H. KURODA ET AL.
might reduce the symptoms of PTSD for the victims who suf-
fered from great disaster. The limitation of this study is that the
questionnaire study cannot say the causal relationship between
morning-typology and reduced PTSD. Some experimental
study for the causal relationship is remained in the future.
Acknowledgements
We thank all the participants of this study. Thanks are also
due to the Kochi University President Foundation for Support
of Research (2009-2012: to T. Harada) and Research Funds by
JSPS (Fund No: 22370089: 2010-2013: to T. Harada; Found
No: 23·10971: 2011-2014: to K. Wada) for financial support.
Thanks are also due to Mis Laura Sato who is professional
English editor and supported us from linguistic point of view.
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