Manipulating instructions strategically affects reliance on the ventral-lexical reading stream: Converging evidence from neuroimaging and reaction time

Cummine, Jacqueline; Gould, Layla; Zhou, Crystal; Hrybouski, Stan; Siddiqi, Zohaib; Chouinard, Brea; Borowsky, Ron

doi:10.1016/j.bandl.2012.04.009

Cited by 43 publications

(42 citation statements)

References 57 publications

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“…These results are in agreement with several anatomical connectivity studies (e.g., Friederici, 2011; Cummine et al, 2013; Menjot De Champfleur et al, 2013) suggesting that the anatomical ventral stream encompasses three anatomical fasciculi (see e.g., Duffau et al, 2009; Dick and Tremblay, 2012): the inferior longitudinal (ILF), the uncinated (UF), and the inferior fronto-occipital (IFOF) fasciculi. In support of the ventral pathway, and in relation with our results, several studies suggest that the IFOF is a direct pathway enabling rapid connectivity from vOTC → vIFG (Duffau et al, 2005; Dick and Tremblay, 2012; Sarubbo et al, 2013).…”

Section: Discussionsupporting

confidence: 90%

“…Anatomical connections between these regions depend on the uncinate, inferior fronto-occipital and inferior longitudinal fasciculus (see Weiller et al, 2011). Overall, the ventral stream plays an important role in lexical retrieval and semantic processing (Yeatman et al, 2012; Cummine et al, 2013; Mahoney et al, 2013; Menjot De Champfleur et al, 2013; Shinoura et al, 2013). …”

Section: Introductionmentioning

confidence: 99%

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Effective Connectivity between Ventral Occipito-Temporal and Ventral Inferior Frontal Cortex during Lexico-Semantic Processing. A Dynamic Causal Modeling Study

Perrone‐Bertolotti

Kauffmann

Pichat

et al. 2017

Front. Hum. Neurosci.

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It has been suggested that dorsal and ventral pathways support distinct aspects of language processing. Yet, the full extent of their involvement and their inter-regional connectivity in visual word recognition is still unknown. Studies suggest that they might reflect the dual-route model of reading, with the dorsal pathway more involved in grapho-phonological conversion during phonological tasks, and the ventral pathway performing lexico-semantic access during semantic tasks. Furthermore, this subdivision is also suggested at the level of the inferior frontal cortex, involving ventral and dorsal parts for lexico-semantic and phonological processing, respectively. In the present study, we assessed inter-regional brain connectivity and task-induced modulations of brain activity during a phoneme detection and semantic categorization tasks, using fMRI in healthy subject. We used a dynamic causal modeling approach to assess inter-regional connectivity and task demand modulation within the dorsal and ventral pathways, including the following network components: the ventral occipito-temporal cortex (vOTC; dorsal and ventral), the superior temporal gyrus (STG; dorsal), the dorsal inferior frontal gyrus (dIFG; dorsal), and the ventral IFG (vIFG; ventral). We report three distinct inter-regional interactions supporting orthographic information transfer from vOTC to other language regions (vOTC -> STG, vOTC -> vIFG and vOTC -> dIFG) regardless of task demands. Moreover, we found that (a) during semantic processing (direct ventral pathway) the vOTC -> vIFG connection strength specifically increased and (b) a lack of modulation of the vOTC -> dIFG connection strength by the task that could suggest a more general involvement of the dorsal pathway during visual word recognition. Results are discussed in terms of anatomo-functional connectivity of visual word recognition network.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Effective Connectivity between Ventral Occipito-Temporal and Ventral Inferior Frontal Cortex during Lexico-Semantic Processing. A Dynamic Causal Modeling Study

Perrone‐Bertolotti

Kauffmann

Pichat

et al. 2017

Front. Hum. Neurosci.

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“…Both routes operate in parallel in word reading, but the degree of their engagement varies across different types of words within a script as well as across different scripts. Specifically, assembled phonology utilizes grapheme-to-phoneme mapping and is mainly used to read unfamiliar regular words (e.g., “bucolic”) and pseudowords (e.g., “grem”), whereas addressed phonology relies on direct associations between visual words and their sounds and is mainly used to read familiar words (i.e., “tree”) and exception (or irregular) words (e.g., “pint”) (Coltheart et al, 2001; Cummine et al, 2013). In contrast to the dual-route model, the triangle model of reading emphasizes interactive parallel processing of orthographic, phonological, and semantic information (Harm and Seidenberg, 2004; Plaut et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

Native language experience shapes neural basis of addressed and assembled phonologies

et al. 2015

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Previous studies have suggested differential engagement of addressed and assembled phonologies in reading Chinese and alphabetic languages (e.g., English) and the modulatory role of native language in learning to read a second language. However, it is not clear whether native language experience shapes the neural mechanisms of addressed and assembled phonologies. To address this question, we trained native Chinese and native English speakers to read the same artificial language (based on Korean Hangul) either through addressed (i.e., whole-word mapping) or assembled (i.e., grapheme-to-phoneme mapping) phonology. We found that, for both native Chinese and native English speakers, addressed phonology relied on the regions in the ventral pathway, whereas assembled phonology depended on the regions in the dorsal pathway. More importantly, we found that the neural mechanisms of addressed and assembled phonologies were shaped by native language experience. Specifically, two key regions for addressed phonology (i.e., the left middle temporal gyrus and right inferior temporal gyrus) showed greater activation for addressed phonology in native Chinese speakers, while one key region for assembled phonology (i.e., the left supramarginal gyrus) showed more activation for assembled phonology in native English speakers. These results provide direct neuroimaging evidence for the effect of native language experience on the neural mechanisms of phonological access in a new language and support the assimilation-accommodation hypothesis.

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“…Recent research has shown that there are probably multiple routes used in skilled reading depending on the task and the stimuli (Jobard et al, 2011;Richardson et al, 2011;Seghier et al, 2012;Cummine et al, 2013;Graves et al, 2014). Richardson et al (2011) identified three potential processing streams from occipital to temporal cortical areas: a ventral lexico-semantic route, a dorsal phonological route, and an intermediate route encompassing partially both ventral and dorsal routes.…”

Section: Model -Pathwaysmentioning

confidence: 99%

The neural bases of the pseudohomophone effect: Phonological constraints on lexico-semantic access in reading

et al. 2015

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We investigated phonological processing in normal readers to answer the question to what extent phonological recoding is active during silent reading and if or how it guides lexico-semantic access. We addressed this issue by looking at pseudohomophone and baseword frequency effects in lexical decisions with event-related functional magnetic resonance imaging (fMRI). The results revealed greater activation in response to pseudohomophones than for well-controlled pseudowords in the left inferior/superior frontal and middle temporal cortex, left insula, and left superior parietal lobule. Furthermore, we observed a baseword frequency effect for pseudohomophones (e.g., FEAL) but not for pseudowords (e.g., FEEP). This baseword frequency effect was qualified by activation differences in bilateral angular and left supramarginal, and bilateral middle temporal gyri for pseudohomophones with low- compared to high-frequency basewords. We propose that lexical decisions to pseudohomophones involves phonology-driven lexico-semantic activation of their basewords and that this is converging neuroimaging evidence for automatically activated phonological representations during silent reading in experienced readers.

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Manipulating instructions strategically affects reliance on the ventral-lexical reading stream: Converging evidence from neuroimaging and reaction time

Cited by 43 publications

References 57 publications

Effective Connectivity between Ventral Occipito-Temporal and Ventral Inferior Frontal Cortex during Lexico-Semantic Processing. A Dynamic Causal Modeling Study

Effective Connectivity between Ventral Occipito-Temporal and Ventral Inferior Frontal Cortex during Lexico-Semantic Processing. A Dynamic Causal Modeling Study

Native language experience shapes neural basis of addressed and assembled phonologies

The neural bases of the pseudohomophone effect: Phonological constraints on lexico-semantic access in reading

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