Publications - A-Z index of Authors - Y-Z | Chimpanzee Ai | Primate Research Institute, Kyoto University

Yagi A (5) Akihiro Yagi

Imura T , Shirai N , Tomonaga M , Yamaguchi MK. , Yagi A (2008) Asymmetry on the perception of motion in depth by moving cast shadows. Journal of Vision, 8, 1-8
Imura T , Tomonaga M , Yagi A (2008) The effects of linear perspective on relative size discrimination in chimpanzees (Pan troglodytes) and humans (Homo sapiens). Behavioural Processes, 77, 306-312
Imura T , Tomonaga M , Yamaguchi MK. , Yagi A (2008) Asymmetry in the detection of shapes from shading in infants Japanese Psychological Research, 50, 128-136
Imura T , Yamaguchi MK. , Kanazawa S , Shirai N , Otsuka Y , Tomonaga M , Yagi A (2008) Infants' sensitivity to shading and line junctions. Vision Research, 48, 1420-1426
Imura T , Yamaguchi MK. , Kanazawa S , Shirai N , Otsuka Y , Tomonaga M , Yagi A (2006) Perception of motion trajectory of object from the moving cast shadow in infants Vision Research, 46, 652-657

Yamada S (1) S Yamada

Sakai T , Hirata S , Fuwa K , Sugama K , Kusunoki K , Makishima H , Eguchi T , Yamada S , Ogihara N , Takeshita H (2012) Fetal brain development in chimpanzees versus humans Current Biology, Volume 22, Issue 18, R791–R792

Yamaguchi MK. (9) Masami K. Yamaguchi

Shirai N , Imura T , Hattori Y , Adachi I , Ichihara S , Kanazawa S , Yamaguchi MK. , Tomonaga M (2010) Asymmetric perception of radial expansion/contraction in Japanese macaque (Macaca fuscata) infants Experimental Brain Research, 202, 319-325
Nakato E , Otsuka Y , Konuma H , Kanazawa S , Yamaguchi MK. , Tomonaga M (2009) Perception of illusory shift of eye gaze direction by infants Infant Behavior and Development, 32, 422-428
Imura T , Shirai N , Tomonaga M , Yamaguchi MK. , Yagi A (2008) Asymmetry on the perception of motion in depth by moving cast shadows. Journal of Vision, 8, 1-8
Imura T , Tomonaga M , Yamaguchi MK. , Yagi A (2008) Asymmetry in the detection of shapes from shading in infants Japanese Psychological Research, 50, 128-136
Imura T , Yamaguchi MK. , Kanazawa S , Shirai N , Otsuka Y , Tomonaga M , Yagi A (2008) Infants' sensitivity to shading and line junctions. Vision Research, 48, 1420-1426
Imura T , Yamaguchi MK. , Kanazawa S , Shirai N , Otsuka Y , Tomonaga M , Yagi A (2006) Perception of motion trajectory of object from the moving cast shadow in infants Vision Research, 46, 652-657
Myowa-Yamakoshi M , Yamaguchi MK. , Tomonaga M , Tanaka M , Matsuzawa T (2005) Development of face recognition in infant chimpanzees (Pan troglodytes) Cognitive Development , 20, 49-63
Murai C , Tomonaga M , Kamegai K , Terazawa N , Yamaguchi MK. (2004) Do infant Japanese macaques (Macaca fuscata) categorize objects without specific training? Primates, 45:1-6
Tomonaga M , Tanaka M , Matsuzawa T , Myowa-Yamakoshi M , Kosugi D , Mizuno Y , Okamoto S , Yamaguchi MK. , Bard KA. (2004) Development of social cognition in infant chimpanzees (Pan troglodytes): Face recognition, smiling, gaze, and the lack of triadic interactions Japanese Psychological Research, Volume 46, Issue 3, pages 227-235

Yamakoshi G (8) Gen Yamakoshi

Carvalho S , Yamanashi Y , Yamakoshi G , Matsuzawa T (2010) Bird in the hand: Bossou chimpanzees (Pan troglodytes) capture West African wood-owls (Ciccaba woodfordi) but not to eat Pan Africa News, 17(1), 6-9
Hockings KJ. , Yamakoshi G , Kabasawa A , Matsuzawa T (2010) Attacks on local persons by chimpanzees in Bossou, Republic of Guinea: long-term perspectives American Journal of Primatology, 72:887-896
Yamamoto S , Yamakoshi G , Humle T , Matsuzawa T (2008) Invention and modification of a new tool use behavior: Ant-fishing in trees by a wild chimpanzee (Pan troglodytes verus) at Bossou, Guinea. American Journal of Primatology, 70, 699-702.
Biro D , Inoue-Nakamura N , Tonooka R , Yamakoshi G , Sousa C , Matsuzawa T (2004) Cultural innovation and transmission of tool use in wild chimpanzees: evidence from field experiments Animal Cognition, Volume 6, Number 4, 213-223
Humle T , Matsuzawa T , Yamakoshi G (2004) Chimpanzee conservation and environmental education in Bossou and Nimba, Guinea, West Africa. Folia Primatologica, 75(S1):280-281
Yamakoshi G (2004) Food Seasonality and Socioecology in Pan: Are West African Chimpanzees Another Bonobo? African Study Monographs, 25, 45-60
Yamakoshi G , Myowa-Yamakoshi M (2004) New observations of ant-dipping techniques in wild chimpanzees at Bossou, Guinea. Primates, Volume 45, Number 1, 25-32
Hirata S , Yamakoshi G , Fujita S , Ohashi G , Matsuzawa T (2001) Capturing and Toying with Hyraxes (Dendrohyrax dorsalis) by Wild Chimpanzees (Pan troglodytes) at Bossou, Guinea American Journal of Primatology, 53, 93-97

Yamamoto J (1) Jun'ichi Yamamoto

Tomonaga M, Matsuzawa T, Fujita K, Yamamoto J, (1991) Emergence of symmetry in a visual conditional discrimination by chimpanzees (Pan troglodytes). Psychological Reports, 68, 51-60

Yamamoto S (11) Shinya Yamamoto

Yamamoto S , Humle T , Tanaka M (2013) Basis for cumulative cultural evolution in chimpanzees: social learning of a more efficient tool-use technique. PLoS ONE, 8(1): e55768
Yamamoto S , Humle T , Tanaka M (2012) Chimpanzees' flexible targeted helping based on an understanding of conspecifics' goals Proceedings of the National Academy of Sciences, Published online before print February 6, 2012
Yamamoto S , Takimoto A (2012) Empathy and Fairness: Psychological Mechanisms for Eliciting and Maintaining Prosociality and Cooperation in Primates Social Justice Research, 25(3), 233-255
Hirata S , Yamamoto S , Takemoto H , Matsuzawa T (2010) A Case Report of Meat and Fruit Sharing in a Pair of Wild Bonobos Pan Africa News, 17(2), December 2010 21-23
Yamamoto S , Tanaka M (2010) The influence of kin relationship and reciprocal context on chimpanzees' other-regarding preferences. Animal Behaviour, Volume 79, Issue 3, Pages 595-602
Tanaka M , Yamamoto S (2009) Token transfer between mother and offspring chimpanzees (Pan troglodytes): mother–offspring interaction in a competitive situation Animal Cognition, Volume 12, Supplement 1, 19–26
Yamamoto S , Humle T , Tanaka M (2009) Chimpanzees help each other upon request PLoS ONE, 4 (10): e7416
Yamamoto S , Tanaka M (2009) Do chimpanzees (Pan troglodytes) spontaneously take turns in a reciprocal cooperation task? Journal of Comparative Psychology, Vol 123(3) 242-249
Yamamoto S , Tanaka M (2009) How did altruism and reciprocity evolve in humans? Perspectives from experiments on chimpanzees (Pan troglodytes) Interaction Studies, 10 (2), 150-182
Yamamoto S , Tanaka M (2009) Selfish strategies develop in social problem situations in chimpanzee (Pan troglodytes) mother-infant pairs Animal Cognition, 12, S27-S36
Yamamoto S , Yamakoshi G , Humle T , Matsuzawa T (2008) Invention and modification of a new tool use behavior: Ant-fishing in trees by a wild chimpanzee (Pan troglodytes verus) at Bossou, Guinea. American Journal of Primatology, 70, 699-702.

Yamanashi Y (4) Yumi Yamanashi

Kano F , Yamanashi Y , Tomonaga M (2012) Emotion as an intervening variable in understanding the cognitive and social complexity and well-being of chimpanzees. Psychologia, Vol. 55, No.1, 9-20
Yamanashi Y , Hayashi M (2011) Assessing the effects of cognitive experiments on the welfare of captive chimpanzees (Pan troglodytes) by direct comparison of activity budget between wild and captive chimpanzees American Journal of Primatology, 73, 1231-1238
Carvalho S , Yamanashi Y , Yamakoshi G , Matsuzawa T (2010) Bird in the hand: Bossou chimpanzees (Pan troglodytes) capture West African wood-owls (Ciccaba woodfordi) but not to eat Pan Africa News, 17(1), 6-9
Yamanashi Y , Matsuzawa T (2010) Emotional consequences when chimpanzees (Pan troglodytes) face challenges: individual differences in self-directed behaviours during cognitive tasks Animal Welfare, 19, 25-30

Yamauchi S (2) Shino Yamauchi

Uenishi G , Fujita S , Ohashi G , Kato A , Yamauchi S , Matsuzawa T , Ushida K (2007) Molecular analyses of the intestinal microbiota of chimpanzees in the wild and in captivity. American journal of Primatology, 69: 367-376
Uenishi G , Fujita S , Ohashi G , Kato A , Yamauchi S , Matsuzawa T , Ushida K (2007) Molecular analysis of the intestinal microbiota of chimpanzees in the wild and in captivity. American journal of Primatology, 69: 1-10

Yoshida T (1) Tomoyuki Yoshida

Kooriyama T , Okamoto M , Yoshida T , Nishida T , Tsubota T , Saito A , Tomonaga M , Matsuzawa T , Akari H , Nishimura H , Miyabe-Nishiwaki T (2012) Epidemiological study of zoonoses derived from humans in captive Chimpanzees Primates, Volume 54, Issue 1, pp 89-98

Zamma K (1) Koichiro Zamma

Zamma K , Fujita S (2004) Genito-genital rubbing among the chimpanzees of Mahale and Bossou Pan Africa News, 11(2): 5-8

Home Publications A-Z index of Authors: Y-Z

Yagi A (5) Akihiro Yagi

Yamada S (1) S Yamada

Yamaguchi MK. (9) Masami K. Yamaguchi

Yamakoshi G (8) Gen Yamakoshi

Yamamoto J (1) Jun'ichi Yamamoto

Yamamoto S (11) Shinya Yamamoto

Yamanashi Y (4) Yumi Yamanashi

Yamauchi S (2) Shino Yamauchi

Yoshida T (1) Tomoyuki Yoshida

Zamma K (1) Koichiro Zamma