AAC Performance and Usability Issues: The Effect of AAC Technology ...

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strained, r·equiring Thad to repair the misunder- standing within a narrow timeframe in o•'de•· to p•·eve n~ furth(lr problems. H(' chose g('Sture ove•· his AAC ...
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1\PPUF.:D RESEARCH

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AAC Performance and Usability Issues: The Effect of AAC Technology on the Communicative Process *D. Jeffery HigginbothA m nnd t Kevin Caves •Communication ond th sitilh'f!' D~uk•f' L abvrator.v, lhJXfrlmcnt oj' Communicatnf«'tt«s. Unnw·sity at

Buffalo. Buffalo. Nru· York; anti t Dukt> l.luitwrMty Mrdical C~nter. Durham. lVorth CoroJwn

In ahi...- article. CJark's theory of langur•ge use is ap-plied to the study of convenation.r; of augmented speakers and their addrcssct·s:. Oi"cussion focuses on how shared meaning~;tllcd common grom\d-is ;u,:ltieved. tbe proC"tSS of ~rOIUtdiug uue.ranccs under real-time conttra_inl", and how the media c:-ha.r;u.:teri.s· tics of devicb affect the grounding prOroblems are un ique in that they are prob· !e ms related to conversation and performance. They may be momenta ry, extend through a ~t.retch of com·('rsation. or persist throughout the inter· action. But in all cases, these problems ore cxpc· ric nc,·d in rl!al time. Somotim~,; t.hc p•·oblcm~ tii'O easy t.o i successful conversation. lnlcl·nctive verbal communication is dyMm ic, multimodu l, IOl.OCW, VOL. 14. NO. l

1974). Because conversation is our principal, and mostly unconscious, communication acti\itv. we need t.o account for its pnmct our line of research and theory building. First, we argue t hat langu:1ge. having PvolvNI "ithin a social in teraction context. is designed for conducting facc·t.o-fat-c conversational activities