University of California, Davis, researchers have developed a new, neuroplasticity-promoting drug closely related to LSD that harnesses the psychedelic’s therapeutic power with reduced hallucinogenic potential. The research, published in Proceedings of the National Academy of Sciences, highlights the new drug’s potential as a treatment option for conditions like schizophrenia, where psychedelics are not prescribed for safety reasons.

The extent to which “civilization” heightens or lessens the likelihood of violent conflict throughout human history has remained one of the most enduring questions among anthropologists. But a new collaborative study of archaeological groups from the Andes region of South America suggests that being part of a centrally organized state society is only part of the equation.

A new study published in the Proceedings of the National Academy of Sciences shows that there is an association between how songs sound and their place in our emotional lives. Sourcing songs from across the globe, Manvir Singh and his fellow researchers found that people from different types of societies can successfully identify a song’s type by how it sounds, regardless of the language of its words.