Internet addiction among nursing students: application of latent profile analysis and network analysis

BackgroundInternet addiction is widely reported and heterogeneous among nursing students. However, variable-centered approaches may not fully capture profile differences and core symptom patterns, potentially limiting precise interventions. Therefore, identifying distinct profiles and key symptoms is important for informing effective prevention.ObjectiveThis study aims to identify distinct internet addiction profiles among nursing students, explore the characteristics and core symptoms of these profiles, and investigate the factors associated with their variation.MethodsA cross-sectional survey was conducted among undergraduate nursing students from September to November 2025. Latent profile analysis (LPA) and network analysis were performed to characterize the patterns of problematic internet use across identified profiles.ResultLatent Profile Analysis revealed four distinct problematic internet use profiles: No-Problematic Internet Use Profile (17.895%), Low-Problematic Internet Use Profile (41.957%), Moderate-Problematic Internet Use Profile (26.676%), and High-Problematic Internet Use Profile (13.472%). Multinomial logistic regression identified gender, monthly household income, and physical activity as significant factors associated with profile membership. Network analysis highlighted central symptoms specific to each profile: Health-related problems (RP-IH) and compulsive internet use and withdrawal symptoms (Sym-C & Sym-W) exhibited the highest centrality within the Moderate- and High-Problematic Internet Use Profiles.ConclusionInternet addiction among undergraduate nursing students is a heterogeneous phenomenon that can be categorized into four distinct profiles. Our findings clarify key associated factors and identify central symptoms specific to each profile, potentially providing an empirical basis for nursing educators to develop targeted psychological interventions.

Effect of low-intensity focused ultrasound on hippocampus of alcohol addicted mice: a preliminary study

Alcohol addiction is a chronic relapsing brain disorder characterized by significant neurobiological changes, particularly within the hippocampus, which mediates emotional regulation and reward-seeking behavior. Previous studies have shown that alcohol-induced neuronal injury contributes to withdrawal-associated anxiety and persistent alcohol preference. This study investigated the therapeutic effects of low-intensity focused ultrasound (LIFU) on the hippocampus in a mouse model of alcohol addiction. Twenty-six male C57BL/6 mice were allocated to an alcohol-exposed group (n = 20) and a control group (n = 6). Following a 28-day modeling period, the alcohol group was randomly subdivided into a therapy group and a sham group. The therapy group received LIFU treatment, while the sham group underwent an identical procedure with the ultrasound transducer powered off. After seven days of treatment, the therapy group exhibited less severe anxiety symptoms upon alcohol withdrawal and a reduced preference for alcohol compared to the sham group. The brain-derived neurotrophic factor (BDNF) concentration was significantly lower in the therapy group than in the sham group, but did not differ significantly from the control group. Hippocampal HE staining revealed more pronounced degeneration and apoptosis of granule cells in the dentate gyrus (DG) region in the sham group relative to the therapy group. These preliminary findings suggest that LIFU may modulate alcohol addiction by mitigating hippocampal neuronal injury.

The patterns of relapse and abstinence: using machine learning to identify a multidimensional signature of long-term outcome after inpatient alcohol withdrawal treatment

AimsA machine learning approach to identify a multidimensional signature associated with relapse and long-term outcome in alcohol dependence treatment.DesignIn this observational naturalistic study, inpatients with alcohol dependence received qualified detoxification plus CBT (Cognitive Behavioral Therapy) and were followed up 6-months after discharge to assess abstinence and drinking behavior. Cross-validated multivariate sparse partial least squares analysis (SPLS) was used to investigate the relationship between clinical features and four long-term outcome variables.SettingGermany.Participants152 patients (on average 47.8 years old, 72% male) with alcohol dependence, who received inpatient qualified detoxification plus CBT.Measurements35 clinical features were used to cover all three phases of inpatient treatment (pre-, within-, post-treatment). Among these, sociodemographic characteristics, ICD-10 psychiatric diagnoses, previous detoxification treatments, and somatic measurements as well as inpatient treatment setting such as withdrawal medication, liver ultrasound, further information about the patients´ stay, and post-inpatient care were assessed. The four outcome dimensions included: continuous abstinence, abstinence at follow up, daily alcohol consumption, and days of abstinence after discharge.FindingsSix months after withdrawal treatment 46% of the patients achieved continuous abstinence. Socioeconomic, clinical and somatic features across the treatment timeline were analyzed and summarized into a multivariate signature associated with long-term treatment outcome. Thereby, the SPLS algorithm identified regular completion of withdrawal treatment, higher education, and employment status to be most strongly associated with a positive outcome. Alcohol-related hepatic and hematopoietic damage, number of previous withdrawal treatments and living in a shelter were most profoundly associated with a negative outcome.ConclusionConceiving treatment outcome as a multidimensional signature and moving beyond simple binary classifications of relapse versus abstinence may improve the understanding of relapse pathways and support more individualized treatment strategies.

Prediction of Relapse Using Digital Technology in People in Recovery From Substance Use Disorders: Early Economic Evaluation With a Case Study of the Subreal App

Background: Many people relapse after achieving abstinence in substance use disorders. Health care providers may scan the horizon for new technologies to predict response that allow interventions to be targeted rather than routine. Currently, no such predictive technologies are available in the United Kingdom. The Subreal app is available for use in research contexts, but no clinical data specific to the app are yet available. Early health economic modeling can use data from the literature to explore characteristics essential for the new technology to be cost-effective. This information can guide developers in setting performance targets and pricing and estimating potential cost savings and/or cost-effectiveness for health care providers. Objective: This study was supported by a UK industry funding body to explore the potential of digital technologies such as the Subreal app to offer cost savings or cost-effectiveness for health care providers. We explored the threshold price and clinical effectiveness required to deliver cost savings and cost-effectiveness in 2 subpopulations with substance use disorders in a UK setting. Methods: Deterministic models were used to estimate costs per relapse and quality-adjusted life years over 1-, 5-, and 20-year time horizons for people who have achieved abstinence after treatment for alcohol or opioid misuse. The intervention was a digital technology predicting relapse, provided—in addition to standard care—for 1 year post achievement of abstinence. In Subreal, biomarker data are collected daily through the app, and artificial intelligence–enhanced risk assessment flags patients who require additional support. The comparator was event-driven, reactive response to relapse. Costs and quality-of-life estimates were calculated using Markov models with data from existing published sources. The base-case estimate of 15% reduction in first-year relapse rates was based on a previous study on a similar but simpler digital technology. Results: Digital technologies such as the Subreal app have the potential to be cost-saving from a UK health and social care perspective, especially when used over a longer time horizon. Assuming a reduction of 15% in first-year relapse rates, digital technologies have the potential to be cost-saving, provided that they do not cost more than £300 (US $400.09) and £460 (US $613.47) per patient per annum for alcohol and opioid use disorders, respectively. No cost was included for postalert care, as it was assumed that this could be met within existing resources. Cost savings would be achieved predominantly through a reduction in treatment requirements as fewer people relapse. Price thresholds would reduce correspondingly if a <15% reduction in relapse rates were achieved. Conclusions: Developers of digital technologies that aim to reduce relapse need to focus on the generation of evidence of clinical effectiveness and develop a commercially sustainable pricing model that allows health care providers to benefit from cost savings.

Therapeutic Potential of GLP-1 Receptor Agonists for Smoking Cessation

Glucagon-like peptide-1 (GLP-1) therapies are under investigation for a growing number of neuropsychiatric conditions, including substance use disorders. Cigarette smoking accounts for the largest proportion of substance use-related morbidity and mortality, in part reflecting increased risk for cardiometabolic disease among people who smoke. Given modest quit rates with approved smoking cessation therapies, medications with novel mechanisms of action are needed to expand the available monotherapy and combination treatment options.

How sports betting apps hook users

For most of the last 80 years, sports betting was limited to Las Vegas. But after a 2018 Supreme Court decision loosened regulations on professional sports wagers, it became possible to place bets on games 24/7 — with nothing more than a smartphone and a bank account. 

In 2013, just five years prior to the landmark SCOTUS case, gambling was classified in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) in a new category called “Substance-Related and Addictive Disorders.” This grouped gambling with alcohol use disorder and other addictions. Gambling is also known to have the highest suicide rate of any addiction.

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The Most Effective OCD Treatment Reaches Almost No One: Here’s What We Can Do About It

– Rebecca Deusser, MS, MBA and Sanjaya Saxena, MD

“It took me years to find out that what I was dealing with was OCD!”

This is a phrase all too often repeated by people living with obsessive compulsive disorder. Currently, individuals live with OCD for an average of 7 years (Dell’Osso et al, 2019) before they even receive a diagnosis, all while symptoms may intensify and daily life often becomes increasingly constrained. 

Clinicians, researchers, and advocates have long raised this concern. What has been missing is clear data behind how many people with OCD in the U.S. are missed in clinical settings or are not receiving the most effective treatment.

When the International OCD Foundation undertook this analysis, the scale of the problem became unmistakable. Millions of people in America are currently struggling with OCD without the most effective treatment.

The challenges we detail in our new white paper, America’s OCD Care Crisis: National Findings on the Failure of Effective OCD Treatment to Reach Patients, are significant, but fixable. They are symptoms of structural oversights that can be changed. Effective, evidence-based treatment for OCD exists, and through intentional action, we can dramatically change these unacceptable outcomes for people with OCD.

Where People With OCD Fall Through the Cracks

Well established prevalence rates for OCD indicate that nearly 10 million people in America — roughly 3% (Ruscio et al, 2010; Stein et al,2025; Ringeisen et al, 2025) — will have OCD at some point in their lives. Yet our findings suggest that 75% of them are never even identified, and up to 95% aren’t receiving the most effective treatment for the disorder.

In our analysis, we discovered significant systemic breakdowns at several key points of a patient’s journey: screening, diagnosis, referral, and treatment.

  • Screening and Diagnosis: Receiving a clinical diagnosis is an important step toward recovery as it promotes understanding and opens paths to effective treatment. Yet our findings suggest that this crucial initial step is missing for many millions of people. Of the 10.4 million patient records reviewed in our analysis, only 0.51% received a formal OCD diagnosis, far below the 3% expected prevalence rate. 
  • Referral to appropriate care: After a diagnosis is obtained, a handoff to appropriate care is needed to keep the patient from falling out of the treatment pathway. Here, too, we found an alarming gap within our sample: more than 72% of patients identified as having OCD did not receive a referral for cognitive-behavioral therapy (CBT), the most effective treatment for OCD.
  • Effective Treatment: Decades of research has established Exposure and Response Prevention (ERP) therapy, a specific form of CBT, as the most effective, first-line therapy for OCD. Yet, an astounding 95-98% of people with OCD had not received ERP treatment. Even when people seek help — and even when they are diagnosed — the vast majority never reach the treatment most likely to help them recover.

What We Can Do About It

The breakdowns seen in each step of the care pathway reinforce the focus of IOCDF’s Vision 2030, our five-year strategy to address the systemic barriers that keep effective OCD treatment out of reach.

While the findings are stark, they illuminate many opportunities for change:

  • Identify symptoms earlier by implementing routine OCD screening in primary healthcare and mental health settings.
  • Support clinicians in better understanding and treating OCD by expanding training in assessment, diagnosis, and evidence-based treatment modalities.
  • Help people receive care that works by strengthening adherence to existing professional treatment guidelines.
  • Increase the number of people with OCD who receive effective treatment  by supporting affordable access to ERP and other evidence-based therapies.
  • Let people know they’re not alone by raising accurate public awareness of what OCD really is — and that it is treatable.

Vision 2030 outlines how the IOCDF is committing its resources, partnerships, and expertise toward advancing these priorities — by increasing awareness and community, expanding access to effective treatment, and advancing research. Together, these efforts are designed to work in concert, improving clinical training, implementing screening for early identification, strengthening pathways from diagnosis to care, and increasing the likelihood that people receive evidence-based treatment.

At the same time, the scale of the problem revealed in this report makes clear that progress depends on collective action across the field. Clinicians, health systems, educators, researchers, policymakers, advocates, and people with lived experience all have a role to play. Together, these efforts can help ensure that people with OCD reach effective treatment sooner, reducing years of unnecessary confusion and distress. 

How You Can Help

Join us in building better access to effective treatment for people with OCD:

The current state of treatment for OCD in the U.S. is sobering, but it is not the end of the story. OCD is treatable, recovery is possible, and change can happen as awareness grows and access expands. With continued effort, the gap between how many are struggling and how many receive effective care can begin to close. A brighter future is possible — and we can build it together.

References

  1. Dell’Osso, B., Benatti, B., Grancini, B., Vismara, M., De Carlo, V., Cirnigliaro, G., Albert, U., & Viganò, C. (2019). Investigating duration of illness and duration of untreated illness in obsessive compulsive disorder reveals patients remain at length pharmacologically untreated. International Journal of Psychiatry in Clinical Practice, 23(4), 311–313. https://doi.org/10.1080/13651501.2019.1621348
  2. Ruscio, A. M., Stein, D. J., Chiu, W. T., & Kessler, R. C. (2010). The epidemiology of obsessive-compulsive disorder in the National Comorbidity Survey Replication. Molecular Psychiatry, 15(1), 53-63. https://doi.org/10.1038/mp.2008.94
  3. Stein, D. J., Ruscio, A. M., Altwaijri, Y., Chiu, W. T., Sampson, N. A., Aguilar-Gaxiola, S., Al-Hamzawi, A., Alonso, J., Chardoul, S., Gureje, O., Hu, C., Karam, E. G., McGrath, J. J., Navarro-Mateu, F., Scott, K. M., Stagnaro, J. C., Torres, Y., Vladescu, C., Wciórka, J., Xavier, M., … Kessler, R. C. (2025). Obsessive-compulsive disorder in the World Mental Health surveys. Research Square, rs.3.rs-6090427. https://doi.org/10.21203/rs.3.rs-6090427/v1
  4. Ringeisen, H., Edlund, M., Guyer, H., Dever, J., Carpenter, L., Olfson, M., First, M., Geiger, P., Liao, D., Peytchev, A., Carr, C., Chwastiak, L., Dixon, L. B., Monroe-Devita, M., Scott Stroup, T., Swanson, J., Swartz, M., Gibbons, R., Stambaugh, L., Bareis, N., … Mental Health and Substance Use Disorders Prevalence Study Consortium (2025). Prevalence of past-year mental and substance use disorders, 2021-2022. Psychiatric Services (Washington, D.C.), 76(8), 720–728. https://doi.org/10.1176/appi.ps.20240329

IOCDF Training & Resources for Clinicians

When clinicians have easier access to best practices in OCD diagnosis and treatment, more people can receive effective care. The IOCDF’s Training Institute offers evidence-based programs for clinicians at every stage of practice, including:

  • A robust, on-demand webinar catalog (CE-eligible!) covering fundamentals, modalities, related disorders, and comorbidities. The catalog includes access to the free webinar, OCD Basics. 
  • IOCDF’s Training Institute offers intensive workshops and events, consultation groups, and more for clinicians of every level.
  • Professional Members at the IOCDF join a nationwide network of committed professionals, are eligible for listing on our Resource Directory, and have access to special pricing for Training Institute offerings.

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Social cognitive deficits and altered multi-brain dynamics during problem-solving in heroin abstainers: An fNIRS hyperscanning study

Despite extensive research on the neurobiology of addiction, little is known about how repeated drug use and withdrawal are related to social functioning impairments in humans, a highly social species. This obscures the broader societal impact of drug addiction and limits treatment efficacy. This study examined social cognitive impairment and its multi-brain neural underpinnings during socially interactive problem-solving in heroin use disorder (HUD), and further explored their co-occurrence with protracted withdrawal symptoms.

IOCDF Calls for Reinstatement of SAMHSA Grants, Renewed Commitment to Mental Health Support

The International OCD Foundation is alarmed by the apparent sudden and widespread termination of grants supporting vital mental health and addiction services previously funded through the U.S. Substance Abuse and Mental Health Services Administration (SAMHSA).

These programs provide life-saving services for individuals experiencing acute mental health crises and help prevent symptoms from escalating to emergency or inpatient levels of care.

As detailed in our recent white paper, America’s OCD Care Crisis, 95% of Americans with obsessive compulsive disorder (OCD) are not receiving the most effective treatment. When OCD goes untreated or is treated with approaches that are not evidence-based, individuals face increased distress, functional impairment, isolation, and elevated risk of crisis. Access to trained clinicians and community-based mental health services is essential for helping people remain safe during periods of heightened distress and navigate next steps for treatment.

At a time when so many people with OCD and related disorders already struggle to access appropriate care, reducing support for frontline mental health professionals further weakens an already fragile system.

The IOCDF urges the reinstatement of these grants and continued federal commitment to accessible, evidence-based mental health and addiction services for all who need them.

Contact your congressional representative now to support the reinstatement of SAMHSA grants >>

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