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More than smell - COVID-19 is associated with severe impairment of smell, taste, and chemesthesis
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The shape of things to come in speech production: visual form interference during lexical access
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No lexical competition without priming: evidence from the picture–word interference paradigm
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Masked form priming is moderated by the size of the letter-order-free orthographic neighbourhood
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Subnormal sensory attenuation to self-generated speech in schizotypy: Electrophysiological evidence for a 'continuum of psychosis'
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Repetition in visual word identification: benefits and costs
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Feature overlap slows lexical selection: evidence from the picture-word interference paradigm
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Wait a second: brief delays in responding reduce focality effects in event-based prospective memory
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Knowledge, attitude and practice with respect to sleep among undergraduate medical students of Mekelle University
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Mountain high, valley low: Direction-specific effects of articulation on reaching
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Language selection in bilinguals: A spatio-temporal analysis of electric brain activity
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Rhyme processing in the brain: An ERP mapping study
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Abstract:
The event-related potential (EFP) N450 component has been described in rhyme detection tasks as a negative response elicited by non-rhyming words in comparison to rhyming ones. This response, which peaked around 450 ins over the midline and right hemisphere recording sites, has been subsequently suggested to start already at similar to 300 ms. Moreover, although, the phonological N450 has first been linked to the semantic N400 component, its cognitive nature and cerebral origin remained debated. In this study, we re-investigated the time course of the electrophysiological responses to rhyming and non-rhyming words and estimated their cerebral generators using source localization methods. Waveform analysis showed that, prior to the N450 response to non-rhyming, a slightly earlier negativity characterized the rhyming condition over left fronto-temporal electrodes and peaked at similar to 350 ms. The analysis of the ERP map series in terms of functional microstates revealed a specific map segment in the rhyming condition and another one in the non-rhyming condition. Source localization indicated that the rhyming-elicited microstate engaged predominantly left frontal and temporal areas while the non rhyming-specific response recruited temporal and parietal regions bilaterally. Our results suggest that, similar to the N400 component that is also induced by mismatch contexts, the N450 might rely on temporal generators. (c) 2006 Elsevier B.V. All rights reserved.
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Keyword:
2737 Physiology (medical); 2800 Neuroscience; 3206 Neuropsychology and Physiological Psychology; Event-Related Potentials; Field Potentials; Fmri; Language; Medial Temporal-Lobe; Right-Hemisphere; Semantic Category; Spatiotemporal Analysis; Time-Course; Visual Word Recognition
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URL: https://espace.library.uq.edu.au/view/UQ:2df9a26
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