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1
Enhanced activations in syntax-related regions for multilinguals while acquiring a new language
In: Sci Rep (2021)
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2
Merge-Generability as the Key Concept of Human Language: Evidence From Neuroscience
Tanaka, Kyohei; Nakamura, Isso; Ohta, Shinri. - : Frontiers Media S.A., 2019
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3
Dissociating Effects of Scrambling and Topicalization within the Left Frontal and Temporal Language Areas: An fMRI Study in Kaqchikel Maya
Ohta, Shinri; Koizumi, Masatoshi; Sakai, Kuniyoshi L.. - : Frontiers Media S.A., 2017
Abstract: Some natural languages grammatically allow different types of changing word orders, such as object scrambling and topicalization. Scrambling and topicalization are more related to syntax and semantics/phonology, respectively. Here we hypothesized that scrambling should activate the left frontal regions, while topicalization would affect the bilateral temporal regions. To examine such distinct effects in our functional magnetic resonance imaging study, we targeted the Kaqchikel Maya language, a Mayan language spoken in Guatemala. In Kaqchikel, the syntactically canonical word order is verb-object-subject (VOS), but at least three non-canonical word orders (i.e., SVO, VSO, and OVS) are also grammatically allowed. We used a sentence-picture matching task, in which the participants listened to a short Kaqchikel sentence and judged whether a picture matched the meaning of the sentence. The advantage of applying this experimental paradigm to an understudied language such as Kaqchikel is that it will allow us to validate the universality of linguistic computation in the brain. We found that the conditions with scrambled sentences [+scrambling] elicited significant activation in the left inferior frontal gyrus and lateral premotor cortex, both of which have been proposed as grammar centers, indicating the effects of syntactic loads. In contrast, the conditions without topicalization [-topicalization] resulted in significant activation in bilateral Heschl’s gyrus and superior temporal gyrus, demonstrating that the syntactic and phonological processes were clearly dissociated within the language areas. Moreover, the pre-supplementary motor area and left superior/middle temporal gyri were activated under relatively demanding conditions, suggesting their supportive roles in syntactic or semantic processing. To exclude any semantic/phonological effects of the object-subject word orders, we performed direct comparisons while making the factor of topicalization constant, and observed localized activations in the left inferior frontal gyrus and lateral premotor cortex. These results establish that the types of scrambling and topicalization have different impacts on the specified language areas. These findings further indicate that the functional roles of these left frontal and temporal regions involve linguistic aspects themselves, namely syntax versus semantics/phonology, rather than output/input aspects of speech processing.
Keyword: Psychology
URL: https://doi.org/10.3389/fpsyg.2017.00748
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5422526/
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4
Differential Signatures of Second Language Syntactic Performance and Age on the Structural Properties of the Left Dorsal Pathway
Yamamoto, Kayako; Sakai, Kuniyoshi L.. - : Frontiers Media S.A., 2017
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5
Activation changes of the left inferior frontal gyrus for the factors of construction and scrambling in a sentence
TANAKA, Kyohei; OHTA, Shinri; KINNO, Ryuta. - : The Japan Academy, 2017
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6
The Dorsal Rather than Ventral Pathway Better Reflects Individual Syntactic Abilities in Second Language
Yamamoto, Kayako; Sakai, Kuniyoshi L.. - : Frontiers Media S.A., 2016
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7
Subliminal enhancement of predictive effects during syntactic processing in the left inferior frontal gyrus: an MEG study
Iijima, Kazuki; Sakai, Kuniyoshi L.. - : Frontiers Media S.A., 2014
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8
Neural Mechanisms Underlying the Computation of Hierarchical Tree Structures in Mathematics
Nakai, Tomoya; Sakai, Kuniyoshi L.. - : Public Library of Science, 2014
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9
Functional and anatomical correlates of word-, sentence-, and discourse-level integration in sign language
Inubushi, Tomoo; Sakai, Kuniyoshi L.. - : Frontiers Media S.A., 2013
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10
Syntactic Computation in the Human Brain: The Degree of Merger as a Key Factor
Ohta, Shinri; Fukui, Naoki; Sakai, Kuniyoshi L.. - : Public Library of Science, 2013
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11
Computational principles of syntax in the regions specialized for language: integrating theoretical linguistics and functional neuroimaging
Ohta, Shinri; Fukui, Naoki; Sakai, Kuniyoshi L.. - : Frontiers Media S.A., 2013
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12
Left Inferior Frontal Activations Depending on the Canonicity Determined by the Argument Structures of Ditransitive Sentences: An MEG Study
Inubushi, Tomoo; Iijima, Kazuki; Koizumi, Masatoshi. - : Public Library of Science, 2012
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13
Agrammatic comprehension caused by a glioma in the left frontal cortex
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 110 (2009) 2, 71-80
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14
Syntax in a native language still continues to develop in adults: honorification judgment in Japanese
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 107 (2008) 1, 81-89
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OLC Linguistik
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15
Sign and speech: amodal commonality in left hemisphere dominance for comprehension of sentences
In: Brain. - Oxford : Oxford Univ. Press 128 (2005) 6, 1407-1417
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16
Language acquisition and brain development
In: Science. - Washington, DC : AAAS, American Assoc. for the Advancement of Science 310 (2005) 5749, 815-819
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17
Sign and speech: amodal commonality in left hemisphere dominance for comprehension of sentences
Sakai, Kuniyoshi L.; Tatsuno, Yoshinori; Suzuki, Kei. - : Oxford University Press, 2005
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18
Sign and speech: amodal commonality in left hemisphere dominance for comprehension of sentences
Sakai, Kuniyoshi L.; Tatsuno, Yoshinori; Suzuki, Kei. - : Oxford University Press, 2005
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19
Language-Related Activations in the Left Prefrontal Regions Are Differentially Modulated by Age, Proficiency, and Task Demands
Tatsuno, Yoshinori; Sakai, Kuniyoshi L.. - : Society for Neuroscience, 2005
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20
Correlated Functional Changes of the Prefrontal Cortex in Twins Induced by Classroom Education of Second Language
Sakai, Kuniyoshi L.; Miura, Kunihiko; Narafu, Nobuko. - : Oxford University Press, 2004
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