Tessei Kobayashi, Ph.D.

Senior Distinguished Researcher, Executive Manager
Child Development Research Group
Innovative Communication Lab
NTT Communication Science Laboratories


Contact Information:
tessei.kobayashi (at) ntt.com
2-4 Hikaridai, Seika, Souraku,
Kyoto 619-0237, JAPAN

Research Interests

  • Language Development (word learning, vocabulary spurt, syntactic bootstrapping)
  • Cognitive Development (numerical cognition, intermodal perception, conceptual knowledge)
  • Early Education Support (picture book recommendation system, early literacy support)

Publication

  • Journal Paper
  • Conference Paper

Journal Paper

  1. Shinohara, A., Kanakogi, Y., Okumura, Y., & Kobayashi T.(2024). Children are sensitive to the number of sources when relying on gossip. Royal Society Open Science, 11: 230375. doi.org/10.1098/rsos.230375[pdf]
  2. Zhao, J., Kobayashi T., & Haryu, E. (2024). Impact of talker variability on language development in two-year-olds. Journal of Child Language. Published online 2024:1-23. doi:10.1017/S0305000924000084[pdf]
  3. Okumura, Y., Hattori, T., Fujita, S., & Kobayashi, T. (2023). A robot is watching me!: Five-year-old children care about their reputation after interaction with a social robot. Child Development. doi.org/10.1111/cdev.13903 [pdf]
  4. Okumura, Y., & Kobayashi, T. (2023). Do infants understand educational television content based on scientific findings? Journal of Experimental Child Psychology, 229, 105620. doi.org/10.1016/j.jecp.2022.105620 [pdf]
  5. Shinohara, A., Narazaki, M., & Kobayashi, T. (2022). Children's affiliation toward peers reflected in their picture drawings. Behavior Research Methods. doi.org/10.3758/s13428-022-01924-2 [pdf]
  6. Kanakogi, Y., Miyazaki, M., Takahashi, H., Yamamoto, H., Kobayashi, T., & Hiraki, K. (2022). Third-party punishment by preverbal infants. Nature Human Behaviour. doi.org/10.1038/s41562-022-01354-2 [pdf]
  7. Okumura, Y., Oshima-Takane, Y., Kobayashi, T., Ma, M., & Kayama, Y. (2022). Comprehension of Null and Pronominal Object Sentences in Japanese-speaking Children. Language Learning and Development. doi.org/10.1080/15475441.2022.2050235 [pdf]
  8. Shinohara, A., & Kobayashi, T. (2022). Children's understanding of friendship formation caused by gossip. Journal of Experimental Child Psychology, 217, 105370. doi.org/10.1016/j.jecp.2021.105370. [pdf]
  9. Higuchi, H., & Kobayashi, T. (2022). Letter visual similarity of Japanese hiragana and katakana based on reaction times. Current Psychology. doi.org/10.1007/s12144-021-02664-w [pdf].
  10. Shinohara, A., Kanakogi, Y., Okumura, Y., & Kobayashi, T. (2021). The impact of positive and negative testimony on children's attitudes toward others. PLoS ONE, 16(12): e0261075. doi.org/10.1371/journal.pone.0261075. [pdf]
  11. Okumura, Y., & Kobayashi, T. (2021). Effects of maternal picture book knowledge on language development of 15-month olds. Infant and Child Development. doi.org/10.1002/icd.2291 [pdf]
  12. Okumura, Y., & Kobayashi, T. (2021). Contingent experience with touchscreens promotes parent-child conversations. Cognitive Development, 60. doi.org/10.1016/j.cogdev.2021.101100 [pdf]
  13. Shinohara, A., Kanakogi, Y., Okumura, Y., & Kobayashi, T. (2021). Children manage their reputation by caring about gossip. Social Development. doi:10.1111/sode.12548 [pdf]
  14. Higuchi, H., Okumura, Y., & Kobayashi, T. (2021). An eye-tracking study of letter-sound correspondence in Japanese-speaking 2- to 3-year-old toddlers. Scientific Reports, 11. doi.org/10.1038/s41598-020-79062-y [pdf].
  15. Shinohara, A., Kanakogi, Y., Okumura, Y., & Kobayashi, T. (2020). How do children evaluate the gossiper of negative gossip? Japanese Psychological Research. doi.org/10.1111/jpr.12279 [pdf]
  16. Okumura, Y., Kanakogi, Y., Kobayashi, T., & Itakura, S. (2020). Ostension affects infant learning more than attention. Cognition, 195. doi.org/10.1016/j.cognition.2019.104082 [pdf]
  17. Ikeda, A., Kobayashi, T., & Itakura, S. (2019). Sensitivity to register selection errors amongst 5- and 7-year-old children. Developmental Psychology. doi.10.1037/dev0000725 [pdf]
  18. Watanabe, N., & Kobayashi, T. (2019). Japanese children's emotion talk: Relations to interdependent cultural values and their prosocial and aggressive behaviors. Culture & Brain. doi.org/10.1007/s40167-019-00081-2 [pdf]
  19. Watanabe, N., Denham, S. A., Jones, N. M., Kobayashi, T., Bassett, H. H., & Ferrier, D. E. (2019). Working toward cross-Cultural adaptation: Preliminary psychometric evaluation of the affect knowledge test in Japanese preschoolers. SAGE Open, 9(2), 1-15. doi/10.1177/2158244019846688 [pdf]
  20. Mugitani, R., Kobayashi, T., Hayashi, A., & Fais, L. (2019). The use of pitch accent in word-object association by monolingual Japanese infants. Infancy, 24(3), 318-337. doi.org/10.1111/infa.12279 [pdf]
  21. Ikeda, A., Okumura, Y., Kobayashi, T., & Itakura, S. (2018). Children passively allow other's rule violation in cooperative situations. Scientific Report, 8 (1), 6843. doi:10.1038/s41598-018-25210-4. [pdf]
  22. Ikeda, A., Kobayashi, T., & Itakura, S. (2018). Sensitivity to linguistic register in 20-month-olds: Understanding the register-listener relationship and its abstract rules. PLoS ONE 13(4): e0195214. doi:10.1371/journal.pone.0195214. [pdf]
  23. Okumura, Y., Kanakogi, Y., Kobayashi, T., & Itakura, S. (2017). Individual differences in object-processing explain the relationship between early gaze-following and later language development. Cognition, 166 , 418-424. doi.org/10.1016/j.cognition.2017.06.005 [pdf]
  24. Suzuki, T., & Kobayashi, T. (2017). Syntactic cues for inferences about causality in language acquisition: Evidence from an argument-drop language. Language Learning & Development, 13(1), 24-37. doi.org/10.1080/15475441.2016.1193019 [pdf]
  25. Okumura, Y., Kobayashi, T., & Itakura, S. (2016). Eye contacts alter object encoding strategy in infants. PLoS ONE, 11(10): e0165145. doi:10.1371/journal.pone.0165145. [pdf]
  26. Kobayashi, T., & Suzuki, T. (2014). Inferring verb meanings from syntactic frames by Japanese 2-year-old children: An experimental approach from an IPL paradigm with a dialogue phase. Japanese/Korean Linguistics, 22, 1-12.
  27. Oshima-Takane, Y., & Kobayashi, T. (2012). Early word learning in young Japanese children. Studies in Language Sciences, 11, 24-34.
  28. Oshima-Takane, Y., Ariyama, J., Kobayashi, T., Katerelos, M., & Poulin-Dubois (2011). Early verb learning in 20-month-old Japanese-speaking children. Journal of Child Language, 38, 455-484.
  29. Chang, F., Kobayashi, T., Amano, S. (2009). Social factors in the acquisition of a new word order. First Language, 29(4), 423-441.
  30. Irie-Sugimoto, N., Kobayashi, T., Sato, T., & Hasegawa, T. (2009). Relative quantity judgments in Asian elephants (Elephas maximus). Animal Cognition, 12(1), 193-199.
  31. Irie-Sugimoto, N., Kobayashi, T., Sato, T., & Hasegawa, T. (2008). Evidence of mean-end behaviour in Asian elephants (Elephas maximus). Animal Cognition, 11(2), 359-365.
  32. Mugitani, R., Kobayashi, T., & Hiraki, K. (2008). Audiovisual matching of lips and non-canonical sounds in 8-month-old infants. Infant Behavior & Development, 31(2), 311-315.
  33. Kobayashi, T., Hiraki, K., & Hasegawa, T. (2005). Auditory-visual intermodal matching of small numerosities in 6-month-old infants. Developmental Science, 8(5), 409-419.
  34. Kobayashi, T., Hiraki, K., Mugitani, T., & Hasegawa, T. (2004). Baby arithmetic: One object plus one tone. Cognition, 91(2), B23-B34.
  35. Suzuki, K., & Kobayashi, T. (2000). Numerical competence in rats (Rattus norvegicus): Davis & Bradford (1986) extended. Journal of Comparative Psychology, 114(1), 73-85.
  36. Penton-Voak, I. S., Perrett, D. I., Castles, D. L., Kobayashi, T., Burt, D. M., Murray, L. K., & Minamisawa, R. (1999). Menstrual cycle alters face preference. Nature, 399, 741-742.

Conference Paper

  1. Watanabe, N., Hattori, T., & Kobayashi, T. (2024). Developing a large?scale Japanese emotion word database: Tool to promote childrenfs emotional development. Paper presented at 45th Annual Conference of International School Psychology Association (ISPA), Riga, Latvia.
  2. Hattori, T., Furuta, T., Watanabe, N., & Kobayashi, T. (2024). Effects of familiarity on emotion word ratings: Developing a Japanese large-scale emotion word database. Paper presented at 45th Annual Conference of International School Psychology Association (ISPA), Riga, Latvia.
  3. Sato, S., Higuchi, H., Shinohara, A., Kobayashi, T., Nishimura, T., Iwabuchi, T., & Tsuchiya, K. (2024). Effect of older siblings on language development in Japanese-speaking children: A longitudinal birth cohort study. Poster presented at 45th Annual Conference of International School Psychology Association (ISPA), Riga, Latvia.
  4. Shiraishi, S., Saito, T., Higuchi, H., Inoue, K., & Kobayashi, T.. (2023). Perimetric complexity is a valid index for the subjective complexity of Japanese characters. Proceedings of the Annual Meeting of the Cognitive Science Society (CogSci2023), Vol 45, p.3974, P2-HH-233-1365.
  5. Higuchi, H., Park, K., Inoue, K., & Kobayashi, T.. (2023). Unconscious learning of orthographic regularity. P Proceedings of the Annual Meeting of the Cognitive Science Society (CogSci2023), p.3855,
  6. Saito, T., Inoue, K., Higuchi, H., & Kobayashi, T. (2023). Discriminability of picture book typeface in children. Proceedings of the Annual Meeting of the Cognitive Science Society (CogSci2023), p.3975, P3-HH-359-1968.
  7. Hattori, T., Sawada, H., Fujita, S., Kobayashi, T., Kamei, K., & Naya, F. (2023). Monotonic variational AutoEncoder-based individually optimized problem recommender system. The 13th International Learning Analytics and Knowledge Conference (LAK2023), Arington, Taxas, USA.
  8. Okumura, Y., Hattori, T., Fujita, S., & Kobayashi, T. (2023). Five-year-old children care more about their reputation following interaction with robots. Poster presented at 13th Annual Budapest CEU Conference on Cognitive Development (BCCCD) Meeting, pp.257-258, Budapest, Hungary.
  9. Minami, Y. & Kobayashi, T. (2022). Probabilistic model using HDP producing vocabularies of Japanese children. Interdisciplinary advances in Statistical Learning, PS-2.17(p.96), San Sebastian, Spain (June 2022).
  10. Ishikawa, C. & Kobayashi, T. (2021). When the bouba/kiki effect begins to occur in Japanese children. Poster presented at 32nd International Congress of Psychology, #2850, Parue, Czech Republic (July 2021).
  11. Sakamoto, Y., Okumura, Y., Minami, Y., Mugitani, R., Ito, K., & Kobayashi, T. (2021). Charactersitics of vocabulary development of children in residential care institutions. Poster presented at 32nd International Congress of Psychology, #2105, Parue, Czech Republic (July 2021).
  12. Cao, Y., Minami, Y., Okumura, Y., Sakamoto, Y., & Kobayashi, T. (2021). Predicting new words for young Japanese children using large-scaled Japanese child vocabulary development database. Poster presented at 32nd International Congress of Psychology, #2104, Parue, Czech Republic (July 2021).
  13. Shinohara, A., Kanakogi, Y., Okumura, Y., & Kobayashi, T. (2021). How do children evaluate a negative gossiper? Poster presented at 32nd International Congress of Psychology, #2683, Parue, Czech Republic (July 2021).
  14. Kaneshige, T., Haryu, E., Okumura, Y., & Kobayashi, T. (2021). Children's preference for a standard accent heard on TV versus a regional accent adults are proud of. Poster presented at 32nd International Congress of Psychology, #xxxx, Parue, Czech Republic (July 2021).
  15. Shinohara, A., Kanakogi, Y., Okumura, Y., & Kobayashi, T. (2020). Children manage their reputation with regard to gossip. Poster presented at 10th Annual Budapest CEU Conference on Cognitive Development(BCCCD) Meeting, Budapest, Hungary.
  16. Kaneshige, T., Haryu, E., Okumura, Y., & Kobayashi, T. (2020). Children's trust in individuals who speak in a familiar regional accent and those who speak in the standard accent used on TV. Poster presented at 10th Annual Budapest CEU Conference on Cognitive Development(BCCCD) Meeting, Budapest, Hungary.
  17. Okumura, Y., Kanakogi, Y., Kobayashi, T., & Itakura, S. (2020). Do ostensive cues have more impact on infants' gaze following than attentional cues? Poster presented at 10th Annual Budapest CEU Conference on Cognitive Development(BCCCD) Meeting, Budapest, Hungary.
  18. Sakamoto, Y., Okumura, Y., Kobayashi, T., & Minami, Y. (2020). Properties of early vocabulary development in Japanese-English bilingual children. Poster presented at 10th Annual Budapest CEU Conference on Cognitive Development(BCCCD) Meeting, Budapest, Hungary.
  19. Higuchi, H., Okumura, Y., & Kobayashi, T. (2019). Acquisition of letter-sound correspondence in Japanese-speaking 2-year-olds: An eye-tracking study. Poster presented at the Biennial Meeting of the Society for Research in Child Development (SRCD2019), Baltimore, Maryland, USA, March 21 - 23, 2019).
  20. Watanabe, N., & Kobayashi, T. (2019). Does culture shape children's interpretations and descriptions of emotions? Predicting their prosocial and aggressive behaviors. Poster presented at the 39th Biennial Meeting of the Society for Research in Child Development (SRCD2019), Baltimore, Maryland, USA (21-23 March, 2019).
  21. Shinohara, A., Kanakogi, Y., Okumura, Y., & Kobayashi, T. (2019). Seven-year-olds utilize gossip to evaluate others. Poster presented at the 39th Biennial Meeting of the Society for Research in Child Development (SRCD2019), Baltimore, Maryland, USA (21-23 March, 2019).
  22. Cao, Y., Minami, Y., Okumura, Y., & Kobayashi, T. (2019). Vocabulary size as explanatory variable for Japanese-speaking Children's vocabulary development. 3rd International Convention of Psychological Science (ICPS2019), Paris (7-9, March, 2019).
  23. Matsuda, M., & Kobayashi, T. (2018). Population density and life history strategy in Japan. Poster presented at 30th Meeting of Human Behavior & Evolution Society (HBES2018), Amsterdam, Netherlands.
  24. Shinohara, A., Kanakogi, Y., Okumura, Y., & Kobayashi, T. (2018). When do children begin to utilize gossip to evaluate others? Paper presented at International Workshop on Gossip, Reputation & Honesty, Budapest, Hungary (17-18 May 2018).
  25. Okumura, Y., Ohtake, Y., Gobara, A., Yonemitsu, F., Naka, K., Fujita, S., Hattori, T., Yamada, Y., & Kobayashi, T. (2018). An innovative picture-book search system improves the quality of mothers' picture-book selection and mother-child shared reading. Poster presented at 25th Biennial Meeting of International Society for the Study of Behavioral Development (ISSBD2018), Gold Coast, Australia (15-19 July 2018).
  26. Watanabe, N., & Kobayashi, T. (2018). Everyone is now happy with the little frog: The relation between school-age children's emotion understanding and prosocial behaviors. Poster presented at 25th Biennial Meeting of International Society for the Study of Behavioral Development (ISSBD2018), Gold Coast, Australia (15-19 July 2018).
  27. Nakane, A., Watanabe, N., & Kobayashi, T. (2018). Japanese mothers' child-rearing goals: Relations to their parental practices. 40th Annual Conference of the International School Psychology Association. Tokyo Seitoku University, Tokyo, Japan (25-28 July 2018).
  28. Shinohara, A., Kanakogi, Y., Okumura, Y., & Kobayashi, T. (2018). When do children begin to utilize gossip to evaluate others? Workshop on Gossip, Reputation and Honesty, Budapest, Hungary.
  29. Watanabe, N., & Kobayashi, T. (2018). Knowing more emotion words is good for children? The association between emotion vocabulary and prosocial behaviors in elementary school children. Paper presented at Asian Conference of Psychology & Behavioral Sciences (ACPBS2018), Kobe, Japan (23-25 March 2018).
  30. Cao, Y., Minami, Y., Okumura, Y., & Kobayashi, T. (2018). Analyzing vocabulary commonality index using large-scaled database for child vocabulary development. Poster presentation at the 11th Language Resource and Evaluation Conference (LREC2018), Miyazaki, Japan.
  31. Minami, Y., Kobayashi, T., & Okumura, Y. (2018). Infant word comprehension-to-production index applied to investigation of noun learning predominance using cross-lingual CDI database. Poster presentation at the 11th Language Resource and Evaluation Conference (LREC2018), Miyazaki, Japan.
  32. Higuchi, D., Okumura, Y., & Kobayashi, T. (2018). Influence of letter properties for Hiragana reading/writing acquisition. Paper presented at 2nd conference of Association for Reading & Writing in Asia (ARWA2018), Tsukuba, Japan.
  33. Okumura, Y., Ohtake, Y., Gobara, A., Sasaki, K., Yonemitsu, F., Naka, K., Watanabe, N., Fujita, S., Hattori, T., Yamada, Y., & Kobayashi, T. (2017). The effect of an intervention assisting mothers with picture book search. Poster presentation at 27th Conference of European Early Childhood Education Research Association (EECERA2017), Bologna, Italy.
  34. Fujita, S., Kobayashi, T., Okumura, Y., & Hattori, T. (2017). Investigation of the relationship between words in picture books and child vocabulary acquisition: Recommending picture books with suitable readability. Poster presentation at 27th Conference of European Early Childhood Education Research Association (EECERA2017), Bologna, Italy.
  35. Hattori, T., Fujita, S., Aoyama, K., Kobayashi, T., & Okumura, Y. (2017). Pitarie: a system to find picture books that match children's ages and interests. In N. Watanabe (Chair), Mothers' beliefs and values regarding early childhood socialization. Paper symposium presentation at 27th Conference of European Early Childhood Education Research Association (EECERA2017), Bologna, Italy.
  36. Saito, A., Fujimoto, Y., Okumura, Y., Hattori, T., Fujita, S., Watanabe, N., & Kobayashi, T. (2017). Selecting appropriate picture books for children: Implementation of Pitarie, a search system for picture books at a preschool teacher preparation program. Paper symposium presentation at 27th Conference of European Early Childhood Education Research Association (EECERA2017), Bologna, Italy.
  37. Watanabe, N., Kawasaki, N., & Kobayashi, T. (2017). What is important in my child's childcare? Mothers' beliefs about childcare quality in Japan. In N. Watanabe (Chair), Mothers' beliefs and values regarding early childhood socialization. Paper symposium presentation at the 27th Conference of European Early Childhood Education Research Association (EECERA2017), Bologna, Italy.
  38. Watanabe, N., Kawasaki, N., & Kobayashi, T. (2017). Mothers' beliefs about childcare quality in Japan: The importance of teacher-child relationships and teacher-parent communication. In N. Watanabe (Chair), Promoting child development and learning from infancy to adolescence: Mothers' and teachers' belief, attitude, knowledge, behavior, and practice. Paper symposium presentation at the International School Psychology Association 39th Annual Conference, Manchester, UK.
  39. Minami, Y., Moriyama, R., Kobayashi, T., & Okumura, Y. (2017). Word acquisition correlation in Japanese-speaking children using large-scale vocabulary development database. Poster presented at International Conference on Interdisciplinary Advances in Statistical Learning (IASL2017), Bilbao, Spain.
  40. Okumura, Y., Kobayashi, T., Minami, Y., & Moriyama, R. (2017). Acquisition of infant-directed speech words in Japanese-speaking children: Analysis using large-scale vocabulary-checklist data. Poster presented at International Conference on Interdisciplinary Advances in Statistical Learning (IASL2017), Bilbao, Spain.
  41. Okumura, Y., Kobayashi, T., & Minami, Y. (2017). Acquisition of mental state language in Japanese children: Analysis of large-scaled vocabulary-checklist data. Poster presented at the 3rd Workshop on Infant Language Development (WILD2017), Bilbao, Spain.
  42. Fujita, S., Kobayashi, T., Okumura, Y., & Hattori, T. (2017). How do words in picture books affect child vocabulary acquisition? An analysis of large-scaled corpus in Japanese picture books. Poster presented at the 3rd Workshop on Infant Language Development (WILD2017), Bilbao, Spain.
  43. Ikeda, A., Kobayashi, T., & Itakura, S. (2017). Transition of Japanese mother's infant-/child-directed speech. Poster presented at the 14th International Conference for the Studies of Child Language (IASCL2017), Lyon, France.
  44. Ikeda, A., Kobayashi, T., & Itakura, S. (2017). Sensitivity to linguistic register in 20-month-olds: Understanding the register-listener relationship and its abstract rules. Poster presented at the 1st International Congress for Psychological Science (ICPS2017), Vienna, Hungary.
  45. Okumura, Y., Kobayashi, T., & Itakura, S. (2017). Eye contacts alter object encoding strategy in infants. Poster presented at the 1st International Congress for Psychological Science (ICPS2017), Vienna, Hungary.
  46. Okumura, Y., Kobayashi, T., Fujita, S., & Hattori, T. (2016). Why is shared book reading effective for children's theory of mind development? Frequency analysis of cognitive mental state terms in Japanese picture books. Poster presented at International Conference on Language Acquisition (ICLA2016), Spain.
  47. Kobayashi, T., Oshima-Takane, Y., Hirama, K., Melhem, B., & Morel, S. (2016). How mothers describe dynamic action events to 20-month-old children: A cross-linguistic study. Paper presented at 31st International Conference of Psychology (ICP2016), Yokohama, Japan.
  48. Okumura, Y., Kobayashi, T., & Oshima-Takane, Y., Ma, M., & Kayama, Y. (2016). Japanese children comprehend null object sentences earlier than pronominal object sentences. Paper presented at 15th International Conference on Infant Studies (ICIS2016), New Orleans, LI.
  49. Kobayashi, T., Minami, Y., & Okumura, Y. (2015). Fluctuating Development of Common Nouns and Predicates in Early Lexical Development: Evidence from Analysis of Large-sample Vocabulary Checklist Data in Japanese children. Poster presented at the 17th European Conference on Developmental Psychology (ECDP2015), Braga, Portugal.
  50. Okumura, Y., Ikeda, A., Kobayashi, T., & Itakura, S. (2015). Positive and negative impression management in 5- and 6-year-old children. Poster presented at the 17th European Conference on Developmental Psychology (ECDP2015), Braga, Portugal.
  51. Okumura, Y., Ikeda, A., Park, Y., Kobayashi, T., & Itakura, S. (2015). Measurement of Maternal Mental State Explanations: Relation to Theory of Mind Development in Japanese Children. Poster presented at the 17th European Conference on Developmental Psychology (ECDP2015), Braga, Portugal.
  52. Ikeda, A., Kobayashi, T., & Itakura, S. (2015). Omission of case makers in Japanese mother's Infant-Directed Speech: Examination of individual differences. Poster presented at the 17th European Conference on Developmental Psychology (ECDP2015), Braga, Portugal.
  53. Watanabe, N., Denham, A. S., Bassett, H. H., & Kobayashi, T. (2015). Parental Socialization of Emotion in Japan: Contribution to Preschoolers' Emotion Knowledge. Poster presented at the 17th European Conference on Developmental Psychology (ECDP2015), Braga, Portugal.
  54. Okumura, Y., Kanakogi, Y., Kobayashi, T., & Itakura, S. (2015). Individual differences in object-processing explain the relation between gaze following and vocabulary size. Poster presented at the 2nd Workshop on Infant Language Development (WILD2015), Stockholm, Sweden.
  55. Ikeda, A., Kobayashi, T., & Itakura, S. (2015). Early comprehension of sound-symbolic words: Evidence from Japanese. Poster presented at the 2nd Workshop on Infant Language Development (WILD2015), Stockholm, Sweden.
  56. Kobayashi, T., & Murase, T. (2015). Learning Novel Words with Sound Effect in Japanese-learning 12-month-olds. Poster presented at the 2nd Workshop on Infant Language Development (WILD2015), Stockholm, Sweden.
  57. Minami, Y., & Kobayashi, T. (2015). Gender variability of child word-comprehension and -production days. Poster presented at the 2nd Workshop on Infant Language Development (WILD2015), Stockholm, Sweden.
  58. Ikeda, A., Kobayashi, T., & Itakura, S. (2015). Understanding of the register of IDS and ADS: Evidence from Japanese-learning toddlers. Poster presented at the 5th Annual Budapest CEU Conference on Cognitive Development (BCCCD2015), Budapest, Hungary.
  59. Watanabe, N., Jones, N., Denham, S., & Kobayashi, T. (2015). How Culture Plays a Role? Relations between Parenting Practice and Preschoolers' Emotion Knowledge in Japan. Paper presented at the 37th Biennial Meeting of the Society for Research in Child Development (SRCD2015), Philadelphia, Pennsylvania, USA.
  60. Okumura, Y., Kanakogi, Y., Kobayashi, T., & Itakura, S. (2015). Individual differences in object processing by gaze following predict language development. Poster presented at the 37th Biennial Meeting of the Society for Research in Child Development (SRCD2015), Philadelphia, Pennsylvania, USA.
  61. Omaki. A., Kobayashi, T., & Lidz, J. (2014). Early comprehension of sound-symbolic words: Evidence from Japanese. Paper presented at the 39th Boston University Conference on Language Development (BUCLD39), Boston, USA.
  62. Omaki. A., Kobayashi, T., & Lidz, J. (2014). Interpretation of cues during parsing: Cue reliability in the acquisition of Japanese case markers. Paper presented at the 1st International Workshop on Children's Acquisition and Processing of Head-Final Languages (CAPHL), Boston, USA.
  63. Watanabe, N., Denham, S., Kobayashi, T., & Bassett, H. H. (2014). Cultural Differences in Emotion Expressions: Reliability of the Affect Knowledge Test in Japan. The 23rd Biennial Meeting of the International Society for the Study of Behavioural Development (ISSBD2014), Shanghai, China.
  64. Kobayashi, T., & Oshima-Takane, Y. (2014). Developmental changes in infant sensitivity to verb morphosyntactic cues in word learning. Poster presented at the 13th International Conference for the Studies of Child Language (IASCL2014), Amsterdam, Netherlands.
  65. Oshima-Takane, Y., Kobayashi, T., & Chan, E. (2014). Learning novel transitive verbs in Japanese-, French- and English-speaking infants: A cross-linguistic study. Poster presented at the 13th International Conference for the Studies of Child Language (IASCL2014), p.548, Amsterdam, Netherlands.
  66. Murase T., & Kobayashi, T. (2014). Disambiguation in 20-month-old monolingual Japanese children. Poster presented at the 14th International Conference on Infant Studies (ICIS2014), Berlin, Germany.
  67. Kobayashi, T., & Oshima-Takane, Y. (2013). Use of morphosyntactic cues in learning novel transitive verbs by Japanese-speaking 20-month-old children. Paper presented at the 38th Boston University Conference on Language Development (BUCLD38), Boston, USA.
  68. Watanabe, N., Jones, N., Bassett, H. H., Kobayashi, T., & Denham, S. A. (2013). Does Culture Matter? Relations Between Parental Style and Japanese Preschoolers' Emotion Knowledge. American Psychology Association Conference (APA2013), Hawaii, USA.
  69. Watanabe, N., Jones, N. M., Kobayashi, T., Bassett, H. H., & Denham, S. A. (2013). Can TV Watching Benefit Children? Environmental Contributors to Japanese Preschoolers' Emotion Knowledge Learning. American Psychology Association Conference (APA2013), Hawaii, USA.
  70. Kobayashi, T., Minami, Y., & Sugiyama, T. (2013). Vocabulary spurt and noun acquisition: Evidence from longitudinal data in Japanese-learning children. Proceedings of the Child Language Seminar 2013 (pp.108-109), University of Manchester, Manchester, UK.
  71. Ikeda, A., Kobayashi, T., & Itakura, S. (2013). Abstract comprehension of onomatopoeia by Japanese 3- to 4-year-old children. Proceedings of the Child Language Seminar 2013 (pp. 104-105), University of Manchester, Manchester, UK.
  72. Kobayashi, T., & Murase, T. (2013). Twelve-month-olds' failure to associate multiple novel words with objects in a habituation switch task. Workshop on Infant Language Seminar (WILD2013), San Sebastian, Spain.
  73. Ikeda, A., Kobayashi, T., & Itakura, S. (2013). Cross-modal matching of onomatopoetic words and visual textures by Japanese 1-year-old infants. Workshop on Infant Language Seminar (WILD2013), San Sebastian, Spain.
  74. Sugiyama, H., Kobayashi, T., & Minami, Y. (2013). Individual variation of word acquisition age: A comparison of Japanese- and English-speaking infants. Workshop on Infant Language Seminar (WILD2013), San Sebastian, Spain.
  75. Minami, Y., & Kobayashi, T. (2013). Influence of predominance in noun learning examined by period from comprehending to producing words: A cross-linguistic statistical investigation using CDI. Workshop on Infant Language Seminar (WILD2013), San Sebastian, Spain.
  76. Minami, Y., Kobayashi, T., & Sugiyama, H. (2013). Cross-linguistic universalities of word acquisition ages in comprehension and production. Workshop on Infant Language Seminar (WILD2013), San Sebastian, Spain.
  77. Kobayashi, T., Minami, Y., & Sugiyama, H. (2013). Word-class composition in first 20 words predicts later word acquisition rate. Poster presented at the 36th Meeting of the Society for Research in Child Development (SRCD2013), Seattle, USA.
  78. Watanabe, N., Kobayashi, T., Bassett, H. H., & Denham, S. A. (2013). Preschoolers' Causal Attributions for Self and Other's Emotions in Relation to Verbal Ability and Parenting Style in Japan. Poster presented at the 36th Meeting of the Society for Research in Child Development (SRCD2013), Seattle, USA.
  79. Ikeda, A., Kobayashi, T., & Itakura, S. (2013). Crossmodal correspondence of onomatopoeia by 4-year-old Japanese children. Poster presented at the 36th Meeting of the Society for Research in Child Development (SRCD2013), Seattle, USA.
  80. Kobayashi, T., & Murase, T. (2013). Associating two novel labels with one object by Japanese 1-year-old children. Poster presented at the 36th Meeting of the Society for Research in Child Development (SRCD2013), Seattle, USA.
  81. Murase, T., & Kobayashi, T. (2013). Japanese mothers provide multiple labels/forms in infant- and adult-directed speech: functional and morphosyntactic analysis. Poster presented at the 36th Meeting of the Society for Research in Child Development (SRCD2013), Seattle, USA.
  82. Minami, Y., & Kobayashi, T. (2013). Differences between noun and verb learning periods from comprehension to production in early language development. Poster presented at the 13th Budapest CEU Conference on Cognitive Development (BCCCD13), Budapest, Hungary.
  83. Kobayashi, T., & Suzuki, T. (2012). Inferring verb meanings from syntactic frames by Japanese 2-year-old children: An experimental approach from an IPL paradigm with a dialogue phase. Paper presented at the 22nd Japanese/Korean Linguistics Conference (J/K22), Tokyo, Japan.
  84. Omaki, A., Kobayashi, T., Lassotta, R., Rizzi, L., & Franck, J. (2012). Input effects on parser development: Evidence from Japanese word order development. Poster presented at the 18th Annual Conference on Architectures and Mechanisms for Language Processing (AMLaP2012), Riva Del Garda, Italy.
  85. Kobayashi, T., Minami, Y., & Sugiyama, H. (2012). Vocabulary spurt and word-class composition: Further evidence for a model of plateaus and linearity in early vocabulary growth. Poster presented at the 18th Annual Conference on Architectures and Mechanisms for Language Processing (AMLaP2012), Riva Del Garda, Italy.
  86. Omaki, A., Lassotta, R., Kobayashi, T., Rizzi, L., & Franck, J. (2012). Delay of word order development in Japanese: Evidence from a preferential looking study with 19- and 30-month-old children. Poster presented at the 34th Meeting of Cognitive Science Society (CogSci2012), Sapporo, Japan.
  87. Oshima-Takane, Y., Kobayashi, T., Chen, J., & Tardif, T. (2012). Mapping of novel nouns and verbs in dynamic motion events in Japanese-, French- and English-speaking infants: A cross-linguistic study. 22th Biennial Meeting of International Society for the Study of Behavioral Development (ISSBD2012), Edmonton, Canada.
  88. Minami, Y., Kobayashi, T., & Sugiyama, H. (2012). Plateaus and linearity of early vocabulary growth. 22th Biennial Meeting of International Society for the Study of Behavioral Development (ISSBD2012), Edmonton, Canada.
  89. Watanabe, N., Kobayashi, T., Bassett, H. H., & Denham, S. A. (2012). Relations between parenting style and preschoolers' emotional competence in Japan. Poster presented at the 22nd Biennial Meeting of International Society for the Study of Behavioral Development (ISSBD2012), Edmonton, Canada.
  90. Sugiyama, H., Kobayashi, T., & Minami, Y. (2012). Prediction of vocabulary growth using local linearity. 22th Biennial Meeting of International Society for the Study of Behavioral Development (ISSBD2012), Edmonton, Canada.
  91. Watanabe, N., & Kobayashi, T. (2012). Measuring emotion knowledge in Japanese children: Cross-cultural comparison on the reliability of the Affect Knowledge Test. Poster presented at the 22nd Biennial Meeting of Society for Research in Human Development (SRHD2012), New Orleans, USA.
  92. Kobayashi, T., & Murase, T. (2011). Learning multiple labels for a single object in Japanese children. Poster presented at the 36th Boston University Conference on Language Development (BUCLD36), Boston, USA.
  93. Murase, T., & Kobayashi, T. (2011). The use of multiple labels in Japanese mothers' speech to toddlers: Baby talk and adult talk. Poster presented at the 15th European Conference on Developmental Psychology (ECDP2011), Bergen, Norway.
  94. Kobayashi, T., & Suzuki, T. (2011). Japanese 28-month-olds' inference about verb meaning from syntactic frames. 12th International Congress for the Study of Child Language (IASCL2011), Montreal, Canada.
  95. Chang, F., & Kobayashi, T. (2011). A mismatch preference in Japanese children's mapping between particles and intentionality. 12th International Congress for the Study of Child Language (IASCL2011), Montreal, Canada.
  96. Oshima-Takane, Y., & Kobayashi, T. (2011). Learning verbs before nouns: Early sensitivity to verb morphosyntactic cues in Japanese 16-month-old children. 12th International Congress for the Study of Child Language (IASCL2011), Montreal, Canada.
  97. Minami, Y., Sugiyama, H., & Kobayashi, T. (2011). Multiple vocabulary spurts in Japanese children. 12th International Congress for the Study of Child Language (IASCL2011), Montreal, Canada.
  98. Kobayashi, T., Oshima-Takane, Y., Mugitani, R., & Chang, F. (2011). Early word-object and word-action associations by Japanese 12- and 14-month-old infants. The 13th Annual International Conference of the Japanese Society for Language Sciences (JSLS2010), Osaka, Japan.
  99. Sugiyama, H., Kobayashi, T., & Minami, Y. (2011). Analysis of vocabulary spurt from prediction performance evaluation. The 35th Meeting of the Society for Research in Child Development (SRCD2011), Montreal, Canada.
  100. Kobayashi, T., & Oshima-Takane, Y. (2011). Can 14-month-olds use morphosyntactic cues in word learning? The 35th Meeting of the Society for Research in Child Development (SRCD2011), Montreal, Canada.
  101. Kobayashi, T., & Oshima-Takane, Y. (2010). Early verb extension in Japanese-learning children. Poster presented at the 35th Boston University Conference on Language Development (BUCLD35), Boston, USA.
  102. Chang, F., & Kobayashi, T. (2010). Mapping between particles and intentionality in Japanese preferential looking. Poster presented at the 35th Boston University Conference on Language Development (BUCLD35), Boston, USA.
  103. Kobayashi, T., & Nagata, M. (2010). Early lexical development in Japanese Children: Age of acquisition of first 50 words specified using web diary method. The 20th Child Language Seminar (CLS2010), London, UK.
  104. Fujisawa, K.K., Kobayashi, T., & Ando, J. (2010). Early lexical development in Japanese-speaking 12-, 18-, 24-month-old twins. The 13 rd International Conference on Twin Studies (ICTS2010), Seoul, South Korea.
  105. Kobayashi, T., & Oshima-Takane, Y. (2010). Use of morphosynactic cues in verb learning by Japanese 16-month-old children. The 23rd Annual CUNY Conference on Human Sentence Processing (CUNY2010), New York, USA.
  106. Kobayashi, T., & Mugitani, R. (2010). Multiple exemplars fail to facilitate infants' word-action association. The 17th International Conference on Infant Studies (ICIS2010), Baltimore, Maryland.
  107. Oshima-Takane, Y., & Kobayashi, T. (2009). Early verb learning in Japanese children. The 11th International Meeting of the Japanese Society of Language Science (JSLS2009), Saitama, Japan.
  108. Kobayashi, T., & Oshima-Takane, Y. (2009). Use of morphosyntactic cues in word mapping by Japanese children. The 34th Meeting of the Society for Research in Child Development (SRCD2009), Denver, USA.
  109. Kobayashi, T., Mugitani, R., Chang, F., & Amano, S. (2008). Effect of sentential contexts on word-action associations in 12- to 18-month-old Japanese infants. The 2nd International Workshop on Mental Architecture for Processing and Learning of Language (MAPLL), Miyagi, Japan.
  110. Kobayashi, T., & Mugitani, R. (2008). Mapping and extending novel verb labels by Japanese 18-month-old children. The 6th International Congress for the Study of Child Language (IASCL2008), pp.196, Edinburgh, UK.
  111. Chang, F., Kobayashi, T., & Amano, S. (2008). Social knowledge contextualizes the initial learning of a new word order. The 6th International Congress for the Study of Child Language (IASCL2008), pp.177, Edinburgh, UK.
  112. Kobayashi, T., Mugitani, R., & Amano, S. (2008). Word-action mapping in sentential contexts by 18-month-old Japanese infants. The 16th International Conference on Infant Studies (ICIS2008), Vancouver, Canada.
  113. Mugitani, R., Kobayashi, T., & Ishizuka, K. (2007). Perceptual development of phonemic categories for Japanese single/geinate obstruents. The 32nd Boston University Conference on Language Development (BUCLD32), Boston, USA.
  114. Irie-Sugimoto, N., Kobayashi, T., Sato, T., & Hasegawa, T. (2007). Relative numerousness judgments by Asian elephants. The 30th International Ethological Conference (IEC2007), Halifax, Nova Scotia, Canada.
  115. Amano, S., Mugitani, R., & Kobayashi, T. (2007). Perceptual boundary between a single and a geminate stop in Japanese. The International Congress of Phonetic Sciences, Saarbruken, Germany.
  116. Chang, F., Kobayashi, T., & Amano, S. (2007). Social knowledge contextualizes syntactic representation in development. The 1st International Workshop on Mental Architecture for Processing and Learning of Language (MAPLL), Hiroshima, Japan.
  117. Chang, F., Kobayashi, T., & Amano, S. (2007). Social cues contextualize syntactic representations in development. The CUNY Sentence Processing Conference, San Diego, CA.
  118. Mugitani, R., Kobayashi, T., & Amano, S. (2006). Perception and lexical acquisition of Japanese pitch accent in infants. Paper presented at The 31st Boston University Conference on Language Development (BUCLD31), Boston, USA.
  119. Kobayashi, T., Mugitani, R., & Amano, S. (2006). Mapping words with intransitive actions by 14-month-old infants. Poster presented at the 31st Boston University Conference on Language Development (BUCLD31), Boston, USA.
  120. Irie, N., Kobayashi, T., & Hasegawa, T. (2004). Elephant Cognition: Understanding of a means-end relationship by captive Asian elephants. The 2nd International Workshop for Young Psychologist, 'Evolution & Development of Cognition', Japan.
  121. Kobayashi, T., & Parr, L. A. (2004). Chimpanzee mathematics: A lack of equivalence judgments on discrete and continuous quantities. The 20th International Primatology Society Congress, Torino, Italy.
  122. Kobayashi, T., & Hasegawa, T. (2004). Birth order, familial sentiment, and personality: Data from Japan. Paper presented at the 28th International Congress of Psychology, Beijing, China.
  123. Mugitani, R., Kobayashi, T., & Hiraki, K. (2004). The lip-sound matching of vowels in Japanese infants. The 14th Biennial International Conference on Infant Studies (ICIS2004), Chicago, USA.
  124. Mugitani, R., Kobayashi, T., & Hiraki, K. (2003). The Role of Speech Production Experience in 8-month-old infants' Lip-voice matching. The Biennial European Conference on Developmental Psychology, Milan, Italy.
  125. Kobayashi, T., & Mugitani, R. (2003). Intermodal numerical reasoning in 5-month-old infants. The Biennial European Conference of Developmental Psychology, Milan, Italy
  126. Kobayashi, T., Hiraki, K., & Hasegawa, T. (2002). Intermodal numerical correspondences in 6-month-old infants. The 13rd Biennial International Conference on Infant Studies, Toronto, Canada.Kobayashi, T., Hasegawa, T., Hiraiwa-Hasegawa, M., & Kurashima, O. (2001). The effect of birth order on personality and familial sentiment in Japan. The Annual Conference of Human Behavior and Evolution Society (HBES), London, UK.