A 2026 Environmental Science & Technology experiment found that wild guppies still reduced maze solve times with practice after 11-day exposure to environmentally motivated amitriptyline concentrations, but exposed males made 26.35% to 34.21% more navigation errors than control males.1 The result is a sex-specific accuracy signal, not a blanket claim that antidepressant pollution erased learning. …
A 2026 EEG study found that image memorability predicted recognition strongly, z = 9.17, p < 0.001, and the N400 encoding signal tracked memorability after later recognition success was included in the same model.1 The result weakens the common shortcut that every hit-vs-miss brain signal is purely an encoding-success signal. Research Highlights Memorability predicted recognition: …
A 2026 medRxiv preprint involving 65 early subacute stroke survivors found that a composite cerebral small-vessel disease MRI score predicted 90-day cognitive recovery more reliably than any single input marker.1 Lower baseline burden predicted higher follow-up Montreal Cognitive Assessment scores (β = −0.19; p = 0.009) and remained associated after baseline cognition was included (β …
A 2026 randomized study involving 80 people with schizophrenia found that adding high-frequency repetitive transcranial magnetic stimulation to risperidone improved PANSS cognitive-factor scores and aggressive-behavior ratings more than risperidone alone over 4 weeks.1 Research Highlights Design was randomized but short: 80 patients were assigned to risperidone alone or risperidone plus rTMS, 40 per group, with …
A 2026 Australian study involving 2,192 dementia-free adults found that each 10% higher ultra-processed food intake was associated with 0.05-point lower attention and 0.24-point higher modified CAIDE dementia-risk score.1 The memory result was not significant, so the honest read is attention and risk-score signal, not global cognitive collapse. Research Highlights Attention was lower: Each 10% …
A 2026 CARDIOSA-12 secondary analysis found that active hypoglossal nerve stimulation improved sleepiness, insomnia, snoring, and sleep-related function, but objective cognitive test performance mostly did not improve compared with partially therapeutic stimulation.1 Symptom relief and measurable cognitive recovery answer separate clinical questions in treated obstructive sleep apnea. Research Highlights Subjective outcomes improved: active HGNS improved …
A 2026 cross-sectional schizophrenia study found no meaningful association between antipsychotic dose and Montreal Cognitive Assessment (MoCA) performance in young, clinically stable outpatients. Cognitive scores related more strongly to symptom burden, illness duration, education, and age at diagnosis than to daily or 1-year cumulative antipsychotic exposure.1 Research Highlights Daily dose was not linked to MoCA: …