1. Relationship between caricature face shape and impression: Understanding author's message;Masuda;Kaogaku (Journal of Japan Academy of Facial Studies),2007
2. What makes a portrait attractive;Suzuki;Kaogaku (Journal of Japan Academy of Facial Studies),2007
3. Promotion of emotional communication using ‘happy’ emoticons;Takehara;Kaogaku (Journal of Japan Academy of Facial Studies),2004
4. Yahoo Avatars http://avatar.yahoo.co.jp/
5. Second Life http://jp.secondlife.com/