Altered environmental cues reveal how the brain's internal compass works скачать в хорошем качестве

Altered environmental cues reveal how the brain's internal compass works

Study from McGill University reveals how the brain makes sense of changing environmental cues, by tracking neural activity with the latest advances in brain imaging techniques. The head direction system, classically formalized as a one-dimensional ring attractor network, serves as the brain's internal compass. The HD system lacks a universal reference frame, unlike a globally consistent magnetic compass. Instead, it is anchored to local cues, maintaining a constant offset as cues rotate. This study involved calcium imaging-based population recordings of thalamic HD cells during controlled rotations of a visual landmark. Study: Ajabi, Z., Keinath, A.T., Wei, et al. Population dynamics of head-direction neurons during drift and reorientation. Nature (2023)