The article ‘Does daily Naikan therapy maintain the efficacy of intensive Naikan therapy against depression? Psychiatry and Clinical Neurosciences 2010; 64: 44–51’ contained errors with regard to the academic degrees of the authors. Neither Mari Sengoku (first author), Hiroaki Murata, Takanobu Kawahara, Kaori Imamura had PhD, which was noted after each name in the original paper. The academic degrees of all the authors should be corrected as follows:

Mari Sengoku MA, Hiroaki Murata BA, Takanobu Kawahara BA, Kaori Imamura LPN and Kazuyuki Nakagome MD, PhD.

The authors apologize for these serious errors of their own making and any inconvenience they may have caused.