. In recent years, gambling operators have increasingly implemented responsible gambling tools to help at-risk gamblers control and limit their gambling. One such too...

Background: Globally, street-involved children and youth (SICY) who work and live on/of the streets are at higher risk of increased psychoactive substances and injecting drug use. Objectives: The present study aimed to identify the prevalence, distribution, sociodemographic factors, and risk-taking behaviors associated with psychoactive substances...

The use of Instagram is becoming increasingly popular among students. Excessive Instagram use (EIU) has become a growing problem that can impact students' lives psychosocially. This study applied uses and gratifications theory (UGT) to explore the impact of social gratification, content gratification, and entertainment along with social presence, a...

Depression is a very common mental health illness characterized by a cluster of signs and symptoms ranging from mood disturbances and sleep or appetite disorders to physical manifestations of the body. The purpose of the present study was to estimate the prevalence of depression and its related factors among Afghan women. A cross-sectional study wa...

The present study's aim was to summarize existing quantitative evidence linking social physique anxiety (SPA) and eating disorders (ED). Eligible studies were searched for up to June 2, 2022 in six databases: MEDLINE, Current Contents Connect, PsycINFO, Web of Science, SciELO, and Dissertations & Theses Global. Studies were considered eligible if t...

Video games are designed to attract the attention of a potentially diverse audience. One of the most popular video game-related content distributor sites is Twitch, which provides daylong access to all kinds of gaming-related content through independent content creators. This platform, compared with YouTube (the world's popular video-based content...

Nomophobia (‘no mobile phone phobia’) has been growing issue worldwide in recent years and has been associated with a number of psychological and behavioral health-related problems. However, few studies have examined nomophobia in Bangladesh. Therefore, the severity and correlates of nomophobia, and the mediating role of smartphone use between Face...

Background: The coronavirus disease 2019 (COVID-19) pandemic and its consequences may impact individuals' mental health. Objectives: The present study aimed to investigate the psychological status of individuals during the COVID-19 outbreak in Iran following the government's social distancing plan. Methods: Data from 1,524 people were collected usi...

The aim of the present study was to explore which psychosocial predictors are associated with different co-occurrence patterns of three different behavioral addictions (i.e., problematic gaming, problematic social media use, and problematic gambling) among adolescents. A total of 2390 Iranian adolescents – 835 males and 1555 females aged between 13...

Although several studies have been conducted in Bangladesh regarding sleep problems during the COVID-19 pandemic, none have utilized a large nationwide sample or presented their findings based on nationwide geographical distribution. Therefore, the aim of the present study was to explore the total sleep duration, night-time sleep, and daily naptime...

Background: During the period of adolescence, several major developmental changes occur that can have significant impact on an individual’s brain structure and functioning through their entire life. The present study examined the association between depression and self-esteem alongside specific sociodemographic factors among school-going adolescent...

Objective: Vaginal atrophy, the second most common complication of menopause, can lead to sexual dysfunction. This study evaluated the effect of a vitamin D vaginal suppository on sexual function in postmenopausal women. Methods: This three-arm randomized controlled trial was conducted between August 2019 and August 2020. The sample comprised 10...

Playing games can be one of the most important activities for children to improve their social problem-solving (SPS) skills. Studies that have examined the empirical evidence of playing games concerning children’s SPS skills have tended to focus on the function of a single game. Therefore, an overview study is needed to generalize the data by the g...

Online activities and problematic online behaviors have recently emerged as important research topics. However, only a few studies have explored the possible associations between these behaviors and morningness-eveningness. The authors examined whether eveningness predicts these distinct problematic online behaviors differently and directly or via...

Background Given that social media use is an increasingly widespread activity among university students, more information is needed to evaluate its potential implications for students’ mental health. Objective The present study assessed the effect of interaction between coping style and social media use on psychological distress and academic perfo...

Facebook is one of the most popular social media platforms. As well as facilitating contact and the exchange of information, the use of Facebook can lead to problematic Facebook use (PFU) among a small number of users. Previous studies have shown the relationship between PFU and early maladaptive schemas (EMSs). Additionally, previous studies have...

Objectives: Previous studies have shown that cyberbullying victimization and perpetration are moderately associated. However, possible underlying factors in this relationship are still unclear. Moreover, less is known regarding the relationship between cyberbullying victimization and problematic social media use. The purpose of the present study wa...

Objectives This study aimed to determine the mediating role of psychological distress and domestic violence in the association of fear of COVID-19 with marital satisfaction and sexual quality of life (QoL) among Iranian women of reproductive age. Methods A cross-sectional study comprising 324 married women was conducted. Online convenience samplin...

The aim of the present study was to investigate social media use metacognitions through the development of a new scale, the Metacognitions about Social Media Use Scale (MSMUS). In addition, the study included measures of problematic social media use (PSMU), gaming metacognitions, and gaming disorder (GD) to test concurrent validity. A total of 2390...

Background Social media use has become an everyday behavior in contemporary life resulting in increased participation. A minority of individuals, especially younger adults, may engage excessively with the medium, resulting in the emergence of problematic social media use (PSMU). One way of assessing PSMU is by administering the Bergen Social Media...

The present study investigated the factors that may be associated with a dysfunctional use of social media use, by exploring the association between adult attachment patterns and problematic social media use and analyzing the sequential mediation of self-esteem, fear of missing out (FoMO), and time spent on social media. A sample of 470 social medi...

Purpose Working from home (WFH) was one of the major changes that occurred in many organizations during the COVID-19 pandemic. This also led to online training being conducted during this WFH period. The present study investigated the role of technology, manager support and peer support on self-efficacy and job outcomes (i.e. training transfer, wor...

Background According to the World Health Organization, approximately 280 million individuals worldwide suffer from depression. One occupational group that is more prone to mental health issues is healthcare workers (HCWs). However, very little is known about the mental health of HCWs in Afghanistan. Therefore, the present study examined depression,...

Background: The present study compared adult usage patterns of online activities, the frequency rate of problematic internet use (PIU), and risk factors (including the psychopathology associated with PIU, i.e., distress and impulsivity) among adults in 15 countries from Europe, America, and Asia. Methods: A total of 5130 adults from Belgium, Fin...

Background: In addition to its potentially harmful physical consequences, coronavirus disease 2019 (COVID-19) can cause various negative psychological consequences for individuals. One cohort likely to have been affected is university students who have had to return and study from their home cities due to the physical closures of universities. Obje...

Background The fear and lack of understanding of mental illness can lead to stigma. The stigma of mental illness affects not only individuals who suffer from it, but also the caregivers. Stigma among caregivers can lead to delay in seeking care, poor adherence to treatment and a high risk of relapse. Caregivers of patients with mental illness are a...

The risk for suicidal behaviors including suicide ideations and attempts among individuals with gambling disorder (IWGDs) is high compared to the general population. Little is known about the interplay of mood disorders, alcohol use disorders, and suicidal behaviors among IWGDs. The study aimed to determine the prevalence, sociodemographic characte...

Cyberbullying is a form of aggression in which electronic communication such as e-mails, mobile phone calls, text messages, instant messenger contacts, photos, social networking sites and personal webpages are used to threaten or intimidate individuals. Cognitive-behavioral therapy (CBT) counselling based on empathic training may reduce cyberbullyi...

Little is known about whether withdrawal-like symptoms manifest when regular pornography users attempt to abstain from pornography. The present study used a randomized controlled design to examine whether (1) negative abstinence effects that may be potentially reflective of withdrawal-related symptoms manifest when a non-clinical sample of regular...

The prevention of problematic online gambling behavior is a topic of major interest for regulators, the gambling industry, and researchers. Many gambling operators approach this issue by using responsible gambling tools. Among such tools, mandatory play breaks are used to interrupt long online gambling sessions, providing “cooling off” periods for...

Background Neuropsychiatric disturbances are common manifestations of dementia disorders and are associated with caregiver burden and affiliate stigma. The present study investigated affiliate stigma and caregiver burden as mediators for the association between neuropsychiatric symptoms of people with dementia (PWD) and caregiver mental health such...

Individuals whose basic needs are naturally satisfied are much less dependent on their environment and more autonomous. Basic psychological needs (i.e., the general motivators of human actions) are significant predictors of online gaming addiction. Moreover, it has been posited that meaning and responsibility in life are at the center of life from...

Background The suicide rate has increased during the pandemic in India. Moreover, several studies, especially press-media reporting suicide studies have been conducted but no systematic review has been attempted in this context. Therefore, the present study systematically investigated the risk factors associated with suicidal behaviors, and the met...

Studies show a relationship between social appearance anxiety, aggression, and behavioral addictions. However, the relationship between social appearance anxiety, aggression, smartphone addiction, and Internet Gaming Disorder (IGD) has not been investigated. The present study used a self-report survey to examine the structural relationships between...

Background: Identifying the determinants of emergency department (ED) use and hospitalization among patients with substance-related disorders (SRD) can help inform healthcare services and case management regarding their unmet health needs and strategies to reduce their acute care. Objectives: The present study aimed to identify sociodemographic cha...

Vaccination can sufficiently ameliorate the coronavirus disease-2019 (COVID-19). Investigating what factors influence vaccine uptake may benefit ongoing vaccination efforts (e.g. booster injections, annual vaccination). The present study expanded Protection Motivation Theory with possible factors including perceived knowledge, adaptive responses, a...

Introduction : Pain control after a cesarean section remains a challenge for healthcare professionals and both pharmacological and non-pharmacological treatment methods can be used to reduce this pain. The present study evaluated the effect of auricular acupressure (applied using the finger) combined with routine care on the short-term pain severit...

Background Suicide behaviors are common among medical students; the prevalence rates might vary across various regions. Even though various systematic reviews have been conducted to assess suicidal behaviors among medical students in general, no review has ever assessed or carried out a sub-analysis to show the burden of suicidal behaviors among Af...

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Background: Work addiction has become a topic of increasing research interest but has been little studied in Italy. Therefore, the aim of the present study was to investigate the associations between work addiction, assessed with a recently validated psychometric scale (i.e., Italian version of Bergen Work Addiction Scale, [BWAS]) and other psychol...

Introduction: The lockdown and stay at home orders implemented by the Indian government to inhibit the spread of COVID-19 disrupted the lifestyle of most individuals in the country. This appeared to result in behavioral changes such as increased internet usage, feelings of loneliness, and disturbance of sleeping patterns. Objectives: The objective...

Background: Most of the documented literature to date has reported that the COVID-19 pandemic is associated with greater distress, anxiety, anger, stress, and agitation among the general public compared to before the onset of the pandemic. Method and study design: A review was done to now the evidence for the antiviral and immune-modulatory propert...

The increased use of smartphones among adolescents has highlighted the need to distinguish between problematic and non-problematic smartphone use. To date, there are a lack of short, easy-to-use, and valid psychometric tools to assess smartphone addiction. The primary aim of the present study was to conduct the first psychometric assessment and eva...

Background: There are a wide range of negative effects associated with both substance use disorders and behavioural disorders and their co-occurrence. Understanding the way in which at-risk populations (e.g., substance-abstinent users) interact with potentially addictive behaviours (e.g., gaming) and substance use-while navigating life stressors t...

Recent research has observed that among the ever-increasing young users of social networking sites (e.g., Facebook), some present problematic use similar to other behavioral addictions. While regular use of Facebook is not systematically associated with mental health disorders, its addictive use has been consistently associated with higher level of...

Personality traits have been extensively studied to understand different behavioral addictions. However, less is known about the relationship of employees’ dark personality traits and work addiction. The purpose of the present study was to examine the associations between the Big Five personality traits (i.e., extroversion, neuroticism, agreeablene...

Background Patients with substance use disorder (SUD) usually report lower quality of life (QoL) than other patients and as much as patients with other mental disorders. The present study investigated variables associated with QoL domains among patients with SUD. Methods Studies in English published before December 1 st 2021, were searched for on...

Background: As a public health issue, non-fatal overdose (NFOD) is highly prevalent among people who inject drugs (PWID). This can lead to an elevated risk of future overdose, causing various harms including possible death. It is essential to improve knowledge concerning this problem and its associated risk factors to inform overdose prevention an...

Background: Evidence suggests that gamers can have varying experiences of disordered gaming behaviours due to coping mechanisms and how they can act as risk or protective factor in the development and/or maintenance of disordered behaviours. A particular area of interest is how this may manifest across different countries. Understanding the interpl...

Divorce, nowadays an increasingly more prevalent life event in Iran, can create poor general health among Iranian women, possibly due to bigger challenges for health-related behaviors. The aim was to explore challenges to achieve health-related behaviors as experienced by divorced Iranian women acting as household-heads. An inductive exploratory de...

Objective The purpose of the present study was to investigate the fear of hypoglycemia (FoH) and its predictors among diabetic pregnant women. Study design Cross-sectional conducted between January to August 2022. Methods In the present study, 250 diabetic pregnant women from Qazvin province participated. Demographic and fertility characteristics...

Background and aims: Internet use has become an important part of daily living. However, for a minority it may become problematic. Moreover, problematic use of the Internet/smartphone (PUIS) has been associated with low physical activity. The present study investigated the temporal associations between three types of PUIS (i.e., problematic smartp...