A bibliometric comparison of grammatical development in spoken and sign languages: Thematic evolution and persistent keywords
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This study offers a bibliometric comparison of grammatical research in spoken and signlanguages, focusing on thematic evolution and key anchors. Drawing on 22,947 spokenand 712 sign language articles (1989–2024), we applied Biblioshiny to extract andvisualize bibliometric indicators. Research periods were segmented using threedata-driven metrics—Annual Scientific Production, Average Citations per Year, andTrend Topics—enabling modality-specific periodization. Thematic evolution analysesrevealed a parallel three-phase trajectory in both modalities: foundational, growth, andexpansion. Spoken language research showed greater diversification, especially inpsycholinguistic and syntactic domains, whereas sign language studies remained centeredon modality-specific areas such as visual processing and accessibility. Persistent keywordanalysis underscored shared anchors (e.g., acquisition, syntax, perception) alongsidemodality-specific emphases. Despite dataset limits, this study advances a multimodalframework for grammar research, highlights gaps in sign language syntax andpsycholinguistic modeling, and outlines directions for cross-modal integration.
Abstract
This study offers a bibliometric comparison of grammatical research in spoken and signlanguages, focusing on thematic evolution and key anchors. Drawing on 22,947 spokenand 712 sign language articles (1989–2024), we applied Biblioshiny to extract andvisualize bibliometric indicators. Research periods were segmented using threedata-driven metrics—Annual Scientific Production, Average Citations per Year, andTrend Topics—enabling modality-specific periodization. Thematic evolution analysesrevealed a parallel three-phase trajectory in both modalities: foundational, growth, andexpansion. Spoken language research showed greater diversification, especially inpsycholinguistic and syntactic domains, whereas sign language studies remained centeredon modality-specific areas such as visual processing and accessibility. Persistent keywordanalysis underscored shared anchors (e.g., acquisition, syntax, perception) alongsidemodality-specific emphases. Despite dataset limits, this study advances a multimodalframework for grammar research, highlights gaps in sign language syntax andpsycholinguistic modeling, and outlines directions for cross-modal integration.