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)…
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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 →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 →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…
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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…
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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 →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…
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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 →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 →Negative / Null Result ReportOpen accessMedicine
Zhu J, Yi Y, Ma L et al. · 2026 · Italian journal of pediatrics
BACKGROUND: Observational epidemiology studies suggested a relationship between single-carbon metabolism and vitamin levels with autism spectrum disorder (ASD) risk. We aimed to explore the causal relationship between them at the genetic…
View details →Negative / Null Result ReportOpen accessMedicine
Rosales MR, Pulido JC, Sideris J et al. · 2026 · PloS one
Introduction Motor impairments have been reported in infants at elevated likelihood of autism and those later diagnosed with autism. However, empirical studies comparing higher to lower likelihood infants are lacking, limiting our…
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Bouwman V, Pittig A, Engelhard I et al. · 2025 · Preprint
Although exposure-based Cognitive Behavioral Therapy is generally effective for anxiety disorders, many people do not benefit. A better understanding of treatment predictors is required. This study investigated whether the dynamics of…
View details →Negative / Null Result ReportMedicine
Gusmão B, Zürn MK, Topolinski S · 2026 · Cognition & emotion
Individuals attribute a higher truth value to repeated compared to novel information, the well-known truth effect. Also, information that contradicts what we have heard earlier is considered falser than both repeated and completely new…
View details →Negative / Null Result ReportOpen accessMedicine
Nieves-Méndez C · 2025 · Frontiers in human neuroscience
This perspective article explores the transformative potential of brain-Computer Interfaces (BCI) in undergraduate systems engineering programs, a domain characterized by high attrition and a widening gap between rapid technological…
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Alotaibi AM, Alosaimi MH, Orfali RS et al. · 2025 · Brain research bulletin
Hallucinations are often associated with alterations in brain activation, particularly in language-related and sensory processing areas. Existing models suggest different frameworks for understanding the relationship between brain…
View details →Negative / Null Result ReportMedicine
Newton JD, Ellis T, Ruther M et al. · 2026 · Environmental research
Living near green areas with high vegetation may contribute to an active lifestyle, stress reduction, and enhance social cohesion, and consequently may be associated with improved cancer survival. Epidemiologic studies focused on greenness…
View details →Negative / Null Result ReportOpen accessMedicine
Okunoye G, George Samuel C, Abdullahi H et al. · 2026 · Cureus
Gestational diabetes mellitus (GDM) is a common pregnancy complication with significant maternal and neonatal risks, and its prevalence is particularly high in Qatar. Myo-inositol has been proposed as an insulin-sensitizing supplement that…
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Jun S, Bido-Medina R, Oviedo J et al. · 2025 · Preprint
Systemic viral infections with neurotropic potential pose significant global health challenges. The Zika virus (ZIKV) is known for its pronounced neurotropism, with recent infectious clusters raising renewed public health concerns. While…
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Verhelst H, Gerrits R, Karlsson EM · 2025 · Neurobiology of language (Cambridge, Mass.)
Developmental dyslexia is a common learning disability marked by reading and spelling difficulties. While previous imaging studies aiming to elucidate the neurobiological mechanisms of this disorder have reported white matter alterations,…
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Andersson PF, Testori M, Lo Iacono S · 2026 · PloS one
The willingness to engage in costly punishment of free riders (prosocial punishment) is crucial to foster group cooperation and understand public goods provision. While prosocial punishment is common across societies, its motivations…
View details →Negative / Null Result ReportMedicine
Aguado J, Gutierrez L, Forns J et al. · 2025 · American journal of epidemiology
Studying the effect of duration of treatment on prognostic outcomes using real-world data is challenging because only people who survive for a long time can receive a treatment for a long time. Specifying a target trial helps overcome such…
View details →Negative / Null Result ReportMedicine
McLone SG, Coleman CM, Matzke HJ et al. · 2026 · American journal of epidemiology
Firearm violence is a public health crisis in the United States and negatively impacts individuals and communities. We used data from The Healthy Chicago Survey, a citywide survey of 8754 respondents from 2020 to 2021, and police-reported…
View details →Negative / Null Result ReportOpen accessMedicine
Garcia Campos LS, Lempert KM · 2025 · Frontiers in psychology
Introduction Uncertain decisions can be risky (with known probabilities) or ambiguous (with unknown probabilities). Previous studies have found that negative affect can increase risk aversion and ambiguity aversion, but it is unknown if…
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Suberry A, Okun S, Ayalon L · 2026 · The Gerontologist
Background and objectives Ageism often emerges in childhood, yet rigorously evaluated school-based interventions-especially in multicultural settings-are scarce. The study evaluated the efficacy of a 90-min educational intervention to…
View details →Negative / Null Result ReportOpen accessMedicine
Merz LM, von Hohenberg BC, Bergmann NT et al. · 2025 · Science advances
Expanding gray wolf ( Canis lupus ) populations in Europe and North America contribute to increased risks of livestock predation, which can threaten human livelihoods and lead government agencies to target wolves for lethal removal. Public…
View details →Negative / Null Result ReportOpen accessMedicine
Seizer L, Kratzer L, Löchner J et al. · 2026 · Clinical psychology & psychotherapy
Psychotherapy process research increasingly uses intensive longitudinal monitoring to capture dynamic patterns of change in patients. In this study, 283 psychiatric inpatients diagnosed with depression (n = 70), PTSD (n = 148),…
View details →Negative / Null Result ReportMedicine
Hauser I · 2022 · The Journal of the Acoustical Society of America
This paper reconsiders a classic claim about phonetic variability-that speech sounds in larger phonemic inventories should exhibit less within-category variability in production. Although this hypothesis is intuitive, existing literature…
View details →Failed Experiment ReportOpen accessMedicine
de Mattos ESR, Guedes A, Zana Y et al. · 2025 · F1000Research
Background Sensory recovery following digital nerve neurorrhaphy is often incomplete, and strategies to enhance regeneration remain under investigation. Low-frequency transcutaneous electrical stimulation has been proposed as a potential…
View details →Negative / Null Result ReportMedicine
Gonzalez-Nahm S, Griffith E, Maguire RL et al. · 2026 · Childhood obesity (Print)
Objective To assess the longitudinal associations between maternal diet during pregnancy and child adiposity between ages 2 and 12 years. Methods Repeated measures linear regression models with autoregressive covariance were used to assess…
View details →Negative / Null Result ReportOpen accessMedicine
Wei C, Ng VWS, Wei Y et al. · 2025 · BMC psychiatry
AIMS: Preclinical studies have suggested potential anticancer effects of valproate, but clinical evidence is limited and inconclusive. This study aims to reexamine the relationship between valproate use and cancer incidence, using lithium…
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