Grammatical class effects in brain-damaged patients: functional locus of noun and verb deficit.
نویسندگان
چکیده
Two patients are described with grammatical class dissociation: CG, a semantic-dementia patient who presented a disproportionate impairment of nouns compared to verbs; SA, a patient with a left parietal lesion who presented impaired sentence production and a disproportionate deficit for verbs compared to nouns. The results are discussed within the current models on semantic memory and lexical access.
منابع مشابه
Language-invariant verb processing regions in Spanish-English bilinguals
Nouns and verbs are fundamental grammatical building blocks of all languages. Studies of brain-damaged patients and healthy individuals have demonstrated that verb processing can be dissociated from noun processing at a neuroanatomical level. In cases where bilingual patients have a noun or verb deficit, the deficit has been observed in both languages. This suggests that the noun-verb distincti...
متن کاملDeveloping a Semantic Similarity Judgment Test for Persian Action Verbs and Non-action Nouns in Patients With Brain Injury and Determining its Content Validity
Objective: Brain trauma evidences suggest that the two grammatical categories of noun and verb are processed in different regions of the brain due to differences in the complexity of grammatical and semantic information processing. Studies have shown that the verbs belonging to different semantic categories lead to neural activity in different areas of the brain, and action verb processing is r...
متن کاملNouns and verbs in the brain: grammatical class and task specific effects as revealed by fMRI.
The wide variety of techniques and tasks used to study the neural correlates of noun and verb processing has resulted in a body of inconsistent evidence. We performed a functional magnetic resonance imaging (fMRI) experiment to detect grammatical class effects that generalize across tasks. A total of 12 participants undertook a grammatical-class switching task (GCST), in which they were present...
متن کاملNeuroanatomically separable effects of imageability and grammatical class during single-word comprehension.
The present study characterizes the neural correlates of noun and verb imageability and addresses the question of whether components of the neural network supporting word recognition can be separately modified by variations in grammatical class and imageability. We examined the effect of imageability on BOLD signal during single-word comprehension of nouns and verbs. Subjects made semantic simi...
متن کاملDoes real grammatical class effect in word production exist in isolating languages?
Selective noun or verb deficits in word production observed in some aphasic patients have helped us understand how grammatical knowledge is represented in the brain (e.g., Bi, Han, Shu, & Caramazza, 2007; Caramazza & Hillis, 1991; see reviews in Laiacona & Caramazza, 2004; Shapiro & Caramazza, 2003a). It has been shown that such patients are not a coherent group but are produced by various caus...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Brain and language
دوره 85 1 شماره
صفحات -
تاریخ انتشار 2003