Frequency effects of Chinese character processing in the brain: an event-related fMRI study

Kuo, Wen-Jui; Yeh, Ta‐Chuan; Lee, Chia‐Ying; Wu, Yan; Chou, Chi-Cher; Ho, ­Low‐Tone; Hung, Daisy L.; Tzeng, Ovid J.L.; Hsieh, Jen Chuen

doi:10.1016/s1053-8119(03)00015-6

Cited by 107 publications

(95 citation statements)

References 89 publications

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“…The common finding that free recall performance is enhanced for high-frequency compared with low-frequency words (Hall, 1954) is consistent with this interpretation, because high-frequency words likely activate more mnemonic representations. Interestingly, a recent fMRI study by Kuo et al (2003) found greater activation in the left supramarginal gyrus (close to regions showing F-selective effects in the present study) for high-frequency compared with lowfrequency words. Along the same vein, because the advantage for high-frequency words does not hold for recognition memory (Gorman, 1961), our data also suggest that these putative PPC processes may not be as important for later AR.…”

Section: Free Recall-specific Networksupporting

confidence: 83%

Differential Encoding Mechanisms for Subsequent Associative Recognition and Free Recall

Staresina

Davachi²

2006

J. Neurosci.

259

252

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Recent neuroimaging studies have successfully identified encoding mechanisms that support different forms of subsequent episodic recognition memory. In our everyday lives, however, much of our episodic memory retrieval is accomplished by means of free recall, i.e., retrieval without an external recognition cue. In this study, we used functional magnetic resonance imaging to investigate the encoding mechanisms that support later free recall and their relationship to those that support different forms of later recognition memory. First, in agreement with previous work, we found that activation in the left inferior frontal gyrus and hippocampus correlated with later associative/relational recognition. In these regions, activation was further enhanced for items later freely recalled, pointing to shared underlying relational encoding mechanisms whose magnitude of activation differentiates later successful free recall from successful associative recognition. Critically, we also found evidence for free recall-specific encoding mechanisms that did not, in our paradigm, support later associative recognition compared with item recognition. These free recall-specific effects were observed in left mid/dorsolateral prefrontal (DLPFC) and bilateral posterior parietal cortices (PPC). We speculate that the higher-level working memory operations associated with DLPFC and attention to internal mnemonic representations perhaps mediated via PPC may serve to embed an item into a rich associative network during encoding that facilitates later access to the item. Finally, activation in the perirhinal cortex correlated with successful associative binding regardless of the form of later memory, i.e., recognition or free recall, providing novel evidence for the role of the perirhinal cortex in episodic intra-item encoding.

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Section: Free Recall-specific Networksupporting

confidence: 83%

Differential Encoding Mechanisms for Subsequent Associative Recognition and Free Recall

Staresina

Davachi²

2006

J. Neurosci.

259

252

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show abstract

“…[58,65], also see Ref. [19], for a review) and Chinese characters and words [7][8][9][10]25,[40][41][42]73,74,75]. The consistent activation in the left IFG by semantic tasks in different languages appears to support the view that such an activation may have top-down modulation, rather than being driven by the lower-level features of different languages [52].…”

Section: Discussionmentioning

confidence: 95%

“…ERP and fMRI provide a complementary approach to this problem. Most fMRI studies have suggested a general pattern of left-dominated frontal activation in reading Chinese characters [7][8][9][10]25,[40][41][42][73][74][75][76]87,88]. Nevertheless, for certain brain regions such as the occipitaltemporal region, bilateral or even right-dominated activation has been reported.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cerebral asymmetry in children when reading Chinese characters

Xue

Dong

Chen

et al. 2005

Cognitive Brain Research

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This study examined cerebral asymmetry, especially in the hierarchical visual system, when reading Chinese characters. Twelve righthanded Chinese children (mean age = 11.6 years) were scanned while performing semantic and phonological tasks. Strong leftward asymmetry was found in the left inferior frontal cortex (BA44/45/47), the parietal lobule (BA40), and the cingulate cortex (BA24/32). In the visual system, we found significant left-hemispheric dominance in the fusiform cortex (BA19/37), but no asymmetry was found in the primary visual cortex (BA17/18). The differential results for the primary visual cortex versus high-order visual cortex (i.e., the fusiform cortex) are discussed in terms of the contribution of the logographic nature of Chinese characters to the asymmetry pattern in the hierarchical visual system. D 2005 Elsevier B.V. All rights reserved.Theme: Neural basis of behavior Topic: Cognition

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“…Linguistic frequency Ding, Peng, & Taft, 2004;Hue, 1992Hue, , 2003Kuo et al, 2003;Lee et al, 2004;Lee et al, 2005;Liu et al, 2006;Lo, Hue, & Tsai, 2007;Seidenberg, 1985;Taft & Zhu, 1997;Wang, 2002Wang, , 2006 Character complexity Chen, Allport, & Marshall, 1996;Perfetti & Tan, 1998;Seidenberg, 1985;Taft & Zhu, 1997;Tan, Feng, Fox, & Gao, 2001;Wang, 2002Wang, , 2006Weekes, Chen, & Lin, 1998 Type of characters Fang, Horng, & Tzeng, 1986;Hue, 1992;Leck, Weekes, & Chen, 1995;Wang, 2002Wang, , 2006Weekes et al, 1998;Weekes & Zhang, 1999 Orthographic, semantic, and phonological relationship in pairs of characters Leck et al, 1995;Liu et al, 2006;Perfetti & Tan, 1998;Weekes et al, 1998 Position of radical or phonetic component in character Chen et al, 1996;Ding et al, 2004;Feldman & Siok, 1997;Hsiao, Shillcock, & Lee, 2007;Lo et al, 2007;Wang, 2002Wang, , 2006 Character regularity Hue, 1992;Lee et al, 2005;Seidenberg, 1985;…”

Section: Variable Studymentioning

confidence: 99%

C-CAT: A computer software used to analyze and select Chinese characters and character components for psychological research

Hue

2008

Behavior Research Methods

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Frequency effects of Chinese character processing in the brain: an event-related fMRI study

Cited by 107 publications

References 89 publications

Differential Encoding Mechanisms for Subsequent Associative Recognition and Free Recall

Differential Encoding Mechanisms for Subsequent Associative Recognition and Free Recall

Cerebral asymmetry in children when reading Chinese characters

C-CAT: A computer software used to analyze and select Chinese characters and character components for psychological research

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