Receptor patterns in the brain have been discovered by scientists studying macaque brains. The researchers have mapped out neurotransmitter receptors, revealing their potential role in distinguishing internal thoughts and emotions from external influences. The dataset created by the study has been made publicly available, serving as a bridge between different scales of neuroscience. The researchers used a technique called in-vitro receptor autoradiography to map the density of receptors from six different neurotransmitter systems in over 100 brain regions. Statistical techniques and modern neuroimaging techniques were applied to uncover the relationships between receptor patterns, brain connectivity, and anatomy. The research could lead to a better understanding of brain activity, behavior, and drug actions, as well as guide the development of new treatments targeting specific brain functions. The dataset is freely available to the neuroscientific community via the Human Brain Project’s EBRAINS infrastructure. The international team of researchers comes from various institutions including University of Bristol, New York University, and Universite Paris Cite.