Negative / Null Result Report
Bading KC, Béna J, Barth M et al. · 2026 · Preprint
Evaluative conditioning (EC) refers to a change in the evaluation of a conditioned stimulus (CS) following its pairing with a positive or negative unconditioned stimulus (US). Theories of EC commonly assume that such effects depend on…
View details →DOI: 10.31234/osf.io/twuh4_v1 Negative / Null Result ReportMedicine
Gomez-Suarez R, Lin E, Gershon E et al. · 2026 · Journal of pediatric gastroenterology and nutrition
Objectives To evaluate the clinical utility of the simplified colon transit protocol of radiopaque markers (SROM) in pediatric functional constipation (FC). Methods Retrospective study of children meeting Rome IV criteria for FC undergoing…
View details →DOI: 10.1002/jpn3.70428 Negative / Null Result ReportMedicine
Jang M, Lee KH, Shin J et al. · 2026 · Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology
Adolescent depression differs from adult depression in neurobiology and treatment response. Although resting-state functional connectivity (rsFC) of the default mode network (DMN) has been linked to treatment response in adults, its value…
View details →DOI: 10.1038/s41386-026-02442-x Negative / Null Result ReportMedicine
Perkins ER, Flum MW, Plate RC et al. · 2026 · Journal of personality disorders
Psychopathy involves disruptions in affiliation and threat sensitivity, but these are hard to disentangle behaviorally. This preregistered study (independent sample N s = 175 and 173) used clinical-forensic and transdiagnostic measures…
View details →DOI: 10.1521/pedi.2026.40.2.166 Negative / Null Result ReportOpen accessMedicine
Grossmann T, Miller H, Allison O · 2026 · Developmental science
Positive affect (PA) is integral to health and development, yet its early origins remain largely unexplored. In this pre-registered study (N = 78), we investigated whether infant-specific biological and social-behavioral factors predict PA…
View details →DOI: 10.1111/desc.70192 Negative / Null Result ReportOpen accessMedicine
Zournatzidis P, Vorria P, Krana E et al. · 2026 · Personality and mental health
Mentalizing is a socio-cognitive capacity that develops within early attachment relationships, but institutional care may disrupt this process. Although adoption significantly improves developmental outcomes, it remains unclear whether…
View details →DOI: 10.1002/pmh.70084 Negative / Null Result ReportMedicine
Kumar AA, Lim HL, Saffari SE et al. · 2025 · Journal of neurotrauma
Acute traumatic central cord syndrome (ATCCS) is the most common form of incomplete spinal cord injury. Treatment recommendations for ATCCS patients are largely from North America, and their applicability to Asian populations remains…
View details →DOI: 10.1177/08977151251406611 Negative / Null Result ReportMedicine
Cakici O, Aykac K, Seyrek BE et al. · 2026 · The American journal of tropical medicine and hygiene
Tularemia is a rare zoonotic infection with marked geographic clustering and long interepidemic periods. Pediatric data, particularly those on host immune responses during active disease and treatment, remain scarce. The authors aimed to…
View details →DOI: 10.4269/ajtmh.26-0084 Negative / Null Result ReportMedicine
Dunn CB, Farrell AD · 2026 · Research on child and adolescent psychopathology
Prior research has identified externalizing and internalizing pathways to adolescent-onset substance use, but few studies have considered how psychopathology is associated with the development of polysubstance use during early adolescence.…
View details →DOI: 10.1007/s10802-026-01451-0 Negative / Null Result ReportMedicine
Anderson AJ, Rodriguez CM, Henson JM · 2026 · Child psychiatry and human development
Parental psychological distress is a commonly examined risk factor for the emergence of child problem behaviors, but the factors that contribute to that relationship-such as limited parental resources like greater social support and coping…
View details →DOI: 10.1007/s10578-026-01997-6 Negative / Null Result ReportMedicine
Gallardo VJ, Caronna E, Rosell-Mirmi J et al. · 2026 · The journal of headache and pain
Background It remains unclear whether high-frequency migraine is associated with objective markers of possible neuroaxonal injury and potential expression of neurodegenerative hallmarks. We compared serum and MRI biomarkers in…
View details →DOI: 10.1186/s10194-026-02392-1 Negative / Null Result ReportMedicine
Abel DB, Fulford D, Fiszdon JM · 2026 · The Journal of nervous and mental disease
Aim Researchers have studied mechanisms underlying social motivation in schizophrenia, including reward learning, hostile attribution bias, and defeatist performance beliefs. Yet, existing work is limited by the use of laboratory paradigms…
View details →DOI: 10.1097/nmd.0000000000001872 Negative / Null Result ReportMedicine
McCabe SC, Ramirez K, Dyer S et al. · 2026 · American journal of audiology
Purpose Follow-up care after hearing aid fitting is recommended, yet clinicians lack data on the expected number of follow-up appointments needed and which patients require more support. This study aimed to characterize follow-up service…
View details →DOI: 10.1044/2026_aja-25-00240 Negative / Null Result ReportMedicine
Fernández Pérez ER, Humphries SM, Lynch DA et al. · 2026 · Annals of the American Thoracic Society
Rationale Quantitative CT using multiple instance learning (MIL)-usual interstitial pneumonia (UIP) classifier and data-driven textural analysis (DTA) provides objective and reproducible measurements of disease pattern and extent,…
View details →DOI: 10.1093/annalsats/aaoag116 Negative / Null Result Report
Wienhold S, Volkmer N, Denk B et al. · 2026 · Preprint
Abstract Trust enables cooperation, but it also exposes individuals to social risks. The physiological dynamics of trust in real-world interactions remain poorly understood. In this study, we investigated whether interpersonal…
View details →DOI: 10.21203/rs.3.rs-8927804/v1 Negative / Null Result Report
Onyedire NG, Ikenegbu T, Edward PU et al. · 2026 · Preprint
Abstract Background University students with physical impairments often face burnout in mainstream settings due to stigma, social barriers, and inadequate support. While social anxiety may heighten risk, self-concept and social support…
View details →DOI: 10.21203/rs.3.rs-8881107/v1 Negative / Null Result Report
Kopatz M, Wagner W, Neuendorf C et al. · 2026 · Preprint
Class composition is a key contextual factor in students’ academic development. Prior research has mainly focused on class mean achievement, yet less is known about other composition characteristics, possible differences for students with…
View details →DOI: 10.31234/osf.io/zkg9r_v1 Negative / Null Result ReportMedicine
Berkley S, Hoyt LT, Zeiders KH et al. · 2026 · Journal of research on adolescence : the official journal of the Society for Research on Adolescence
This study used multilevel growth modeling to examine associations between ethnic-racial socialization (ERS) and sociopolitical development among undergraduates of color (N = 125) attending predominantly White institutions during the 2016…
View details →DOI: 10.1111/jora.70156 Negative / Null Result ReportMedicine
MacAllister WS, Désiré N, Brooks BL · 2026 · The Clinical neuropsychologist
Objective There is strong support for the use of performance validity tests (PVTs) in all neuropsychological evaluations, however, research examining racial, ethnic, and linguistic differences in failure rates remains scarce, particularly…
View details →DOI: 10.1080/13854046.2026.2648272 Negative / Null Result Report
Bagchi B, Van Vlaenderen L, Wheeler T et al. · 2026 · Preprint
Maternally transmitted Wolbachia bacteria are common in insects, with many strains altering host reproduction through cytoplasmic incompatibility (CI). CI kills embryos fertilized by Wolbachia -bearing males unless those embryos also carry…
View details →DOI: 10.64898/2026.03.31.715596 Negative / Null Result ReportMedicine
Cronblad IA, Warvik CE, Bjerkli IH et al. · 2026 · Journal of oral pathology & medicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology
Background Oral tongue squamous cell carcinomas (OTSCC) frequently metastasise via lymphatic vessels, thus lymphangiogenesis may enhance tumour cell dissemination by increasing tumour-lymphatic interactions. The prognostic significance of…
View details →DOI: 10.1111/jop.70148 Negative / Null Result Report
Chen YA, Lind MN, Ram N et al. · 2026 · Preprint
Concerns about adolescent screen time have fueled debates about the role of mobile phone use in adolescent development, yet most research has relied on cross-sectional self-reports and global measures of use. The present study advances the…
View details →DOI: 10.31234/osf.io/5d67p_v1 Negative / Null Result ReportMedicine
Pfeiffer JP, Pinquart M, Neubauer BA · 2026 · Epilepsy & behavior : E&B
Objective Using strategies for achieving age-specific goals is essential for developmental regulation. In a previous study, we demonstrated that adolescents with epilepsy have difficulty achieving some of their goals, which necessitates…
View details →DOI: 10.1016/j.yebeh.2026.110971 Negative / Null Result ReportOpen accessMedicine
Balousis P, Abood SK, Brazeau L et al. · 2026 · Frontiers in veterinary science
Introduction Raw meat-based diets (RMBD) are increasingly popular among dog guardians, yet the role of personal nutrition habits and pet-guardian relationships in their adoption remains unclear. This study examines how these factors,…
View details →DOI: 10.3389/fvets.2026.1793754 Negative / Null Result Report
Voorhorst A, Pouzot-Nevoret C, Vernooij JC et al. · 2026 · Preprint
Intravenous lipid therapy (ILE) is used to treat neurotoxicosis in companion animals, but clinical evidence for in vivo xenobiotic partitioning and benefit remains limited. This study evaluated associations between the log n-octanol/water…
View details →DOI: 10.20944/preprints202602.1330.v1 Negative / Null Result Report
Wong BWL, Samuel AG, Kapnoula EC · 2026 · Preprint
Speech perception consistency refers to the extent to which listeners provide similar responses to repeated presentations of the same speech sound (e.g., along a /ba/–/pa/ continuum). Although recent research has demonstrated multiple…
View details →DOI: 10.31234/osf.io/gxmnr_v1 Negative / Null Result ReportMedicine
Najjar E, Khan S, Quraishi NA et al. · 2026 · European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
Background Cage subsidence is a common radiographic finding following transforaminal lumbar interbody fusion (TLIF), but its clinical relevance remains uncertain. Hounsfield Unit (HU) values from preoperative CT scans have emerged as…
View details →DOI: 10.1007/s00586-026-09906-0 Negative / Null Result ReportMedicine
Ballinger TJ, Zhao F, Jiang G et al. · 2026 · Cancer
Background Black patients with breast cancer experience higher rates of taxane-induced peripheral neuropathy (TIPN), which may compromise chemotherapy dose delivery and health-related quality of life (HRQOL). Using the prospective…
View details →DOI: 10.1002/cncr.70466 Negative / Null Result ReportMedicine
Fosstveit SH, Feron J, Lohne-Seiler H et al. · 2026 · BMC sports science, medicine & rehabilitation
Background High-intensity interval training (HIIT) was originally designed to improve athletic performance, but a growing body of research over the past decade has highlighted its positive impact on various other health outcomes. However,…
View details →DOI: 10.1186/s13102-026-01750-5 Negative / Null Result ReportMedicine
Lemos C, Vargas F, Donald EM et al. · 2026 · Journal of cardiac failure
Background Women, racial and ethnic minority groups, and patients of low socioeconomic status (SES) face barriers linked to adverse outcomes after heart transplantation (HT). Data are lacking regarding the association of these demographics…
View details →DOI: 10.1016/j.cardfail.2026.04.016 