Abstract:
:The role of attentional control in lexical ambiguity resolution was examined in two patients with damage to the left inferior frontal gyrus (LIFG) and one control patient with non-LIFG damage. Experiment 1 confirmed that the LIFG patients had attentional control deficits compared to normal controls while the non-LIFG patient was relatively unimpaired. Experiment 2 showed that all three patients did as well as normal controls in using biasing sentence context to resolve lexical ambiguities involving balanced ambiguous words, but only the LIFG patients took an abnormally long time on lexical ambiguities that resolved toward a subordinate meaning of biased ambiguous words. Taken together, the results suggest that attentional control plays an important role in the resolution of certain lexical ambiguities - those that induce strong interference from context-inappropriate meanings (i.e., dominant meanings of biased ambiguous words).
journal_name
Brain Langjournal_title
Brain and languageauthors
Vuong LC,Martin RCdoi
10.1016/j.bandl.2010.09.012subject
Has Abstractpub_date
2011-01-01 00:00:00pages
22-32issue
1eissn
0093-934Xissn
1090-2155pii
S0093-934X(10)00158-6journal_volume
116pub_type
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