Okajima, I. (2014). Impact of sleep reactivity
to stress and sleep-related beliefs on improvement of insomnia. Symposium session presented at
the 8th Asian Sleep Research Society Congress, Kovalam, India (Sep. 22).
Okajima, I. (2012). The effect of cognitive behavioral therapy for insomnia on vulnerability to development and relapse of insomnia. Symposium session presented at the 7th Asian Sleep Research Society Congress, Taipei, Taiwan (Dec. 2).
Okajima, I. (2011). Effects of cognitive behavioral therapy on patients with pharmacological treatment-resistant insomnia. Abstract
symposium session presented at the Worldsleep2011 Conference, Kyoto (Oct. 16). Sleep and Biological Rhythms, 9(4),