Izumi, A. (2003) Effect of temporal separation on tone-sequence discrimination in monkeys. Hearing Research 175: 75-81.
Koda, H., Masataka, N. (2002) A pattern of acoustic modification that commonly exists when human mothers attempt to gain the attention of their infants and when macaques attempt to gain the attention of others in their group. Psychological Reports 91: 421-422.
Masataka, N. (2002) Low anger-aggression and anxiety-withdrawal characteristic to preschoolers in Japanese society where 'hikikomori' is becoming a major social problem. Early Education & Development 13: 187-199.
Masataka, N. (2002) Pitch modification when interacting with elders: Japanese women with and without experience with children. Journal of Child Language 29: 939-951.
Masataka, N. (2002) The importance of reading picture books to infants. Asian/Pacific Book Development 32: 5-6.
Ceugniet, M., Izumi, A. (2002) Japanese monkeys use several different parameters to discriminate individuals vocally. XIXth IPS Congress of the International Primatological Society (Aug. 2002, Beijing, China) Abstract : 234.
Masataka, N. (2002) Implication of the evolution of laughter for language acquisition. Linguistics ＆ Phonetics (Sep. 2002, Chiba, Japan).
Uozumi, M., Tomonaga, M., Yamazaki, Y., Watanabe, S., Kojima, S. (2002) Name recognition by chimpanzees (Pan troglodytes). COE International Symposium (Nov. 2002, Inuyama, Japan).