Left-lateralized N170 response to unpronounceable pseudo but not false Chinese characters—the key role of orthography

Lin, Si En; Chen, H.C.; Zhao, Jing; Li, S.; He, Shunping; Weng, Xuchu

doi:10.1016/j.neuroscience.2011.05.071

Cited by 85 publications

(113 citation statements)

References 45 publications

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“…Lehmann & Skrandies, 1980), our result indicates that the language of word reading modulated the brain networks involved in reading. The timing of the topographic modulation corresponds to the latency that has previously been associated to processing stages involved in grapheme to phoneme mapping (Ashby et al, 2009;Bentin et al, 1999;Carreiras et al, 2009;Grainger et al, 2006;Hauk et al, 2006;Huang et al, 2004;Proverbio et al, 2004;Simon et al, 2004Simon et al, , 2006, occurring between letter identification (Appelbaum, Liotti, Perez, Fox, & Woldorff, 2009;Brem et al, 2006;Lin et al, 2011;Martin, Nazir, Thierry, Paulignan, & Demonet, 2006;Maurer, Brandeis, & McCandliss, 2005) and semantic processing (Bentin et al, 1999;Simon et al, 2006). Since the words were matched in terms of lexical characteristics (length, frequency and neighborhood size) and only differed in terms of grapheme-to-phoneme consistency, the topographic difference most likely reflects distinct networks recruited to map graphemes and phonemes across languages.…”

Section: Discussionmentioning

confidence: 96%

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Balanced bilinguals favor lexical processing in their opaque language and conversion system in their shallow language

et al. 2015

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Referred to as orthographic depth, the degree of consistency of grapheme/phoneme correspondences varies across languages from high in shallow orthographies to low in deep orthographies. The present study investigates the impact of orthographic depth on reading route by analyzing evoked potentials to words in a deep (French) and shallow (German) language presented to highly proficient bilinguals. ERP analyses to German and French words revealed significant topographic modulations 240-280 ms post-stimulus onset, indicative of distinct brain networks engaged in reading over this time window. Source estimations revealed that these effects stemmed from modulations of left insular, inferior frontal and dorsolateral regions (German > French) previously associated to phonological processing. Our results show that reading in a shallow language was associated to a stronger engagement of phonological pathways than reading in a deep language. Thus, the lexical pathways favored in word reading are reinforced by phonological networks more strongly in the shallow than deep orthography.

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Section: Discussionmentioning

confidence: 96%

“…However, differences related to physical form of stimuli/letter identification have been linked to earlier time windows (<200 ms; Appelbaum et al, 2009;Brem et al, 2006;Lin et al, 2011;Martin et al, 2006;Maurer et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

Balanced bilinguals favor lexical processing in their opaque language and conversion system in their shallow language

et al. 2015

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“…With the goal of identifying a potential electrophysiological marker for reading expertise in Chinese, we examined the properties of N170 in response to Chinese characters and three other types of control stimuli, in a task designed to minimize the influences of high-level linguistic modulation on N170 [11,12] . Moreover, the present study included an additional behavioral experiment to further ensure that there was no difference in attentional load across different visual stimuli.…”

Section: Discussionmentioning

confidence: 99%

“…In sharp contrast, the existing results about the lateralization of N170 in response to Chinese characters (and Japanese Kanji) are largely mixed. Both bilateral [6][7][8] and left-lateralized [4,[9][10][11][12] N170 effects have been reported. Thus, unlike in alphabetic scripts, the lateralization of N170 in terms of the direct comparison of its amplitude across the two hemispheres is unlikely to serve as a marker for 578 reading expertise in Chinese.…”

Section: Introductionmentioning

confidence: 99%

“…Multiple control stimuli were used to better characterize the detailed selectivity of N170 for Chinese characters. In addition to minimizing potential high-level linguistic (particularly phonological) modulation [11,12] , the task we used also controlled for differences of attention load across stimulus types. Attentional bias is another common confounding factor in studies of the neuronal correlates of visual perception such as visual word recognition [18,19] .…”

Section: Introductionmentioning

confidence: 99%

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Selectivity of N170 in the left hemisphere as an electrophysiological marker for expertise in reading Chinese

Zhao

Lin

et al. 2012

Neurosci. Bull.

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Objective The left-lateralized N170, an event-related potential component consistently shown in response to alphabetic words, is a robust electrophysiological marker for reading expertise in an alphabetic language. In contrast, such a marker is lacking for expertise in reading Chinese, because the existing results about the lateralization of N170 for Chinese characters are mixed, reflecting complicated factors such as top-down modulation that contribute to the relative magnitudes of N170 in the left and right hemispheres. The present study aimed to explore a potential electrophysiological marker for reading expertise in Chinese with minimal top-down influence. Methods We recorded N170 responses to Chinese characters and three kinds of control stimuli in a content-irrelevant task, minimizing potential top-down effects.Results Direct comparison of the N170 amplitude in response to Chinese characters between the hemispheres showed a marginally significant left-lateralization effect. However, detailed analyses of N170 in each hemisphere revealed a more robust pattern of left-lateralization -the N170 in the left but not the right hemisphere differentiated Chinese characters from control stimuli. Conclusion These results suggest that the selectivity of N170 (a greater N170 in response to Chinese characters than to control stimuli) within the left hemisphere rather than the hemispheric difference of N170 with regard to Chinese characters is an electrophysiological marker for expertise in reading Chinese.

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Overreliance on Sublexical Phonological Processing in Visual Word Recognition for Third‐Grade Mandarin‐Speaking Dyslexic Children

Zhang,

Liu,

Chen

et al. 2024

Dyslexia

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Developmental dyslexic (DD) children encounter challenges in sublexical orthographic, phonological, and semantic processing. However, there exists limited knowledge about the predominance of these three types of sublexical processing in visual word recognition among DD children. To investigate this issue, we screened 50 DD and 47 typically developing (TD) third‐grade native Chinese‐speaking children, and employed a picture‐novel character mapping task. We constructed four types of options: semantic radical‐legal position pseudo characters (e.g., ), phonetic radical‐legal position pseudo characters (e.g., ), semantic radical‐illegal position false characters (e.g., ), and phonetic radical‐illegal position false characters (e.g., ). Results in the multilevel logistic mixed‐effects regression analysis revealed that semantic radical‐legal position pseudo characters were more predictive for the trial‐level participants' response of TD children, whereas phonetic radical‐legal position pseudo characters were more predictive for the trial‐level participants' response of DD children. Consistently, semantic radical‐legal position pseudo characters were poorer predictors, while phonetic radical‐legal position pseudo characters were stronger predictors for the trial‐level participants' response of DD children than for that of TD children. These findings collectively suggest the predominance of sublexical orthographic and phonological processing in DD children's visual word recognition, and DD children may rely more on the sublexical phonological processing relative to TD children.

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Left-lateralized N170 response to unpronounceable pseudo but not false Chinese characters—the key role of orthography

Cited by 85 publications

References 45 publications

Balanced bilinguals favor lexical processing in their opaque language and conversion system in their shallow language

Balanced bilinguals favor lexical processing in their opaque language and conversion system in their shallow language

Selectivity of N170 in the left hemisphere as an electrophysiological marker for expertise in reading Chinese

Overreliance on Sublexical Phonological Processing in Visual Word Recognition for Third‐Grade Mandarin‐Speaking Dyslexic Children

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