Semantic Richness and Density Effects on Language Production: Electrophysiological and Behavioral Evidence

Autor/inn/en	Rabovsky, Milena; Schad, Daniel J.; Abdel Rahman, Rasha
Titel	Semantic Richness and Density Effects on Language Production: Electrophysiological and Behavioral Evidence
Quelle	In: Journal of Experimental Psychology: Learning, Memory, and Cognition, 47 (2021) 3, S.508-517 (10 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Rabovsky, Milena) ORCID (Schad, Daniel J.) ORCID (Abdel Rahman, Rasha)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0278-7393
DOI	10.1037/xlm0000940
Schlagwörter	Semantics; Language Processing; Correlation; Inhibition; Interference (Language); Naming; Diagnostic Tests; Brain Hemisphere Functions; Pictorial Stimuli; German; Native Language; Foreign Countries; Reaction Time; Accuracy; Task Analysis; Germany (Berlin) + Suchen Sie Ihr Suchwort? Semantik; Sprachverarbeitung; Korrelation; Hemmung; Diagnostic test; Diagnostischer Test; Fantasieanregung; Deutscher; Ausland; Reaktionsvermögen; Aufgabenanalyse
Abstract	Language production ultimately aims to convey meaning. Yet words differ widely in the richness and density of their semantic representations, and these differences impact conceptual and lexical processes during speech planning. Here, we replicated the recent finding that semantic richness, measured as the number of associated semantic features according to semantic feature production norms, facilitates object naming. In contrast, intercorrelational semantic feature density, measured as the degree of intercorrelation of a concept's features, presumably resulting in the coactivation of closely related concepts, has an inhibitory influence. We replicated the behavioral effects and investigated their relative time course and electrophysiological correlates. Both the facilitatory effect of high semantic richness and the inhibitory influence of high feature density were reflected in an increased posterior positivity starting at about 250 ms, in line with previous reports of posterior positivities in paradigms employing contextual manipulations to induce semantic interference during language production. Furthermore, amplitudes at the same posterior electrode sites were positively correlated with object naming times between about 230 and 380 ms. The observed effects follow naturally from the assumption of conceptual facilitation and simultaneous lexical competition and are difficult to explain by language production theories dismissing lexical competition. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01