Coreference in Aphasic and non-Aphasic Spoken Discourse: Annotation Scheme and Preliminary Results
In this paper we propose the annotation scheme for the study of referential choice in spoken discourse of Russian speakers with and without aphasia. One of the key features of the annotation scheme is that it allows to establish not only coreference links between markables, but also annotate such phenomena as false-starts, repetitions and renamings. We analyzed the distribution of morphosyntactic types of referential expressions in narratives by people with fluent aphasia non-fluent aphasia and healthy speakers and found significant differences between the groups. We also discuss some important cases that were revealed by the qualitative analysis: use of zero and full anaphoric pronouns as introductory devices and inverse order of elements in noun phrases.