A-bar movement
In generative syntax, A-bar movement (or A ′-movement) is movement to an A-bar position (e.g. wh-movement). As is well known, unbounded dependencies are a characteristic property of A ′-movement (Huang et al., 2009). Constructions that have been shown to be derived by A ′-movement are typically labeled as “wh-movement” structures because they are well represented by wh-interrogative constructions in English.
Origin
The term was first used in the late 1980s.
Characteristics
The following are characteristics of A ′-movement:
a. A gap exists and has an A ′-antecedent.
b. The antecedent–gap relation can cross multiple clause boundaries – unbounded dependency.
c. The dependency relation is sensitive to locality conditions such as Subjacency and the Condition on Extraction Domain.
Link
Utrecht Lexicon of Linguistics
References
Huang, C. T. J., Li, Y. H. A., & Li, Y. (2009). The syntax of Chinese (Vol. 10). Cambridge: Cambridge University Press.
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