Neuroscientists have pioneered a method enabling high-density neural recordings across the entire brain of awake nonhuman primates, integrating ultra-high-density microelectrode arrays implanted in multiple cortical and subcortical regions. Published in Nature Neuroscience, this technology captures neural spikes and local field potentials with millisecond precision, vastly expanding spatial coverage while maintaining biocompatibility. Paired with a distributed neural interface and centralized data acquisition, this breakthrough promises novel insights into neural circuits underlying cognition and behavior.