Summary: New research reveals that serotonin in the cerebellum plays a crucial role in anxiety regulation. Scientists found that mice with lower cerebellar serotonin levels displayed increased anxiety-like behaviors, while those with higher serotonin levels were less anxious.By artificially stimulating or inhibiting serotonin-releasing neurons in the cerebellum, researchers were able...

Summary: A new study shows that the cerebral cortex acts as a “memory machine,” constantly detecting novel stimuli to refine its predictions of the future. By imaging the auditory cortex of mice, researchers found that neurons track sensory inputs over time, forming “echoes” that help distinguish new information.A neural network...