TOP > Research > Comprehensive List of Researchers "Information Knowledge" > Department of Media Science > Media Representation Laboratory > KOBAYASHI, Tessei

Comprehensive List of Researchers "Information Knowledge"

Department of Media Science

Media Representation Laboratory
Visiting Associate Professor
Research Field
Experimental Psychology / Developmental Cognitive Science / Psycholinguistics

Current Research

Linguistic and Cognitive Development in Children

We are unique animals because we use language for complicated social communication and conceptual problem solving. Although human children appear to acquire easily language within a few years of birth, a computer cannot learn a human language like human children, even if we use very advanced technology represented by current computer science. Our aim is to clarify how children acquire language and to apply scientific evidence to support parenting and early education with ICT technology.

Research Topics:

  • Analyzing vocabulary spurt based on longitudinal data
  • Clarifying learning mechanism on nouns and verbs using syntactic cues by experimental approach
  • Creating child vocabulary database (age of acquisition, production list, etc.) based on large sample cross-sectional data
  • Proposing ICT application for language learning support  

Linguistic and Cognitive Development in Children


  • 2004 Receiving Ph.D. in Graduate School of Arts and Science, University of Tokyo, 2005-present Working at NTT Communication Science Laboratories, NTT Cop.

Academic Societies

  • Japanese Psychological Association
  • Japanese Cognitive Science Society


  1. 「First Words:Age 0-3」(Shougakkan, 2008)
  2. 「Basic Word Database」(Gakken, 2008)
  3. Kobayashi, T. et al. (2005). Auditory-visual intermodal matching of small numerosities in 6-month-old infants. Developmental Science, 8, 409-419.
  4. Kobayashi, T. et al. (2004). Baby arithmetic: One object plus one tone. Cognition, 91, B23-B34.