The present study explores the role of individual differences in polymorphemic word recognition. Participants completed a masked priming lexical decision experiment on suffixed words in which targets could be preceded by suffix-related words (words sharing the same suffix) or by affixed primes with a different suffix. Participants also completed a monomorphemic word lexical decision and were divided in two groups (fast and slow readers) according to their performance in this task. When the suffix priming data were analyzed taking into consideration participants' reading speed as a proxy for their greater reliance on orthography or on semantics, a significant interaction between reading speed and the magnitude of the masked suffix priming effects emerged. Only slow participants showed significant priming effects, whereas faster participants showed negligible masked suffix priming effects. These results demonstrate that different reading profiles modulate the access to morphological information in a qualitatively different manner and that individual differences in reading determine the manner in which polymorphemic words are processed.
Sidarta RibeiroUniversidade Federal do Rio Grande do Norte -UFRN, Natal, BR RESUMO: O presente estudo avalia se o modo como acessamos as palavras é influenciado pela estrutura do léxico; mais especificamente, se há diferenças na forma como reconhecemos palavras simples e compostas do Português Brasileiro (PB). Para isto, aplicamos dois testes de acesso lexical a 80 participantes para determinar (i) se há diferenças nos tempos de reação e acurácia de resposta entre palavras simples e compostas, e (ii) se essas diferenças se correlacionam com a frequência de uso dessas palavras. Os resultados do experimento 1 fornecem evidências para ocorrências de decomposição no reconhecimento de palavras compostas do PB. No entanto, as latências de resposta das palavras de altas frequências dos experimentos 1 e 2 confirmam as predições de modelos de listagem plena. Para explicar esses resultados sugerimos um mecanismo de acesso lexical em rota dupla, em que cada tipo de palavra é acessado mais rapidamente dependendo da sua frequência e de propriedades morfológicas. PALAVRAS-CHAVE: Acesso Lexical; compostos; Morfologia; Psicolinguística. RESUMEN: Este estudio investiga si la estructura del léxico influye en la forma en la que reconocemos las palabras; específicamente, si hay diferencias en cómo reconocemos las palabras simples y compuestas del Portugués Brasileño (BP). Para esto, dos pruebas de decisión léxica se aplicaron a 80 participantes para verificar (i) si hay diferencias en la tasa de errores y tiempo de respuesta a palabras simples y compuestas, y (ii) si estas diferencias se correlacionan con la su frecuencia de uso. Los resultados del experimento 1 evidencian la presencia de descomposición en el reconocimiento de palabras compuestas del PB. Sin embargo, las latencias de respuesta a palabras de altas frecuencias de los experimentos 1 y 2, confirman las predicciones de los modelos de representación plena. Para explicar estos resultados sugerimos un mecanismo de doble ruta de acceso al léxico, según el cual cada tipo de palabra es reconocido más rápidamente en función de su frecuencia y características morfológicas. PALABRAS CLAVE: acceso al léxico; compuestos; Morfología; Psicolingüística.ABSTRACT: The present study aims at verifying whether the way we access words is influenced by the lexicon structure of the language; more specifically, whether there is any difference in the way we recognize Brazilian Portuguese (BP) single and compound words. Two lexical decision tests were applied to eighty participants to determine (i) whether there are differences in mean reaction times and response accuracy between simple and compound words, and (ii) whether these differences correlate with the frequency of use of these words. Results of Experiment 1 provide evidence that there is a role for decomposition in the recognition of BP compounds. However, latencies of high frequency words in lexical decision tests 1 and 2 are consistent with predictions of full listing models. To explain these results we suggest a double route mechanis...
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