Tuma Basa was a master of the mix tape while attending the University of Iowa in the mid-1990s. His job now is to create hip hop playlists for the music-streaming giant Spotify. He’s the curator of the service’s largest hip-hop playlist, RapCaviar, which has more than 8.8 million listeners.
The halting effect of a surprise stimulus:
A new study from the University of Iowa finds that an unexpected sound causes people to stop an action more often than when they heard no sound at all. The finding could lead to new treatments for motor-control disorders, as well as address aging-related decline in motor control.