Genetic and environmental interactions in determining the early lexicon: Evidence from a set of tri-zygotic quadruplets

Karla K. McGregor, Nina C. Capone

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A set of tri-zygotic quadruplets, three girls and one boy, participated in weekly observations from 1;2 to 1;10 (years;months), a period of transition from prelinguistic gesture to 50 words. In the study, one girl served as a genetic mate to her identical twin and a biological risk mate to her fraternal sister. The biological risk mates achieved milestones in lexical development at similar times; however, the genetic mates demonstrated more similarities in pattern of lexical development and in the modality of their word productions. Degree of similarity changed over the observation period. Imposed upon the natural experiment was a within-subject manipulation of the social environment: The experimenters modelled a core vocabulary via the gesture + verbal modalities to the children during each visit. The modelling resulted in increased rates of word learning for three of the children; the child with the greatest biological risk, the boy, derived the greatest benefit. The findings provide unique support for a dynamic, multi-factorial model of lexical development involving the interaction of genetics, the biological environment and the social environment. Furthermore, they illustrate the robustness of early lexical development in the face of biological risks.

Original languageEnglish (US)
Pages (from-to)311-337
Number of pages27
JournalJournal of Child Language
Volume31
Issue number2
DOIs
StatePublished - May 1 2004

Fingerprint

Gestures
Social Environment
interaction
evidence
Monozygotic Twins
Vocabulary
manipulation
Siblings
vocabulary
Observation
Learning
Quadruplet
Lexicon
Interaction
experiment
Lexical Development
Mate
learning
Modality
Gesture

ASJC Scopus subject areas

  • Language and Linguistics
  • Experimental and Cognitive Psychology
  • Developmental and Educational Psychology
  • Linguistics and Language
  • Psychology(all)

Cite this

Genetic and environmental interactions in determining the early lexicon : Evidence from a set of tri-zygotic quadruplets. / McGregor, Karla K.; Capone, Nina C.

In: Journal of Child Language, Vol. 31, No. 2, 01.05.2004, p. 311-337.

Research output: Contribution to journalArticle

@article{4a3d91e0f5244953a7e9b77cb5945537,
title = "Genetic and environmental interactions in determining the early lexicon: Evidence from a set of tri-zygotic quadruplets",
abstract = "A set of tri-zygotic quadruplets, three girls and one boy, participated in weekly observations from 1;2 to 1;10 (years;months), a period of transition from prelinguistic gesture to 50 words. In the study, one girl served as a genetic mate to her identical twin and a biological risk mate to her fraternal sister. The biological risk mates achieved milestones in lexical development at similar times; however, the genetic mates demonstrated more similarities in pattern of lexical development and in the modality of their word productions. Degree of similarity changed over the observation period. Imposed upon the natural experiment was a within-subject manipulation of the social environment: The experimenters modelled a core vocabulary via the gesture + verbal modalities to the children during each visit. The modelling resulted in increased rates of word learning for three of the children; the child with the greatest biological risk, the boy, derived the greatest benefit. The findings provide unique support for a dynamic, multi-factorial model of lexical development involving the interaction of genetics, the biological environment and the social environment. Furthermore, they illustrate the robustness of early lexical development in the face of biological risks.",
author = "McGregor, {Karla K.} and Capone, {Nina C.}",
year = "2004",
month = "5",
day = "1",
doi = "10.1017/S0305000904006026",
language = "English (US)",
volume = "31",
pages = "311--337",
journal = "Journal of Child Language",
issn = "0305-0009",
publisher = "Cambridge University Press",
number = "2",

}

TY - JOUR

T1 - Genetic and environmental interactions in determining the early lexicon

T2 - Evidence from a set of tri-zygotic quadruplets

AU - McGregor, Karla K.

AU - Capone, Nina C.

PY - 2004/5/1

Y1 - 2004/5/1

N2 - A set of tri-zygotic quadruplets, three girls and one boy, participated in weekly observations from 1;2 to 1;10 (years;months), a period of transition from prelinguistic gesture to 50 words. In the study, one girl served as a genetic mate to her identical twin and a biological risk mate to her fraternal sister. The biological risk mates achieved milestones in lexical development at similar times; however, the genetic mates demonstrated more similarities in pattern of lexical development and in the modality of their word productions. Degree of similarity changed over the observation period. Imposed upon the natural experiment was a within-subject manipulation of the social environment: The experimenters modelled a core vocabulary via the gesture + verbal modalities to the children during each visit. The modelling resulted in increased rates of word learning for three of the children; the child with the greatest biological risk, the boy, derived the greatest benefit. The findings provide unique support for a dynamic, multi-factorial model of lexical development involving the interaction of genetics, the biological environment and the social environment. Furthermore, they illustrate the robustness of early lexical development in the face of biological risks.

AB - A set of tri-zygotic quadruplets, three girls and one boy, participated in weekly observations from 1;2 to 1;10 (years;months), a period of transition from prelinguistic gesture to 50 words. In the study, one girl served as a genetic mate to her identical twin and a biological risk mate to her fraternal sister. The biological risk mates achieved milestones in lexical development at similar times; however, the genetic mates demonstrated more similarities in pattern of lexical development and in the modality of their word productions. Degree of similarity changed over the observation period. Imposed upon the natural experiment was a within-subject manipulation of the social environment: The experimenters modelled a core vocabulary via the gesture + verbal modalities to the children during each visit. The modelling resulted in increased rates of word learning for three of the children; the child with the greatest biological risk, the boy, derived the greatest benefit. The findings provide unique support for a dynamic, multi-factorial model of lexical development involving the interaction of genetics, the biological environment and the social environment. Furthermore, they illustrate the robustness of early lexical development in the face of biological risks.

UR - http://www.scopus.com/inward/record.url?scp=3142669317&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=3142669317&partnerID=8YFLogxK

U2 - 10.1017/S0305000904006026

DO - 10.1017/S0305000904006026

M3 - Article

C2 - 15495843

AN - SCOPUS:3142669317

VL - 31

SP - 311

EP - 337

JO - Journal of Child Language

JF - Journal of Child Language

SN - 0305-0009

IS - 2

ER -