In 2011, Bem published the article "Feeling the Future: Experimental Evidence for Anomalous Retroactive Influences on Cognition and Affect" in the "Journal of Personality and Social Psychology" that offered statistical evidence for psi. The article's findings challenged modern scientific conceptions about the unidirectional nature of time. Its presentation by a respected researcher, and its publication by an upper-tier journal, engendered much controversy. In addition to criticism of the paper itself, the paper's publication prompted a wider debate on the validity of peer review process for allowing such a paper to be published. Bem appeared on MSNBC and "The Colbert Report" to discuss the experiment.