Lexical decision task for taxonomic and thematic categorization in typically developing Kannada-English-speaking bilingual children

Abstract

AbstractThe present study investigated the association between the taxonomic, thematic and combined (taxonomic-thematic) conditions during the lexical decision task in Kannada-English speaking bilingual children. Further, the study explored the nature of categorization skills in typically developing Kannada-English speaking bilingual children with respect to the taxonomy and thematic aspects across gender.Considered for the study were 20 preschool children including ten boys and ten girls in the age range of 4–5 years. A total of 50 pictures, including ten target, ten taxonomically related, ten thematically related and 20 distracters were taken from an internet source. Three tasks were introduced to examine the association of the pictures based on taxonomic, thematic and combined conditions. For the first and second task (considered as Experiment I), the children were expected to relate pictures based on taxonomic relationship followed by thematic relationship in the second task. For the final task (Experiment II), both relationships (taxonomic and thematic) were given for each target picture, and the children were expected to relate it with either one of them. Responses were scored and statistically analyzed.There was a significant difference in the performances between male and female children for the taxonomic condition but not for the other two tasks (i.e. thematic and combined conditions). The comparison across three conditions revealed that the performance of those children varied between the conditions. Further, on pair-wise comparison, there was a significant difference for both combined-thematic and combined-taxonomic conditions but not for taxonomic and thematic conditions.The study supports the phenomenon of “thematic to taxonomic shift”, which is found to be emerging in pre-school children. This occurs differently among male and female children. The preferences of thematic relation as opposed to taxonomic relation is highlighted in the present study.