TL;DR: A 2025 study in Computers in Human Behavior linked at-risk problematic gaming to weaker basic working memory, while recreational gaming was linked to better target detection on an attention-control task. Key Findings Three gaming groups: Researchers compared 114 adults who were non-gamers, recreational gamers, or gamers at risk for gaming disorder. Working memory was …
TL;DR: A 2026 study in Neuropsychopharmacology found that decision-making measures from a stop-signal task, especially evidence accumulation, predicted cigarette and cannabis use better than stop-signal reaction time (SSRT), a common estimate of response inhibition. Key Findings More than 1,000 young adults: The analysis used IMAGEN cohort stop-signal task data from 1,256 participants at age 19 …
TL;DR: A 2026 study in Neuropsychiatric Disease and Treatment followed 55 adults after mild-to-moderate COVID-19 and found that neurocognitive test performance improved over time after both Alpha/Delta-era and Omicron-era infections. Key Findings 55-person longitudinal sample: Researchers compared 28 Alpha/Delta-era participants with 27 Omicron-era participants after mild-to-moderate COVID-19. Initial cognitive findings: About half of each group …
TL;DR: A 2026 eNeuro study of 163 people ages 3-25 found that sleep history and age shaped waking electroencephalography (EEG) oscillations, while children with ADHD showed distinct sleep-wake EEG patterns. Key Findings Sleep and development interact to shape wake EEG oscillations: The amount of recent sleep or wakefulness produces age-dependent effects on EEG oscillation amplitude …
TL;DR: A 2026 study in Biological Psychiatry: Global Open Science linked higher psychopathy in MRI data from 804 incarcerated men to lower empathic concern and broader cortical surface area, while empathy scores themselves were not directly tied to cortical thickness or surface area. Key Findings The sample was large for prison MRI research: the study …
TL;DR: A 2026 randomized clinical trial in the Journal of Sport and Health Science assigned 130 midlife adults to 150 minutes/week aerobic exercise or no-exercise control for 1 year and found sustained lower long-term cortisol in the exercise group. Key Findings Year-long randomized trial in 130 midlife adults: Participants aged 26 to 58 were randomly …
TL;DR: A 2026 randomized study in Psychological Medicine found that right orbitofrontal cortex repetitive transcranial magnetic stimulation (rTMS), a noninvasive brain-stimulation method, improved visuospatial memory on the Brief Visuospatial Memory Test-Revised (BVMT) in people with first-episode schizophrenia. Key Findings The analysis included 90 patients: Researchers studied 48 people assigned to active rTMS and 42 assigned …
TL;DR: A 2026 iScience study found that both humans and rats could report their own timing errors in a 2-second task, but rats made more accurate error-based choices than humans. Key Findings Matched timing task: Researchers compared 34 adults with 16 male Sprague-Dawley rats in a similar 2-second time-production task. Both species monitored errors: Humans …
TL;DR: A 2026 Nature study found that training language models to sound warmer made them less accurate across factual, medical, and misinformation tasks, with error rates rising by about 5 to 9 percentage points by task and sycophancy increasing when users expressed incorrect beliefs. Key Findings Five models tested: the study fine-tuned Llama-8b, Mistral-Small, Qwen-32b, …
TL;DR: A 2025 study in Thinking & Reasoning found that twelfth graders outperformed seventh graders on fast probability reasoning, but adult-like logical intuition was still not fully developed by the end of high school. Key Findings More than 300 French students were tested: The study compared seventh graders around age 12 with twelfth graders around …
