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Psychological Bulletin, 1978
Recent investigations of lexical and syntactic aspects of language comprehension in aphasia are reviewed. It is argued that these studies support theoretical assumptions concerning the functional independence of various components of normal language processing. Studies of the structure of the lexicon in aphasia provide support for componential theories of lexical semantics in that different types of features of meaning can be selectively disrupted under conditions of brain damage. Studies of sentence comprehension support the existence of a syntactic mechanism that is independent of lexically based heuristic strategies for assigning meaning. There is evidence that these independent elements of language are subserved by different portions of the dominant hemisphere of the brain. Focal brain damage can thus cause selective disruption of components, allowing the separation of elements that are highly integrated in the normal adult. Studies of aphasic language, therefore, provide a valuable source of constraints on theories of normal language processing.
Behavioral and Brain Sciences, 2000
Advances in neuroimaging technology have increased our knowledge of the neuroanatomy of higher functions of the central nervous system: It is now possible to get a glimpse of the brain while it is in action. However, this progress would not have been possible without improved understanding of the knowledge base and operations that underlie complex behavior. Parallel to the greater precision of the technology, some progress has been made in our understanding of the cognitive architecture that underlies certain behavioral domains. In the study of brain-language relations, theoretical developments in linguistics have gone hand in hand with imaging, making a joint contribution to behavioral neurology. After several decades of the study of language and the brain from a linguistic angle, there is now a relatively dense body of facts that can be seriously evaluated. This target article will review central results and use them to motivate some novel conclusions about the representation of language in the human cerebral cortex. The discussion will revolve around the choice of unit of behavioral analysis and its theoretical import. An outlook on language derived from current linguistic theory can lead to a new and more precise picture of language and the brain.
Annual Review of Neuroscience, 1988
Research Article, 2024
This study analyses relationships between language, cognition and neural mechanisms using the famous theories proposed by genius linguists and neurolinguists including Chomsky, Pinker, Bates and Boroditsky. A multimodal approach was used to integrate the neurobiological investigations of the pathways in the brain, cognitive analyses and the treatment instances of the subject with aphasia. Specifically, this research is designed to acquire knowledge of the neurobiological basics of language and its cognitive foundation. 1 Currently, standard neuroimaging allows visualization of areas of the brain involved in language processing through fMRI and EEG, measuring actual neural responses during language tasks, thus showing the intricate relationship between the neural networks and cognitive systems. The case studies serve as a source of information to potential users who want to know about the pluses and minuses of the changes in neural and cognitive processes in communication and thought comprehension. The study results relate to the whole idea of language processing as they tackle the issue of theory formation, clinical intervention and varied applications that may later be made. Delimitations focus on established theories and limited primary data collection, emphasizing the need for future research to explore additional dimensions and evolving perspectives in these dynamic fields.
Neuropsychologia, 1978
A probe paradigm was used to assess memory for the surface structure of sentences in a group of anterior (Broca's) and a group of posterior (Wernicke's) aphasics. Three types of sentences were used: active, passive and center-embedded sentences. Results showed that for both patient groups memory for function words was especially impaired relative to the patient's ability to recover content words. Further, both groups had marked difficulties in remembering center-embedded sentences. A second experiment rules out the possibility that this latter result was due to the extra syntactic complexity of the center-embedded sentences. Results from both experiments were interpreted as indicating that neither anterior nor posterior aphasics have normal surface structure memory representations and that the aphasic's memory span for sentence material may be severely limited.
Experimental Brain Research, 2001
A syntactic and a semantic task were performed by German-speaking healthy subjects and aphasics with lesions in the dominant left hemisphere. In both tasks, pictures of objects were presented that had to be classified by pressing buttons. The classification was into grammatical gender in the syntactic task (masculine or feminine gender?) and into semantic category in the semantic task (man-or nature made?). Behavioral data revealed a significant Group by Task interaction, with aphasics showing most pronounced problems with syntax. Brain event-related potentials 300-600 ms following picture onset showed different task-dependent laterality patterns in the two groups. In controls, the syntax task induced a left-lateralized negative ERP, whereas the semantic task produced more symmetric responses over the hemispheres. The opposite was the case in the patients, where, paradoxically, stronger laterality of physiological brain responses emerged in the semantic task than in the syntactic task. We interpret these data based on neuro-psycholinguistic models of word processing and current theories about the roles of the hemispheres in language recovery.
Brain and Language, 2001
We provide data on the neurological basis of two semantic operations at the sentence level: aspectual coercion and complement coercion. These operations are characterized by being purely semantic in nature; that is, they lack morphosyntactic reflections. Yet, the operations are mandatory (i.e., they are indispensable for the semantic well formedness of a sentence). Results indicate that, whereas Broca's patients have little or no trouble understanding sentences requiring these operations (performance was above chance for all conditions), Wernicke's patients performed at normal-like levels only for sentences that did not require these operations. These findings suggest that sentence-level semantic operations rely very specifically on the integrity of the cortical area associated with Wernicke's aphasia, but not on the region corresponding to Broca's aphasia. In the context of other findings from lesion and imaging studies, this evidence allows a view of the cortical distribution of language capacity that is drawn along a linguistic line, one which distinguishes syntactic from semantic operations.
Brain and Language, 2008
We report on three experiments that provide a real-time processing perspective on the poor comprehension of Broca's aphasic patients for non-canonically structured sentences. In the first experiment we presented sentences (via a Cross Modal Lexical Priming (CMLP) paradigm) to Broca's patients at a normal rate of speech. Unlike the pattern found with unimpaired control participants, we observed a general slowing of lexical activation and a concomitant delay in the formation of syntactic dependencies involving ''moved'' constituents and empty elements. Our second experiment presented these same sentences at a slower rate of speech. In this circumstance, Broca's patients formed syntactic dependencies as soon as they were structurally licensed (again, a different pattern from that demonstrated by the unimpaired control group). The third experiment used a sentence-picture matching paradigm to chart Broca's comprehension for non-canonically structured sentences (presented at both normal and slow rates). Here we observed significantly better scores in the slow rate condition. We discuss these findings in terms of the functional commitment of the left anterior cortical region implicated in Broca's aphasia and conclude that this region is crucially involved in the formation of syntactically-governed dependency relations, not because it supports knowledge of syntactic dependencies, but rather because it supports the real-time implementation of these specific representations by sustaining, at the least, a lexical activation rise-time parameter. Published by Elsevier Inc.
Dao: A Journal of Comparative Philosophy, 2020
Bitácora Urbano Territorial, 2022
International Journal of Evaluation and Research in Education (IJERE)
English Studies in Canada, 1996
Philosophical Studies, 2006
المجلة المصرية للدراسات التجارية, 2018
Optics and Lasers in Engineering, 2009
Sustainability
Journal of Theoretical and Applied Electronic Commerce Research, 2022
Journal of Tropical Medicine
Tenth IEEE International Conference on Computer Vision (ICCV'05) Volume 1, 2005
E3S Web of Conferences, 2023
Journal of Fluid Mechanics, 2021
DERECHOS HUMANOS MÉXICO. REVISTA DEL CENTRO NACIONAL DE DERECHOS HUMANOS, 2006