The theory of language acquisition is a young but increasingly active
field. Language Acquisition and Syntactic Theory presents one of the
first detailed studies of comparative syntax acquisition. It is informed
by the view that linguists and acquisitionists are essentially working
on the same problem, that of explaining grammar learnability.
The author takes cross-linguistic data from child language as evidence
for recent proposals in syntactic theory. Developments in the structure
of children's sentences during the first few years of life are traced to
changes in the setting of specific grammatical parameters. Some
surprising differences between the early child grammars of French and
English are uncovered, differences that can only be explained on the
basis of subtle distinctions in inflectional structure. This motivates
the author's claim that functional or nonthematic categories are
represented in the grammars of very young children. The book also
explores the relationship between acquisition and diachronic change in
French and English. It is argued that findings in acquisition, when
viewed from a parameter setting perspective, provide answers to
important questions arising in the study of language change.
The book promises to be of interest to all those involved in the formal,
psychological or historical study of linguistic knowledge.