A case-series test of the interactive two-step model of lexical access: Evidence from picture naming Export

@article{citeulike:1836053, abstract = {Many facts about aphasic and nonaphasic naming are explained by models that use spreading activation to map from the semantics of a word to its phonology. The implemented model of picture naming discussed here achieves this by coupling interactive feedback with two selection steps. The model's structure and default parameters were set up to match the normal naming profile; and aphasic naming is simulated by altering "lesionable" parameters away from default settings. Past studies within this framework have used different sets of lesionable parameters. Here, in the largest and most representative case-series ever modeled, we show the superiority of the version of the model that allows lesions to weaken semantic and/or phonological connections. Pairing this approach to lesions with the assumptions of interactivity and two-step selection equips the model to explain the wide variation in individual naming response profiles and key facts about lexical and sublexical errors.}, author = {Schwartz, Myrna F. and Dell, Gary S. and Martin, Nadine and Gahl, Susanne and Sobel, Paula}, citeulike-article-id = {1836053}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.jml.2005.10.001}, citeulike-linkout-1 = {http://www.sciencedirect.com/science/article/B6WK4-4HTCTK3-1/2/910c1aadd4d38db69ad96f3ead11c6cd}, doi = {10.1016/j.jml.2005.10.001}, journal = {Journal of Memory and Language}, month = {February}, number = {2}, pages = {228--264}, posted-at = {2007-10-29 16:15:21}, priority = {2}, title = {A case-series test of the interactive two-step model of lexical access: Evidence from picture naming}, url = {http://dx.doi.org/10.1016/j.jml.2005.10.001}, volume = {54}, year = {2006} }

TY - JOUR ID - citeulike:1836053 L3 - citeulike-article-id:1836053 N2 - Many facts about aphasic and nonaphasic naming are explained by models that use spreading activation to map from the semantics of a word to its phonology. The implemented model of picture naming discussed here achieves this by coupling interactive feedback with two selection steps. The model's structure and default parameters were set up to match the normal naming profile; and aphasic naming is simulated by altering "lesionable" parameters away from default settings. Past studies within this framework have used different sets of lesionable parameters. Here, in the largest and most representative case-series ever modeled, we show the superiority of the version of the model that allows lesions to weaken semantic and/or phonological connections. Pairing this approach to lesions with the assumptions of interactivity and two-step selection equips the model to explain the wide variation in individual naming response profiles and key facts about lexical and sublexical errors. IS - 2 JF - Journal of Memory and Language EP - 264 TI - A case-series test of the interactive two-step model of lexical access: Evidence from picture naming VL - 54 SP - 228 AU - Schwartz, Myrna AU - Dell, Gary AU - Martin, Nadine AU - Gahl, Susanne AU - Sobel, Paula PY - 2006/02// UR - http://dx.doi.org/10.1016/j.jml.2005.10.001 ER -