Main concepts for three different discourse tasks in a large non-clinical sample

Core-Lexicon and Main-Concept Production During Picture-Sequence Description in Adults Without Brain Damage and Adults With Aphasia

“…This same speaker sample was used in previous research to develop the MC checklist used in this study. For a more detailed discussion of the rationale and distribution characteristics of the normative sample, please see Richardson and Dalton (2015).…”

“…Significant differences in MC production between control speakers and PWAs, as well as between speakers with fluent and nonfluent aphasia, have been documented (Kong, 2009;Nicholas & Brookshire, 1993b, 1995. MC analysis is easy to perform (L. Armstrong, Brady, Mackenzie, & Norrie, 2007;Kong, 2009), reliable across raters (Kong, 2009(Kong, , 2011Nicholas & Brookshire, 1993a, 1995Richardson & Dalton, 2015), and stable across sessions for control speakers and PWAs (Boyle, 2014;Kong, 2011;Nicholas & Brookshire, 1993b, 1995. It is important to note that MC measures, specifically percentage of accurate and complete MCs, have outperformed standardized assessment measures of impairment and activity limitations in predicting socially valid change in response to treatment (Ross & Wertz, 1999).…”

“…MC analysis (Kong, 2009(Kong, , 2011Nicholas & Brookshire, 1993b, 1995Richardson & Dalton, 2015) is a rule-based system of scoring how accurately and completely speakers produce concepts considered to be essential for conveying the gist of a shared narrative. Significant differences in MC production between control speakers and PWAs, as well as between speakers with fluent and nonfluent aphasia, have been documented (Kong, 2009;Nicholas & Brookshire, 1993b, 1995.…”

“…It is important to note that MC measures, specifically percentage of accurate and complete MCs, have outperformed standardized assessment measures of impairment and activity limitations in predicting socially valid change in response to treatment (Ross & Wertz, 1999). Given these strengths and the recent introduction of MC checklists for several discourse tasks (Richardson & Dalton, 2015), MC analysis is uniquely suited for the aforementioned investigation.…”

Fostering human rights through TalkBank

“…The AphasiaBank database has facilitated the development of new clinician-friendly discourse evaluation tools focussing on methods such as core concepts (Richardson & Dalton, 2016) or propositional density (Brown, Snodgrass, Kemper, Herman, & Covington, 2008). The CLAN programs for analysis of TalkBank materials allow researchers and clinicians to automatically compute a wide range of these measures and to compare results from individual patients with patterns in the larger database.…”