Podcast:99% Invisible Published On: Wed Jul 13 2016 Description: In the late 1950s, the Institute of Personality Assessment and Research embarked on a mission to study the personalities of particularly creative scientists and artists. Researchers established categories, grouping analytical creatives together (including scientists and mathematicians) as well as artistic … Continue reading → Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to ad-free new episodes and get exclusive access to bonus content.