Ambiguous word in context: an event-related potential analysis of the time course of meaning activation  

Oleh:

Kutas, Marta ; Petten, Cyma Van

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Memory and Language (Full Text) vol. 26 no. 2 (Apr. 1987), page 188-208.
Fulltext: 26_02_Van Petten_Kutas.pdf (1.75MB)

Ketersediaan

Perpustakaan PKBB Nomor Panggil: 405/JML/26 Non-tandon: tidak ada Tandon: 1

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Isi artikel

Words with a single spelling and pronunciation but at least two distinct meanings (homographs) were used to terminate sentences of moderate contextual constraint. Following each sentence, a target was presented which was either (I) related to the contextually biased meaning of the homograph, (2) related to the unbiased meaning, or (3) unrelated to either meaning. Across subjects, the stimulus onset asynchrony (SOA) between homograph and target was either short (200 ms) or long (700 ms). The naming latencies recorded in Experiment I revealed priming for both contextually appropriate and inappropriate related targets at the short SOA but for only the contextually appropriate targets at the long SOA. The event-related potentials elicited by these same stimuli in Experiment 2 showed a similar pattern of priming at the long SOA. At the short SOA, however, the priming effect for contextually inappropriate targets had a later onset than that for contextually appropriate targets. We interpret these data as indicating that both meanings of ambiguous words are not activated a: the same time. The late priming effect for contextually inappropriate targets is discussed in terms of backward priming.

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