Topographical distribution of the auditory N400 component during lexical decision and recognition memory tasks

Tachibana, Hideki; Minamoto, Hideaki; Takeda, Masanaka; Sugita, Minoru

doi:10.1016/s0531-5131(01)00818-4

Cited by 2 publications

(2 citation statements)

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“…The auditory N400 usually has a more frontal topological distribution than the visual N400 (Holcomb and Anderson, 1993 ; Kutas and Federmeier, 2011 ). In young population, the auditory N400 tends to have a frontal distribution (Curran et al, 1993 ; Tachibana et al, 2002 ). The source of N400 is believed to lie in the frontal and temporal brain areas (Maess et al, 2006 ; Lau et al, 2008 ), starting from 250 ms in the posterior half of the left superior temporal gyrus, migrating forward and ventrally to the left temporal lobe by 365 ms, and then moving to the right anterior temporal lobe and both frontal lobes after 370 ms (Kutas and Federmeier, 2011 ).…”

Section: Erp Components Reflecting Bottom-up and Top-down Processingmentioning

confidence: 99%

“…For example, the reduction caused by lexical tone priming should have a greater right hemisphere advantage (equivalent to a less left hemisphere advantage) compared to that of consonants, whereas the reduction caused by non-words should be greater in the left hemisphere compared to that of words. Considering the topographic distributions of auditory P2 and N400 (Curran et al, 1993 ; Tachibana et al, 2002 ; Luck, 2005 ) as well as the auditory brain regions involved in the tone priming tasks (Wong et al, 2008 ), In Experiment 2, we examined the ERP waveforms in the posterior (P3, P4) and frontal (F3, F4) electrode groups.…”

Section: Erp Experiments Of Lexical Tone Perceptionmentioning

confidence: 99%

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Temporal relation between top-down and bottom-up processing in lexical tone perception

Shuai

Gong

2014

Front. Behav. Neurosci.

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Speech perception entails both top-down processing that relies primarily on language experience and bottom-up processing that depends mainly on instant auditory input. Previous models of speech perception often claim that bottom-up processing occurs in an early time window, whereas top-down processing takes place in a late time window after stimulus onset. In this paper, we evaluated the temporal relation of both types of processing in lexical tone perception. We conducted a series of event-related potential (ERP) experiments that recruited Mandarin participants and adopted three experimental paradigms, namely dichotic listening, lexical decision with phonological priming, and semantic violation. By systematically analyzing the lateralization patterns of the early and late ERP components that are observed in these experiments, we discovered that: auditory processing of pitch variations in tones, as a bottom-up effect, elicited greater right hemisphere activation; in contrast, linguistic processing of lexical tones, as a top-down effect, elicited greater left hemisphere activation. We also found that both types of processing co-occurred in both the early (around 200 ms) and late (around 300–500 ms) time windows, which supported a parallel model of lexical tone perception. Unlike the previous view that language processing is special and performed by dedicated neural circuitry, our study have elucidated that language processing can be decomposed into general cognitive functions (e.g., sensory and memory) and share neural resources with these functions.

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