Neural correlates of lexicon and grammar: Evidence from the production, reading, and judgment of inflection in aphasia

Ullman, Michael T.; Pancheva, Roumyana; Love, Tracy; Yee, Eiling; Swinney, David; Hickok, Gregory

doi:10.1016/j.bandl.2004.10.001

Cited by 177 publications

(130 citation statements)

References 195 publications

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“…In contrast to our findings, Ullman and colleagues (Ullman et al, 1997(Ullman et al, , 2005 reported a greater deficit for regular than irregular verbs. The reverse pattern of greater deficits with irregular verbs compared to regular verbs, has also been reported (Balaguer et al, 2004 (in Spanish); Laiacona & Caramazza, 2004 (in Italian); Penke et al, 1999 (in German); Shapiro & Caramazza, 2003, (in English);and Tsapkini, Jarema, & Kehayia, 2002 (in Greek)).…”

Section: Morphological Affixationcontrasting

confidence: 56%

“…Morphological complexity was manipulated to test the notion of impaired morphological processing in agrammatic aphasia (Ullman et al, 1997(Ullman et al, , 2005. Two dimensions of morphological complexity were examined in Experiment 2: inflectional versus derivational morphology and verb regularity.…”

Section: Morphological Affixationmentioning

confidence: 99%

“…Just like everyday, yesterday I _______ (sentence from Ullman et al, 1997). In fact, performance of agrammatic aphasic patients on the same transformation task has been used to support diverse accounts of agrammatic production (compare: Bird et al, 2003;Friedmann & Grodzinsky, 1997;Wenzlaff & Clahsen, 2004;Ullman et al, 1997Ullman et al, , 2005. In addition to the difficulty in distinguishing between DER, syntactic checking and morphophonological operations, this task has other inherent drawbacks.…”

mentioning

confidence: 99%

“…One account of agrammatic aphasic individuals' difficulties in producing inflectional morphology derives from dual-mechanism theories of morphology that propose rule-based affixation operations for regular inflections and whole word access for irregular inflections (Ullman et al, 1997(Ullman et al, , 2005. It is proposed that individuals with agrammatic aphasia are unable to perform affixation operations necessary for the production of regular verbs (Ullman et al, 1997).…”

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confidence: 99%

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Verb inflections in agrammatic aphasia: Encoding of tense features☆

Faroqi‐Shah

Thompson

2007

Journal of Memory and Language

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Across most languages, verbs produced by agrammatic aphasic individuals are frequently marked by syntactically and semantically inappropriate inflectional affixes, such as Last night, I walking home. As per language production models, verb inflection errors in English agrammatism could arise from three potential sources: encoding the verbs' morphology based on temporal information at the conceptual level, accessing syntactic well-formedness constraints of verbal morphology, and encoding morphophonological form. We investigate these aspects of encoding verb inflections in agrammatic aphasia. Using three sentence completion experiments, it was demonstrated that production of verb inflections was impaired whenever temporal reference was involved; while morphological complexity and syntactic constraints were less likely to be the source of verb inflection errors in agrammatism. These findings are discussed in relation to current language production models. KeywordsMorphology; Broca's aphasia; Language; Verb; Inflection; Models of sentence production Aphasia is an impairment in producing and/or comprehending language resulting from acute brain injury such as a cerebrovascular accident. Agrammatic speech is commonly associated with the clinical syndrome of Broca's aphasia, and is frequently characterized by ill-formed sentences, reduced syntactic complexity, a paucity of verbs, and grammatical morpheme errors. Production of both free grammatical morphemes and inflectional morphemes can be impaired in agrammatic aphasia. Across most languages that have been studied, verbs produced by agrammatic aphasic individuals are frequently marked by syntactically and semantically inappropriate inflectional affixes in a variety of tasks including spontaneous speech,

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Section: Morphological Affixationcontrasting

confidence: 56%

Section: Morphological Affixationmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Verb inflections in agrammatic aphasia: Encoding of tense features☆

Faroqi‐Shah

Thompson

2007

Journal of Memory and Language

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“…Given the complex nature of the BeSS, the outcome may reflect several functions (perhaps simultaneously) of the anterior language cortices. Broca"s area is involved in subtle grammatical decisions (Damasio, 1992;Ullman et al, 2005, Rodd et al, 2005.…”

Section: Discussionmentioning

confidence: 99%

Right-hemispheric brain activation correlates to language performance

et al. 2010

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Language function in the right-hemispheric homologues of Broca"s and Wernicke"s areas does not only correlate with left-handedness or pathology, but occurs naturally in righthanded healthy subjects as well. In the current study, two non-invasive methods of assessing language lateralization are correlated with behavioral results in order to link hemispheric dominance to language ability in healthy subjects.Functional Magnetic Resonance Imaging (fMRI) together with a sentence-completion paradigm was used to determine region-specific lateralization indices in the left-and rightsided Broca"s and Wernicke"s areas, the frontal temporal lobe, the anterior cingulate cortex and the parietal lobe. In addition, dichotic listening results were used to determine overall language lateralization and to strengthen conclusions by correlating with fMRI indices.Results showed that fMRI lateralization in the superior parietal, the posterior temporal, and the anterior cingulate cortices correlated to dichotic listening. A decreased right ear advantage (REA), which indicates less left-hemispheric dominance in language, correlated with higher performance in most administered language tasks, including reading, language ability, fluency, and non-word discrimination. Furthermore, right hemispheric involvement in the posterior temporal lobe and the homologue of Broca"s area suggests better performance in behavioral language tasks. This strongly indicates a supportive role of the right-hemispheric counterparts of Broca"s and Wernicke"s areas in language performance.

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Inflectional Morphology and Language Disorders

Penke

2024

The Handbook of Clinical Linguistics, Second Edition

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Neural correlates of lexicon and grammar: Evidence from the production, reading, and judgment of inflection in aphasia

Cited by 177 publications

References 195 publications

Verb inflections in agrammatic aphasia: Encoding of tense features☆

Verb inflections in agrammatic aphasia: Encoding of tense features☆

Right-hemispheric brain activation correlates to language performance

Inflectional Morphology and Language Disorders

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