ArticleFrontiers in language sciences2023
A reconceptualization of sentence production in post-stroke agrammatic aphasia: the synergistic processing bottleneck model.
Article in Frontiers in language sciences, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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8 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Are Personal and Reflexive Pronouns Dissociated in Agrammatic Comprehension? An Individual Participant Meta-Analysis With Clinical Implications.American journal of speech-language pathology · 2024Pooled it
- Characterizing Verb Argument Structure in Aphasia Using Dependency Parsers.Journal of speech, language, and hearing research : JSLHR · 2026Article
- A Policy Brief on the Language-Specific Rehabilitation of Persian-Speaking Individuals with Stroke-Induced Agrammatic Aphasia.Medical journal of the Islamic Republic of Iran · 2026Article
- Static Visual Agnosia Following Awake Resection of a Left Frontal Low-Grade Glioma: A Case Report of Ventral Stream Network Disruption ("Astatopsia").Reports (MDPI) · 2025Article
- Influence of lexical and phonological variables on the production of verb tense in agrammatism.Aphasiology · 2025Article
- Data-driven classification of narrative speech characteristics in stroke aphasia distinguishes neurological and strategic contributions.Cortex; a journal devoted to the study of the nervous system and behavior · 2025Article
- Translanguaging in conversations for people with aphasia living in Greater Johannesburg, South Africa.The South African journal of communication disorders = Die Suid-Afrikaanse tydskrif vir Kommunikasieafwykings · 2025Article
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Abstract
The language production deficit in post-stroke agrammatic aphasia (PSA-G) tends to result from lesions to the left inferior frontal gyrus (LIFG) and is characterized by a triad of symptoms: fragmented sentences, errors in functional morphology, and a dearth of verbs. Despite decades of research, the mechanisms underlying production patterns in PSA-G have been difficult to characterize. Two major impediments to progress may have been the view that it is a purely morphosyntactic disorder and the (sometimes overzealous) application of linguistic theory without interceding psycholinguistic evidence. In this paper, empirical evidence is examined to present an integrated portrait of language production in PSA-G and to evaluate the assumption of a syntax-specific syndrome. In light of extant evidence, it is proposed that agrammatic language production results from a combination of morphosyntactic, phonomotor, and processing capacity limitations that cause a cumulative processing bottleneck at the point of articulatory planning. This proposed Synergistic Processing Bottleneck model of PSA-G presents a testable framework for future research. The paper ends with recommendations for future research on PSA-G.
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