TL;DR: Among 100 college students, those more distressed by unusual experiences like odd perceptions or suspicious thoughts made more jerky “catch-up” eye jumps while following a moving dot. The link was modest, and it was strongest when the dot briefly disappeared. Key Findings 100 students, average age 19: Recruited to span low to high distress …
TL;DR: Old mice given nicotine in their drinking water for 3 months had more cells carrying two key markers of brake-like neurons in the hearing part of the brain, reaching young-adult levels. The study did not test hearing, and it is no reason for anyone to take up nicotine. Key Findings Markers fell with age: …
TL;DR: In mice, two visual areas of the brain kept signals they agreed on going longer and let mismatched signals fade faster. The two-way wiring between the areas appears to be what makes this happen. Key Findings Two areas recorded at once: 194 neurons in the main visual area and 228 in a higher one, …
TL;DR: A 2026 study in Nature Communications found that PLTi, an evolutionarily old group of inhibitory brainstem neurons, was required for mice to choose a goal-relevant visual target over lower-priority distractors. Key Findings PLTi defined: Parabigemino-lateral tegmental inhibitory complex neurons were mostly parvalbumin-positive GABAergic cells in the mouse brainstem. 95.01% overlap: Nearly all GABA-positive cells …
TL;DR: A 2026 study in Scientific Reports identified a novel OPHN1 K306N variant in a boy with cyclic strabismus, linking a 24-hour eye-alignment rhythm to altered phosphoinositide binding without the intellectual disability usually associated with OPHN1 syndrome. Key Findings 8-year-old patient: A Japanese boy had cyclic esotropia, with left eye crossing in the morning and …
TL;DR: A 2026 study in The Journal of the Acoustical Society of America found that seeing a video tied to the sound source, such as motion from a train, drum, keyboard, bird, or canoe paddle, made faint sounds easier to detect through noise. Closing the eyes raised sound-detection thresholds by 1.32 dB, while videos tied …
TL;DR: A 2026 mouse study in The Journal of Physiology found that damaging noise temporarily disrupted sound-offset responses in a brainstem hearing circuit, but those timing responses partly recovered within 24 hours through rapid circuit adaptation. Key Findings Sound-offset responses mark when sound ends: researchers studied neurons in the superior paraolivary nucleus (SPN), a brainstem …
TL;DR: A 2026 study in PNAS from Oregon Health & Science University and Anhui University used optogenetics in mice to map a specific serotonin-producing brain circuit that runs straight to the auditory system, showed that activating this circuit produced tinnitus-like behavior, and traced a likely mechanism for why some patients on SSRI antidepressants report worsened …
Hearing Aids Beat PSAPs Where Real-World Listening Gets Hard TL;DR: Hearing aids beat personal sound amplifiers where listening gets hardest: high-frequency sound, speech in noise, and daily user satisfaction. Key Findings Hearing aids won the crossover test: Adults with sensorineural hearing loss used either a hearing aid or a PSAP for 3 months, then switched …
Early Locus Coeruleus Axon Loss May Explain Smell Loss in Alzheimer’s TL;DR: Alzheimer’s-model mice lost noradrenergic locus coeruleus axons in the olfactory bulb before major plaque buildup, took 60% longer to find buried food, and improved when microglial phagocytosis was reduced. Key Findings 3-month axon loss before heavy plaque load: AppNL-G-F mice showed a selective …
