A Content-addressable Pointer Mechanism Underlies Comprehension of Verb-Phrase Ellipsis (2006)
BibTeX
@MISC{Martin06acontent-addressable,
author = {Andrea E. Martin and Brian Mcelree and Brian Mcelree},
title = {A Content-addressable Pointer Mechanism Underlies Comprehension of Verb-Phrase Ellipsis},
year = {2006}
}
OpenURL
Abstract
Interpreting a verb-phrase ellipsis (VP ellipsis) requires accessing an antecedent in memory, and then integrating a representation of this antecedent into the local context. This problem was investigated in 4 speed-accuracy trade-off and 2 eye-tracking experiments. To investigate whether the antecedent for a VP ellipsis is accessed with a search or direct-access retrieval process, Experiments 1 and 2 measured the affect of the distance between an ellipsis and its antecedent on the speed and accuracy of comprehension. Accuracy was lower with longer distances, indicating that interpolated material reduced the quality of retrieved information about the antecedent. However, contra a search process, distance did not affect the speed of interpreting ellipsis. This pattern suggests that antecedent representations are content-addressable and retrieved with a direct-access process. To determine whether interpreting ellipsis involves copying antecedent information into the ellipsis site, Experiments 3-6 manipulated the length and complexity of the antecedent. Some types of antecedent complexity—particularly, the number of discourse entities in the antecedent—lowered accuracy. However, neither antecedent length nor complexity affected the speed of interpreting the ellipsis. This pattern is inconsistent with a copy operation, and it suggests that ellipsis interpretation may involve a pointer to extant structures in memory.







