Negative / Null Result ReportMedicine
Hu G, Woodman GF · 2024 · Visual cognition
Previous research suggests that applying anodal transcranial direct-current stimulation (tDCS) to the medial-frontal cortex can improve how quickly subjects learn to make simple discriminations (i.e., red from blue). Here, we tested the…
View details →DOI: 10.1080/13506285.2024.2402747 Replication FailureOpen accessMedicine
Yi K, Zhan Y, Wei A et al. · 2026 · Drug design, development and therapy
Background The optimal analgesia regimen for patients undergoing laparoscopic gastrectomy is still unclear. This study evaluated the efficacy of ultrasound-guided rectus sheath block (RSB) with liposomal bupivacaine in providing sustained…
View details →DOI: 10.2147/dddt.s574724 Negative / Null Result ReportOpen access
Radovich E, Karki S, Das S et al. · 2024 · Preprint
Background Understanding implementation fidelity, or adherence to the intervention-as-intended, is essential to interpreting the results of evaluations. In this paper, we propose a longitudinal, explanatory approach to implementation…
View details →DOI: 10.1101/2024.05.07.24306757 Negative / Null Result ReportOpen accessMedicine
Nilsen K, Kivi R, Laine M et al. · 2024 · Scientific reports
Although evidence of recovery in Antarctic stratospheric ozone has been found, evidence of recovery in Arctic ozone is still elusive, even though 25 years have passed since the peak in ozone depleting substances. Here we have used a…
View details →DOI: 10.1038/s41598-024-75364-7 Negative / Null Result ReportOpen accessMedicine
Lee SY, Shin SJ, Lee J et al. · 2025 · Scientific reports
Patients with open-angle glaucoma (OAG), a chronic visual impairment, are at elevated risk of developing depression. Physical activity (PA) has been associated with benefits for mental health, but evidence is limited regarding its impact…
View details →DOI: 10.1038/s41598-025-28364-0 Negative / Null Result ReportMedicine
Perez-Arce F, Knapp D, Lobo R et al. · 2026 · Social science & medicine (1982)
Background A growing literature suggests that education positively influences cognitive function in later life. However, the magnitude and consistency of this effect across study designs and populations remain open questions. Methods This…
View details →DOI: 10.1016/j.socscimed.2026.119377 Negative / Null Result ReportOpen accessMedicine
Rodenhurst N, Messenger K · 2026 · Developmental science
Previous research into children's comprehension of syntactic structures has investigated early awareness of transitive and intransitive structures amongst monolingual children but research into bilingual children's understanding of the…
View details →DOI: 10.1111/desc.70232 Negative / Null Result ReportOpen accessMedicine
Robins PL, Gilbert JR, Luber B et al. · 2026 · Human brain mapping
A core function of episodic memory is to distinguish between overlapping experiences by converting similar inputs into distinct, non-overlapping representations, a process termed pattern separation. While anatomical models emphasize the…
View details →DOI: 10.1002/hbm.70529 Negative / Null Result ReportMedicine
Dong Y · 2026 · Brain and language
Drawing on interpreting research and intervention studies, this article proposes that the interplay between attentional control (AC) and language task schemas (TSs) effectively explains how language experience may enhance AC, and…
View details →DOI: 10.1016/j.bandl.2026.105785 Negative / Null Result Report
Vázquez-Millán A, Martínez-López P, Romero MR et al. · 2026 · Preprint
Habits are stimulus-driven responses that are produced independently of the current outcome value. They enable efficient actions in familiar contexts while freeing up cognitive resources. Habits are expected to influence behavior after…
View details →DOI: 10.31234/osf.io/zh39t_v5 Negative / Null Result ReportMedicine
Boffetta P, Zaridze D, Świątkowska B et al. · 2026 · Frontiers in oncology
Introduction Exposure to arsenic, cadmium, chromium (VI) and nickel increases the risk of lung cancer; whereas humans are exposed to mixtures, epidemiology studies refer to individual metals/metalloids. Methods We analysed the data of a…
View details →DOI: 10.3389/fonc.2026.1772676 Negative / Null Result Report
Shi C, Wu L, Yang Q et al. · 2026 · Preprint
Abstract Background Orientation impairment is an early and clinically meaningful marker of cognitive vulnerability in older adults and is associated with subsequent functional decline, dementia, and mortality. Although stroke is a…
View details →DOI: 10.21203/rs.3.rs-9092847/v1 Negative / Null Result ReportMedicine
Bevilacqua K, Gemmill A, Jackson D et al. · 2026 · Journal of immigrant and minority health
Latina/e women in the United States (US) experience intimate partner violence (IPV) at similar or lower rates than other women but worse IPV-related health outcomes, perhaps due to barriers to help-seeking. IPV reporting to police is one…
View details →DOI: 10.1007/s10903-026-01877-0 Negative / Null Result ReportMedicine
Martineau AR · 2026 · Current opinion in infectious diseases
Purpose of review This review summarizes findings of recent Phase 3 randomized controlled trials (RCTs) and meta-analyses investigating effectiveness of vitamin D supplementation for prevention and treatment of tuberculosis or acute…
View details →DOI: 10.1097/qco.0000000000001181 Negative / Null Result ReportMedicine
Yang NY, Ke TM, Huang Y et al. · 2026 · Life (Basel, Switzerland)
Background/Objectives : Pancreatic cancer is one of the most lethal malignancies, with poor survival and few established modifiable risk factors. While Helicobacter pylori ( H. pylori ) infection is a known cause of gastric cancer, its…
View details →DOI: 10.3390/life16020284 Negative / Null Result Report
Xu S, Sy LS, Hong V et al. · 2026 · Preprint
Background The Vaccine Safety Datalink (VSD) detected a statistical signal for ischemic events (ischemic stroke or transient ischemic attack) following bivalent mRNA COVID-19 vaccination through prospective surveillance during 2022-2023.…
View details →DOI: 10.64898/2026.05.20.26353716 Negative / Null Result Report
Bar Or M, Schonberg T · 2025 · Preprint
Understanding habit formation in humans remains a fundamental challenge, partly due to the constraints of laboratory-based studies. Thus, this study investigated whether prolonged, real-world engagement with a novel smartphone-based task…
View details →DOI: 10.31234/osf.io/26qkf_v3 Negative / Null Result ReportMedicine
Binder M, Blankenberg AK, Nickel J · 2025 · Ecological economics
A positive relationship between pro-environmental behavior and subjective well-being has been used to argue for a “double dividend”, i.e. the narrative that pro-environmental behavior is beneficial for both environment and individual, when…
Negative / Null Result ReportMedicine
Wang Y, Sha S, Gwenzi T et al. · 2026 · Clinical nutrition (Edinburgh, Scotland)
Background & aims Vitamin D insufficiency and deficiency are common worldwide and linked to adverse health outcomes, including higher all-cause mortality. Two large randomized controlled trials (VITAL and D-Health), conducted in mostly…
View details →DOI: 10.1016/j.clnu.2026.106597 Negative / Null Result ReportOpen accessMedicine
Braun D, Olmer A · 2026 · Frontiers in psychiatry
Background and hypothesis Toxoplasma gondii (TG) exposure and host immunogenetic variation have been implicated in psychosis. Interferon-gamma (IFN-γ) is central to TG control; the IFN-γ +874T/A polymorphism has been linked to variability…
View details →DOI: 10.3389/fpsyt.2026.1771815 Negative / Null Result ReportOpen accessMedicine
Lee P, Li J, Jones BC et al. · 2025 · Evolutionary psychology : an international journal of evolutionary approaches to psychology and behavior
Researchers have suggested that men with more masculine facial characteristics have stronger immune systems but are perceived to be less likely to invest resources in partners and offspring. How women resolve this putative trade-off…
View details →DOI: 10.1177/14747049251376924 Negative / Null Result Report
Hornsby G, Pu C, Badamikar A et al. · 2025 · Preprint
ABSTRACT Introduction While improving water, sanitation, and hygiene (WASH) service delivery in schools supports the Sustainable Development Goals, rigorous trials have recently reported inconsistent effects of WASH in schools (WinS)…
View details →DOI: 10.1101/2025.10.23.25338677 Negative / Null Result Report
Codino A · 2025 · Preprint
The notion of Dark Matter originates from the violation of Virial Theorem in galaxy clusters and the empirical evidence of flat or increasing rotation curves in disk galaxies. From novel advances on basic properties of cosmic rays it…
View details →DOI: 10.20944/preprints202505.1443.v1 Negative / Null Result ReportMedicine
Stilp CE, Winn MB · 2026 · The Journal of the Acoustical Society of America
Identification of speech sounds is influenced by spectral contrast effects (SCEs), the perceptual magnification of spectral differences between successive sounds. SCEs result in the categorization of a target sound being biased away from…
View details →DOI: 10.1121/10.0042237 Negative / Null Result ReportMedicine
Harding JF, Walzer J, Piatt R et al. · 2025 · Contraception
Objectives It is important to identify programs that can work in multiple contexts to support adolescent parents in achieving their reproductive health goals. A randomized controlled trial in Ohio in 2012 found that the Teen Options to…
View details →DOI: 10.1016/j.contraception.2025.111200 Negative / Null Result Report
Ward J, Agbude R, Smees R et al. · 2025 · Preprint
This study examined the concentrations of excitatory and inhibitory neurotransmitters (glutamate and GABA respectively) in two regions of interest (auditory and insular cortices) and a control region (visual cortex) to test the hypothesis…
View details →DOI: 10.31234/osf.io/d49uq_v1 Negative / Null Result Report
Bar Or M, Schonberg T · 2025 · Preprint
Understanding habit formation in humans remains a fundamental challenge, partly due to the constraints of laboratory-based studies. Thus, this study investigated whether prolonged, real-world engagement with a novel smartphone-based task…
View details →DOI: 10.31234/osf.io/26qkf_v2 Negative / Null Result ReportMedicine
Guest H, Plack CJ, Munro KJ et al. · 2026 · International journal of audiology
Objective Adult auditory brainstem response (ABR) amplitudes are employed by both researchers and clinicians, but exhibit substantial between-subject variability, reducing their sensitivity as measures of underlying auditory health. One…
View details →DOI: 10.1080/14992027.2025.2530713 Negative / Null Result Report
Bar Or M, Schonberg T · 2025 · Preprint
Understanding habit formation in humans remains a fundamental challenge, partly due to the constraints of laboratory-based studies. Thus, this study investigated whether prolonged, real-world engagement with a novel smartphone-based task…
View details →DOI: 10.31234/osf.io/26qkf_v1 Negative / Null Result ReportOpen accessMedicine
Nielsen SP, Mathiesen L, Møller P · 2025 · Basic & clinical pharmacology & toxicology
This review examines the association between early life exposure to phthalates in human males and Leydig cell endocrine function. A systematic search was performed in PubMed and EMBASE, identifying 17 studies for analysis. Association…
View details →DOI: 10.1111/bcpt.70035