According to Dr. Richard Carrier, Christianity arose among individuals who, due to their schizotypal personalities, believed that their hallucinations of a risen Jesus were reality. In his view, this naturalistic explanation accounts well for the resurrection claims and is like the reported mass hallucinations in cults led by charismatic leaders. In a 2010 debate at Washburn University, Dr. Michael Licona challenged these assertions and presented a case for the historicity of Jesus’ resurrection.