51
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Matar S, Pylkkänen L, Marantz A. Left occipital and right frontal involvement in syntactic category prediction: MEG evidence from Standard Arabic. Neuropsychologia 2019; 135:107230. [DOI: 10.1016/j.neuropsychologia.2019.107230] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 09/25/2019] [Accepted: 10/11/2019] [Indexed: 02/07/2023]
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52
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Shared neural resources of rhythm and syntax: An ALE meta-analysis. Neuropsychologia 2019; 137:107284. [PMID: 31783081 DOI: 10.1016/j.neuropsychologia.2019.107284] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 11/25/2019] [Indexed: 11/20/2022]
Abstract
A growing body of evidence has highlighted behavioral connections between musical rhythm and linguistic syntax, suggesting that these abilities may be mediated by common neural resources. Here, we performed a quantitative meta-analysis of neuroimaging studies using activation likelihood estimate (ALE) to localize the shared neural structures engaged in a representative set of musical rhythm (rhythm, beat, and meter) and linguistic syntax (merge movement, and reanalysis) operations. Rhythm engaged a bilateral sensorimotor network throughout the brain consisting of the inferior frontal gyri, supplementary motor area, superior temporal gyri/temporoparietal junction, insula, intraparietal lobule, and putamen. By contrast, syntax mostly recruited the left sensorimotor network including the inferior frontal gyrus, posterior superior temporal gyrus, premotor cortex, and supplementary motor area. Intersections between rhythm and syntax maps yielded overlapping regions in the left inferior frontal gyrus, left supplementary motor area, and bilateral insula-neural substrates involved in temporal hierarchy processing and predictive coding. Together, this is the first neuroimaging meta-analysis providing detailed anatomical overlap of sensorimotor regions recruited for musical rhythm and linguistic syntax.
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53
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Discourse management during speech perception: A functional magnetic resonance imaging (fMRI) study. Neuroimage 2019; 202:116047. [DOI: 10.1016/j.neuroimage.2019.116047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 07/09/2019] [Accepted: 07/22/2019] [Indexed: 11/22/2022] Open
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54
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Intonation guides sentence processing in the left inferior frontal gyrus. Cortex 2019; 117:122-134. [DOI: 10.1016/j.cortex.2019.02.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 12/22/2018] [Accepted: 02/11/2019] [Indexed: 11/18/2022]
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55
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No language unification without neural feedback: How awareness affects sentence processing. Neuroimage 2019; 202:116063. [PMID: 31376519 DOI: 10.1016/j.neuroimage.2019.116063] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 06/22/2019] [Accepted: 07/30/2019] [Indexed: 01/08/2023] Open
Abstract
How does the human brain combine a finite number of words to form an infinite variety of sentences? According to the Memory, Unification and Control (MUC) model, sentence processing requires long-range feedback from the left inferior frontal cortex (LIFC) to left posterior temporal cortex (LPTC). Single word processing however may only require feedforward propagation of semantic information from sensory regions to LPTC. Here we tested the claim that long-range feedback is required for sentence processing by reducing visual awareness of words using a masking technique. Masking disrupts feedback processing while leaving feedforward processing relatively intact. Previous studies have shown that masked single words still elicit an N400 ERP effect, a neural signature of semantic incongruency. However, whether multiple words can be combined to form a sentence under reduced levels of awareness is controversial. To investigate this issue, we performed two experiments in which we measured electroencephalography (EEG) while 40 subjects performed a masked priming task. Words were presented either successively or simultaneously, thereby forming a short sentence that could be congruent or incongruent with a target picture. This sentence condition was compared with a typical single word condition. In the masked condition we only found an N400 effect for single words, whereas in the unmasked condition we observed an N400 effect for both unmasked sentences and single words. Our findings suggest that long-range feedback processing is required for sentence processing, but not for single word processing.
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56
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Kroczek LO, Gunter TC, Rysop AU, Friederici AD, Hartwigsen G. Contributions of left frontal and temporal cortex to sentence comprehension: Evidence from simultaneous TMS-EEG. Cortex 2019; 115:86-98. [DOI: 10.1016/j.cortex.2019.01.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 08/03/2018] [Accepted: 01/15/2019] [Indexed: 02/03/2023]
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57
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Matchin W, Liao CH, Gaston P, Lau E. Same words, different structures: An fMRI investigation of argument relations and the angular gyrus. Neuropsychologia 2019; 125:116-128. [DOI: 10.1016/j.neuropsychologia.2019.01.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 01/09/2019] [Accepted: 01/31/2019] [Indexed: 01/01/2023]
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58
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Woodhead ZVJ, Bradshaw AR, Wilson AC, Thompson PA, Bishop DVM. Testing the unitary theory of language lateralization using functional transcranial Doppler sonography in adults. ROYAL SOCIETY OPEN SCIENCE 2019; 6:181801. [PMID: 31032035 PMCID: PMC6458414 DOI: 10.1098/rsos.181801] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 02/12/2019] [Indexed: 05/08/2023]
Abstract
Hemispheric dominance for language can vary from task to task, but it is unclear if this reflects error of measurement or independent lateralization of different language systems. We used functional transcranial Doppler sonography to assess language lateralization within the middle cerebral artery territory in 37 adults (seven left-handers) on six tasks, each given on two occasions. Tasks taxed different aspects of language function. A pre-registered structural equation analysis was used to compare models of means and covariances. For most people, a single lateralized factor explained most of the covariance between tasks. A minority, however, showed dissociation of asymmetry, giving a second factor. This was mostly derived from a receptive task, which was highly reliable but not lateralized. The results suggest that variation in the strength of language lateralization reflects true individual differences and not just error of measurement. The inclusion of several tasks in a laterality battery makes it easier to detect cases of atypical asymmetry.
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59
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Matchin W, Brodbeck C, Hammerly C, Lau E. The temporal dynamics of structure and content in sentence comprehension: Evidence from fMRI-constrained MEG. Hum Brain Mapp 2019; 40:663-678. [PMID: 30259599 PMCID: PMC6865621 DOI: 10.1002/hbm.24403] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 09/04/2018] [Accepted: 09/07/2018] [Indexed: 01/10/2023] Open
Abstract
Humans have a striking capacity to combine words into sentences that express new meanings. Previous research has identified key brain regions involved in this capacity, but little is known about the time course of activity in these regions, as hemodynamic methods such as fMRI provide little insight into temporal dynamics of neural activation. We performed an MEG experiment to elucidate the temporal dynamics of structure and content processing within four brain regions implicated by fMRI data from the same experiment: the temporo-parietal junction (TPJ), the posterior temporal lobe (PTL), the anterior temporal lobe (ATL), and the anterior inferior frontal gyrus (IFG). The TPJ showed increased activity for both structure and content near the end of the sentence, consistent with a role in incremental interpretation of event semantics. The PTL, a region not often associated with core aspects of syntax, showed a strong early effect of structure, consistent with predictive parsing models, and both structural and semantic context effects on function words. These results provide converging evidence that the PTL plays an important role in lexicalized syntactic processing. The ATL and IFG, regions traditionally associated with syntax, showed minimal effects of sentence structure. The ATL, PTL and IFG all showed effects of semantic content: increased activation for real words relative to nonwords. Our fMRI-guided MEG investigation therefore helps identify syntactic and semantic aspects of sentence comprehension in the brain in both spatial and temporal dimensions.
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Affiliation(s)
- William Matchin
- Department of Communication Sciences and DisordersUniversity of South CarolinaColumbiaSouth Carolina
| | - Christian Brodbeck
- Institute for Systems ResearchUniversity of MarylandCollege ParkMaryland
| | | | - Ellen Lau
- Department of LinguisticsUniversity of MarylandCollege ParkMaryland
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60
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Chen L, Wu J, Fu Y, Kang H, Feng L. Neural substrates of word category information as the basis of syntactic processing. Hum Brain Mapp 2019; 40:451-464. [PMID: 30240492 PMCID: PMC6865558 DOI: 10.1002/hbm.24386] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 08/27/2018] [Accepted: 08/27/2018] [Indexed: 01/19/2023] Open
Abstract
The ability to use word category information (WCI) for syntactic structure building has been hypothesized to be the essence of human language faculty. The neural substrate of the ability of using the WCI for the complex syntactic hierarchical structure processing, however, is yet unknown. Therefore, we directly conducted an fMRI experiment by using a pseudo-Chinese artificial language with syntactic structures containing a center-embedded relative clause. Thirty non-Chinese native (Korean) speakers were randomly divided into two groups: one acquired WCI and WCI-based syntactic rules (the WCI group) before the scanning session, and the other did not (the non-WCI group). Both groups were required to judge the grammaticality of the testing sentences, with critical long-distance dependencies between two elements (the main verb and the relativizer). Behaviorally, the WCI group's accuracy was significantly higher and its reaction time was shorter. The scanning results showed that the left superior temporal gyrus (STG) and Broca's area were more strongly activated for the WCI group, and the dynamic causal modeling analyses revealed a distinct effective connectivity pattern for this group. Therefore, the present research, for the first time, reveals that the activation of and the functional connectivity between Broca's area and the left STG play a critical role in the ability of the rule-based use of the WCI which is crucial for complex hierarchical structure building, and might be substantially corresponding to the "labeling competence" within the linguistic framework.
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Affiliation(s)
- Luyao Chen
- College of Chinese Language and Culture, Beijing Normal UniversityBeijingChina
- Department of NeuropsychologyMax Plank Institute for Human Cognitive and Brain SciencesLeipzigGermany
| | - Junjie Wu
- State Key Laboratory of Cognitive Neuroscience and LearningBeijing Normal UniversityBeijingChina
| | - Yongben Fu
- State Key Laboratory of Cognitive Neuroscience and LearningBeijing Normal UniversityBeijingChina
| | - Huntae Kang
- College of Chinese Language and Culture, Beijing Normal UniversityBeijingChina
| | - Liping Feng
- College of Chinese Language and Culture, Beijing Normal UniversityBeijingChina
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61
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Novén M, Schremm A, Nilsson M, Horne M, Roll M. Cortical thickness of Broca's area and right homologue is related to grammar learning aptitude and pitch discrimination proficiency. BRAIN AND LANGUAGE 2019; 188:42-47. [PMID: 30572263 DOI: 10.1016/j.bandl.2018.12.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 11/23/2018] [Accepted: 12/12/2018] [Indexed: 06/09/2023]
Abstract
Aptitude for and proficiency in acquiring new languages varies in the human population but their neural bases are largely unknown. We investigated the influence of cortical thickness on language learning predictors measured by the LLAMA tests and a pitch-change discrimination test. The LLAMA tests are first language-independent assessments of language learning aptitude for vocabulary, phonetic working memory, sound-symbol correspondence (not used in this study), and grammatical inferencing. Pitch perception proficiency is known to predict aptitude for learning new phonology. Results show a correlation between scores in a grammatical meaning-inferencing aptitude test and cortical thickness of Broca's area (r(30) = 0.65, p = 0.0202) and other frontal areas (r(30) = 0.66, p = 0.0137). Further, a correlation was found between proficiency in discriminating pitch-change direction and cortical thickness of the right Broca homologue (r(30) = 0.57, p = 0.0006). However, no correlations were found for aptitude for vocabulary learning or phonetic working memory. Results contribute to locating cortical regions important for language-learning aptitude.
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Affiliation(s)
- Mikael Novén
- Department of Linguistics and Phonetics, Lund University, 221 00, Sweden.
| | - Andrea Schremm
- Department of Linguistics and Phonetics, Lund University, 221 00, Sweden.
| | - Markus Nilsson
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Radiology, Lund 221 00, Sweden.
| | - Merle Horne
- Department of Linguistics and Phonetics, Lund University, 221 00, Sweden.
| | - Mikael Roll
- Department of Linguistics and Phonetics, Lund University, 221 00, Sweden.
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62
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Wu CY, Zaccarella E, Friederici AD. Universal neural basis of structure building evidenced by network modulations emerging from Broca's area: The case of Chinese. Hum Brain Mapp 2018; 40:1705-1717. [PMID: 30468022 DOI: 10.1002/hbm.24482] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 10/23/2018] [Accepted: 11/12/2018] [Indexed: 01/27/2023] Open
Abstract
The basic steps in building up language involve binding words of different categories into a hierarchical structure. To what extent these steps are universal or differ across languages is an open issue. Here we examine the neural dynamics of phrase structure building in Chinese-a language that in contrast to other languages heavily depends on contextual semantic information. We used functional magnetic resonance imaging and dynamic causal modeling to identify the relevant brain regions and their dynamic relations. Language stimuli consisted of syntax-driving determiners, semantics-embedded classifiers, and nonverbal symbols making up for two-component sequences manipulated by the factors structure (phrase/list) and number of words (2-word/1-word). Processing phrases compared with word lists elicited greater activation in the anterior part of Broca's area, Brodmann area (BA) 45, and the left posterior superior/middle temporal gyri (pSTG/pMTG), while processing two words against one word led to stronger involvement of the left BA 45, BA 44, and insula. Differential network modulations emerging from subparts of Broca's area revealed that phrasal construction in particular highly modulated the direct connection from BA 44 to left pMTG, suggesting BA 44's primary role in phrase structure building. Conversely, the involvement of BA 45 rather appears sensitive to the reliance on lexico-semantic information in Chinese. Against the background of previous findings from other languages, the present results indicate that phrase structure building has a universal neural basis within the left fronto-temporal network. Most importantly, they provide the first evidence demonstrating that the structure-building network may be modulated by language-specific characteristics.
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Affiliation(s)
- Chiao-Yi Wu
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.,Centre for Research and Development in Learning, Nanyang Technological University, Singapore, Singapore
| | - Emiliano Zaccarella
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Angela D Friederici
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
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63
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Associated valence impacts early visual processing of letter strings: Evidence from ERPs in a cross-modal learning paradigm. COGNITIVE AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2018; 19:98-108. [DOI: 10.3758/s13415-018-00647-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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64
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Söderström P, Horne M, Mannfolk P, van Westen D, Roll M. Rapid syntactic pre-activation in Broca's area: Concurrent electrophysiological and haemodynamic recordings. Brain Res 2018; 1697:76-82. [PMID: 29883624 DOI: 10.1016/j.brainres.2018.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 05/04/2018] [Accepted: 06/04/2018] [Indexed: 10/14/2022]
Abstract
Listeners are constantly trying to predict what the speaker will say next. We concurrently measured the electrophysiological and haemodynamic correlates of syntactic pre-activation, investigating when and where the brain processes speech melody cues to upcoming word order structure. Pre-activation of syntactic structure was reflected in a left-lateralised pre-activation negativity (PrAN), which was subserved by Broca's area in the left inferior frontal gyrus, as well as the contiguous left anterior insula.
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Affiliation(s)
- Pelle Söderström
- Department of Linguistics, Centre for Languages and Literature, Lund University, Box 201, 221 00 Lund, Sweden; MARCS Institute, Western Sydney University, Sydney, Australia.
| | - Merle Horne
- Department of Linguistics, Centre for Languages and Literature, Lund University, Box 201, 221 00 Lund, Sweden.
| | - Peter Mannfolk
- Skane University Hospital, Department of Medical Imaging and Physiology, Lund, Sweden.
| | - Danielle van Westen
- Lund University, Skane University Hospital, Department of Clinical Sciences, Diagnostic Radiology, Lund, Sweden.
| | - Mikael Roll
- Department of Linguistics, Centre for Languages and Literature, Lund University, Box 201, 221 00 Lund, Sweden.
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65
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Cohen L, Billard A. Social babbling: The emergence of symbolic gestures and words. Neural Netw 2018; 106:194-204. [PMID: 30081346 DOI: 10.1016/j.neunet.2018.06.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 06/20/2018] [Accepted: 06/27/2018] [Indexed: 10/28/2022]
Abstract
Language acquisition theories classically distinguish passive language understanding from active language production. However, recent findings show that brain areas such as Broca's region are shared in language understanding and production. Furthermore, these areas are also implicated in understanding and producing goal-oriented actions. These observations question the passive view of language development. In this work, we propose a cognitive developmental model of symbol acquisition, coherent with an active view of language learning. For that purpose, we introduce the concept of social babbling. In this view, symbols are learned in the same way as goal-oriented actions in the context of specific caregiver-infant interactions. We show that this model allows a virtual agent to learn both symbolic words and gestures to refer to objects while interacting with a caregiver. We validate our model by reproducing results from studies on the influence of parental responsiveness on infants language acquisition.
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Affiliation(s)
- Laura Cohen
- Learning Algorithms and Systems Laboratory, School of Engineering, EPFL, Lausanne, Switzerland.
| | - Aude Billard
- Learning Algorithms and Systems Laboratory, School of Engineering, EPFL, Lausanne, Switzerland
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66
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Trimmel K, van Graan AL, Caciagli L, Haag A, Koepp MJ, Thompson PJ, Duncan JS. Left temporal lobe language network connectivity in temporal lobe epilepsy. Brain 2018; 141:2406-2418. [DOI: 10.1093/brain/awy164] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 04/24/2018] [Indexed: 11/13/2022] Open
Affiliation(s)
- Karin Trimmel
- Epilepsy Society MRI Unit, Epilepsy Society, Chalfont St Peter, SL9 0LR, UK
- Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK
- Department of Neurology, Medical University of Vienna, 1090-Vienna, Austria
| | - Andre L van Graan
- Epilepsy Society MRI Unit, Epilepsy Society, Chalfont St Peter, SL9 0LR, UK
- Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK
| | - Lorenzo Caciagli
- Epilepsy Society MRI Unit, Epilepsy Society, Chalfont St Peter, SL9 0LR, UK
- Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK
| | - Anja Haag
- Epilepsy Society MRI Unit, Epilepsy Society, Chalfont St Peter, SL9 0LR, UK
- Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK
| | - Matthias J Koepp
- Epilepsy Society MRI Unit, Epilepsy Society, Chalfont St Peter, SL9 0LR, UK
- Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK
| | - Pamela J Thompson
- Epilepsy Society MRI Unit, Epilepsy Society, Chalfont St Peter, SL9 0LR, UK
- Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK
| | - John S Duncan
- Epilepsy Society MRI Unit, Epilepsy Society, Chalfont St Peter, SL9 0LR, UK
- Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, UK
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67
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The right inferior frontal gyrus processes nested non-local dependencies in music. Sci Rep 2018; 8:3822. [PMID: 29491454 PMCID: PMC5830458 DOI: 10.1038/s41598-018-22144-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 02/16/2018] [Indexed: 12/01/2022] Open
Abstract
Complex auditory sequences known as music have often been described as hierarchically structured. This permits the existence of non-local dependencies, which relate elements of a sequence beyond their temporal sequential order. Previous studies in music have reported differential activity in the inferior frontal gyrus (IFG) when comparing regular and irregular chord-transitions based on theories in Western tonal harmony. However, it is unclear if the observed activity reflects the interpretation of hierarchical structure as the effects are confounded by local irregularity. Using functional magnetic resonance imaging (fMRI), we found that violations to non-local dependencies in nested sequences of three-tone musical motifs in musicians elicited increased activity in the right IFG. This is in contrast to similar studies in language which typically report the left IFG in processing grammatical syntax. Effects of increasing auditory working demands are moreover reflected by distributed activity in frontal and parietal regions. Our study therefore demonstrates the role of the right IFG in processing non-local dependencies in music, and suggests that hierarchical processing in different cognitive domains relies on similar mechanisms that are subserved by domain-selective neuronal subpopulations.
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68
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Moreno A, Limousin F, Dehaene S, Pallier C. Brain correlates of constituent structure in sign language comprehension. Neuroimage 2018; 167:151-161. [PMID: 29175202 PMCID: PMC6044420 DOI: 10.1016/j.neuroimage.2017.11.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 10/27/2017] [Accepted: 11/19/2017] [Indexed: 01/16/2023] Open
Abstract
During sentence processing, areas of the left superior temporal sulcus, inferior frontal gyrus and left basal ganglia exhibit a systematic increase in brain activity as a function of constituent size, suggesting their involvement in the computation of syntactic and semantic structures. Here, we asked whether these areas play a universal role in language and therefore contribute to the processing of non-spoken sign language. Congenitally deaf adults who acquired French sign language as a first language and written French as a second language were scanned while watching sequences of signs in which the size of syntactic constituents was manipulated. An effect of constituent size was found in the basal ganglia, including the head of the caudate and the putamen. A smaller effect was also detected in temporal and frontal regions previously shown to be sensitive to constituent size in written language in hearing French subjects (Pallier et al., 2011). When the deaf participants read sentences versus word lists, the same network of language areas was observed. While reading and sign language processing yielded identical effects of linguistic structure in the basal ganglia, the effect of structure was stronger in all cortical language areas for written language relative to sign language. Furthermore, cortical activity was partially modulated by age of acquisition and reading proficiency. Our results stress the important role of the basal ganglia, within the language network, in the representation of the constituent structure of language, regardless of the input modality.
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Affiliation(s)
- Antonio Moreno
- Cognitive Neuroimaging Unit, CEA, INSERM, Université Paris-Sud, Université Paris-Saclay, NeuroSpin Center, 91191 Gif/Yvette, France.
| | - Fanny Limousin
- Cognitive Neuroimaging Unit, CEA, INSERM, Université Paris-Sud, Université Paris-Saclay, NeuroSpin Center, 91191 Gif/Yvette, France
| | - Stanislas Dehaene
- Cognitive Neuroimaging Unit, CEA, INSERM, Université Paris-Sud, Université Paris-Saclay, NeuroSpin Center, 91191 Gif/Yvette, France; Collège de France, 11 Place Marcelin Berthelot, 75005 Paris, France
| | - Christophe Pallier
- Cognitive Neuroimaging Unit, CEA, INSERM, Université Paris-Sud, Université Paris-Saclay, NeuroSpin Center, 91191 Gif/Yvette, France.
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69
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Segaert K, Mazaheri A, Hagoort P. Binding language: structuring sentences through precisely timed oscillatory mechanisms. Eur J Neurosci 2018; 48:2651-2662. [DOI: 10.1111/ejn.13816] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 12/06/2017] [Accepted: 12/14/2017] [Indexed: 01/22/2023]
Affiliation(s)
- Katrien Segaert
- School of Psychology; University of Birmingham; Edgbaston Birmingham UK
- Centre for Human Brain Health; University of Birmingham; Birmingham UK
- Max Planck Institute for Psycholinguistics; Nijmegen The Netherlands
| | - Ali Mazaheri
- School of Psychology; University of Birmingham; Edgbaston Birmingham UK
- Centre for Human Brain Health; University of Birmingham; Birmingham UK
| | - Peter Hagoort
- Max Planck Institute for Psycholinguistics; Nijmegen The Netherlands
- Centre for Cognitive Neuroimaging; Donders Institute for Brain; Cognition and Behaviour; Radboud University Nijmegen; Nijmegen The Netherlands
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70
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Speech Prosodies of Different Emotional Categories Activate Different Brain Regions in Adult Cortex: an fNIRS Study. Sci Rep 2018; 8:218. [PMID: 29317758 PMCID: PMC5760650 DOI: 10.1038/s41598-017-18683-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 12/14/2017] [Indexed: 11/12/2022] Open
Abstract
Emotional expressions of others embedded in speech prosodies are important for social interactions. This study used functional near-infrared spectroscopy to investigate how speech prosodies of different emotional categories are processed in the cortex. The results demonstrated several cerebral areas critical for emotional prosody processing. We confirmed that the superior temporal cortex, especially the right middle and posterior parts of superior temporal gyrus (BA 22/42), primarily works to discriminate between emotional and neutral prosodies. Furthermore, the results suggested that categorization of emotions occurs within a high-level brain region–the frontal cortex, since the brain activation patterns were distinct when positive (happy) were contrasted to negative (fearful and angry) prosody in the left middle part of inferior frontal gyrus (BA 45) and the frontal eye field (BA8), and when angry were contrasted to neutral prosody in bilateral orbital frontal regions (BA 10/11). These findings verified and extended previous fMRI findings in adult brain and also provided a “developed version” of brain activation for our following neonatal study.
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71
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Zaccarella E, Meyer L, Makuuchi M, Friederici AD. Building by Syntax: The Neural Basis of Minimal Linguistic Structures. Cereb Cortex 2018; 27:411-421. [PMID: 26464476 DOI: 10.1093/cercor/bhv234] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Language comes in utterances in which words are bound together according to a simple rule-based syntactic computation (merge), which creates linguistic hierarchies of potentially infinite length-phrases and sentences. In the current functional magnetic resonance imaging study, we compared prepositional phrases and sentences-both involving merge-to word lists-not involving merge-to explore how this process is implemented in the brain. We found that merge activates the pars opercularis of the left inferior frontal gyrus (IFG; Brodmann Area [BA] 44) and a smaller region in the posterior superior temporal sulcus (pSTS). Within the IFG, sentences engaged a more anterior portion of the area (pars triangularis, BA 45)-compared with phrases-which showed activity peak in BA 44. As prepositional phrases, in contrast to sentences, do not contain verbs, activity in BA 44 may reflect structure-building syntactic processing, while the involvement of BA 45 may reflect the encoding of propositional meaning initiated by the verb. The pSTS appears to work together with the IFG during thematic role assignment not only at the sentential level, but also at the phrasal level. The present results suggest that merge, the process of binding words together into syntactic hierarchies, is primarily supported by BA 44 in the IFG.
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Affiliation(s)
- Emiliano Zaccarella
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig 04103, Germany.,Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin 10099, Germany
| | - Lars Meyer
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig 04103, Germany
| | - Michiru Makuuchi
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig 04103, Germany.,National Rehabilitation Center for Persons with Disabilities, Section of Neuropsychology, Tokorozawa 8555, Japan
| | - Angela D Friederici
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig 04103, Germany.,Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin 10099, Germany
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72
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Rampinini AC, Handjaras G, Leo A, Cecchetti L, Ricciardi E, Marotta G, Pietrini P. Functional and spatial segregation within the inferior frontal and superior temporal cortices during listening, articulation imagery, and production of vowels. Sci Rep 2017; 7:17029. [PMID: 29208951 PMCID: PMC5717247 DOI: 10.1038/s41598-017-17314-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 11/24/2017] [Indexed: 11/09/2022] Open
Abstract
Classical models of language localize speech perception in the left superior temporal and production in the inferior frontal cortex. Nonetheless, neuropsychological, structural and functional studies have questioned such subdivision, suggesting an interwoven organization of the speech function within these cortices. We tested whether sub-regions within frontal and temporal speech-related areas retain specific phonological representations during both perception and production. Using functional magnetic resonance imaging and multivoxel pattern analysis, we showed functional and spatial segregation across the left fronto-temporal cortex during listening, imagery and production of vowels. In accordance with classical models of language and evidence from functional studies, the inferior frontal and superior temporal cortices discriminated among perceived and produced vowels respectively, also engaging in the non-classical, alternative function - i.e. perception in the inferior frontal and production in the superior temporal cortex. Crucially, though, contiguous and non-overlapping sub-regions within these hubs performed either the classical or non-classical function, the latter also representing non-linguistic sounds (i.e., pure tones). Extending previous results and in line with integration theories, our findings not only demonstrate that sensitivity to speech listening exists in production-related regions and vice versa, but they also suggest that the nature of such interwoven organisation is built upon low-level perception.
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Affiliation(s)
| | | | - Andrea Leo
- IMT School for Advanced Studies, Lucca, 55100, Italy
| | | | | | - Giovanna Marotta
- Department of Philology, Literature and Linguistics, University of Pisa, Pisa, 56100, Italy
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73
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Hutton JS, Phelan K, Horowitz-Kraus T, Dudley J, Altaye M, DeWitt T, Holland SK. Shared Reading Quality and Brain Activation during Story Listening in Preschool-Age Children. J Pediatr 2017; 191:204-211.e1. [PMID: 29173308 PMCID: PMC5728185 DOI: 10.1016/j.jpeds.2017.08.037] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 07/07/2017] [Accepted: 08/16/2017] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To explore the relationship between maternal shared reading quality (verbal interactivity and engagement) and brain function during story listening in at-risk, preschool-age children, in the context of behavioral evidence and American Academy of Pediatrics, recommendations. STUDY DESIGN In this cross-sectional study, 22 healthy, 4-year-old girls from low socioeconomic status households completed functional magnetic resonance imaging using an established story listening task, followed by videotaped observation of uncoached mother-daughter reading of the same, age-appropriate picture book. Shared reading quality was independently scored applying dialogic reading and other evidence-based criteria reflecting interactivity and engagement, and applied as a predictor of neural activation during the functional magnetic resonance imaging task, controlling for income and maternal education. RESULTS Shared reading quality scores were generally low and negatively correlated with maternal distraction by smartphones (P < .05). Scores were positively correlated with activation in left-sided brain areas supporting expressive and complex language, social-emotional integration, and working memory (P <.05, false discovery rate corrected). CONCLUSIONS Maternal shared reading quality is positively correlated with brain activation supporting complex language, executive function, and social-emotional processing in at-risk, preschool-age children. These findings represent novel neural biomarkers of how this modifiable aspect of home reading environment may influence foundational emergent literacy skills, reinforce behavioral evidence and American Academy of Pediatrics, recommendations, and underscore the potential of dialogic reading interventions to promote healthy brain development, especially in at-risk households.
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Affiliation(s)
- John S. Hutton
- Division of General and Community Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH,Reading and Literacy Discovery Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Kieran Phelan
- Division of General and Community Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Tzipi Horowitz-Kraus
- Division of General and Community Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH,Reading and Literacy Discovery Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH,Pediatric Neuroimaging Research Consortium, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH,Communication Sciences Research Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Jonathan Dudley
- Reading and Literacy Discovery Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH,Communication Sciences Research Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Mekibib Altaye
- Pediatric Neuroimaging Research Consortium, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH,Division of Radiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH,Communication Sciences Research Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Tom DeWitt
- Division of General and Community Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH,Reading and Literacy Discovery Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Scott K. Holland
- Reading and Literacy Discovery Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH,Pediatric Neuroimaging Research Consortium, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH,Division of Radiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH,Communication Sciences Research Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
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74
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Tsesmeli SN. Spelling and Meaning of Compounds in the Early School Years through Classroom Games: An Intervention Study. Front Psychol 2017; 8:2071. [PMID: 29238316 PMCID: PMC5712978 DOI: 10.3389/fpsyg.2017.02071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 11/14/2017] [Indexed: 11/13/2022] Open
Abstract
The study aimed to evaluate the intervention effects on spelling and meaning of compounds by Greek students via group board games in classroom settings. The sample consisted of 60 pupils, who were attending the first and second grade of two primary schools in Greece. Each grade-class was divided into an intervention (N = 29 children) and a control group (N = 31 children). Before intervention, groups were evaluated by standardized tests of reading words/pseudowords, spelling words, and vocabulary. Students were also assessed on compound knowledge by a word analogy task, a meaning task and a spelling task. The experimental design of the intervention included a pre-test, a training program, and a post-test. The pre- and post-assessments consisted of the spelling and the meaning tasks entailing equally morphologically transparent and opaque compounds. The training program was based on word families (N = 10 word families, 56 trained items, 5 sessions) and aimed to offer instruction of morphological decomposition and meaning of words. The findings showed that training was effective in enhancing the spelling and most notably the meaning of compounds. A closer inspection of intervention data in terms of morphological transparency, revealed that training group of first graders improved significantly both on transparent and opaque compounds, while the degree of gains was larger on opaque items for the second graders. These findings are consistent with the experimental literature and particularly optimistic for the literacy enhancement of typically developing children in regular classrooms.
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Affiliation(s)
- Styliani N Tsesmeli
- Division of Psychology, Department of Primary Education, University of Patras, Rion, Greece
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75
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Differential cortical contribution of syntax and semantics: An fMRI study on two-word phrasal processing. Cortex 2017; 96:105-120. [DOI: 10.1016/j.cortex.2017.09.002] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 07/17/2017] [Accepted: 09/05/2017] [Indexed: 11/17/2022]
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76
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The core and beyond in the language-ready brain. Neurosci Biobehav Rev 2017; 81:194-204. [DOI: 10.1016/j.neubiorev.2017.01.048] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 01/18/2017] [Accepted: 01/20/2017] [Indexed: 11/18/2022]
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77
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Zaccarella E, Friederici A. The neurobiological nature of syntactic hierarchies. Neurosci Biobehav Rev 2017; 81:205-212. [DOI: 10.1016/j.neubiorev.2016.07.038] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 07/28/2016] [Accepted: 07/28/2016] [Indexed: 01/23/2023]
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78
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Goucha T, Zaccarella E, Friederici A. A revival of Homo loquens as a builder of labeled structures: Neurocognitive considerations. Neurosci Biobehav Rev 2017; 81:213-224. [DOI: 10.1016/j.neubiorev.2017.01.036] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 01/24/2017] [Accepted: 01/26/2017] [Indexed: 12/16/2022]
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79
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Friederici AD, Chomsky N, Berwick RC, Moro A, Bolhuis JJ. Language, mind and brain. Nat Hum Behav 2017; 1:713-722. [DOI: 10.1038/s41562-017-0184-4] [Citation(s) in RCA: 137] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 07/21/2017] [Indexed: 11/10/2022]
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80
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Zaccarella E, Schell M, Friederici AD. Reviewing the functional basis of the syntactic Merge mechanism for language: A coordinate-based activation likelihood estimation meta-analysis. Neurosci Biobehav Rev 2017; 80:646-656. [DOI: 10.1016/j.neubiorev.2017.06.011] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 06/23/2017] [Accepted: 06/26/2017] [Indexed: 12/17/2022]
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81
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Ash S, Jester C, York C, Kofman OL, Langey R, Halpin A, Firn K, Dominguez Perez S, Chahine L, Spindler M, Dahodwala N, Irwin DJ, McMillan C, Weintraub D, Grossman M. Longitudinal decline in speech production in Parkinson's disease spectrum disorders. BRAIN AND LANGUAGE 2017; 171:42-51. [PMID: 28527315 PMCID: PMC5512868 DOI: 10.1016/j.bandl.2017.05.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 05/05/2017] [Accepted: 05/08/2017] [Indexed: 05/08/2023]
Abstract
We examined narrative speech production longitudinally in non-demented (n=15) and mildly demented (n=8) patients with Parkinson's disease spectrum disorder (PDSD), and we related increasing impairment to structural brain changes in specific language and motor regions. Patients provided semi-structured speech samples, describing a standardized picture at two time points (mean±SD interval=38±24months). The recorded speech samples were analyzed for fluency, grammar, and informativeness. PDSD patients with dementia exhibited significant decline in their speech, unrelated to changes in overall cognitive or motor functioning. Regression analysis in a subset of patients with MRI scans (n=11) revealed that impaired language performance at Time 2 was associated with reduced gray matter (GM) volume at Time 1 in regions of interest important for language functioning but not with reduced GM volume in motor brain areas. These results dissociate language and motor systems and highlight the importance of non-motor brain regions for declining language in PDSD.
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Affiliation(s)
- Sharon Ash
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States.
| | - Charles Jester
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States
| | - Collin York
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States
| | - Olga L Kofman
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States
| | - Rachel Langey
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States
| | - Amy Halpin
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States
| | - Kim Firn
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States
| | - Sophia Dominguez Perez
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States
| | - Lama Chahine
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States
| | - Meredith Spindler
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States
| | - Nabila Dahodwala
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States
| | - David J Irwin
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States
| | - Corey McMillan
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States
| | - Daniel Weintraub
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States
| | - Murray Grossman
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, United States
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82
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Sandoval M, Patterson D, Dai H, Vance CJ, Plante E. Neural Correlates of Morphology Acquisition through a Statistical Learning Paradigm. Front Psychol 2017; 8:1234. [PMID: 28798703 PMCID: PMC5529410 DOI: 10.3389/fpsyg.2017.01234] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 07/06/2017] [Indexed: 11/13/2022] Open
Abstract
The neural basis of statistical learning as it occurs over time was explored with stimuli drawn from a natural language (Russian nouns). The input reflected the "rules" for marking categories of gendered nouns, without making participants explicitly aware of the nature of what they were to learn. Participants were scanned while listening to a series of gender-marked nouns during four sequential scans, and were tested for their learning immediately after each scan. Although participants were not told the nature of the learning task, they exhibited learning after their initial exposure to the stimuli. Independent component analysis of the brain data revealed five task-related sub-networks. Unlike prior statistical learning studies of word segmentation, this morphological learning task robustly activated the inferior frontal gyrus during the learning period. This region was represented in multiple independent components, suggesting it functions as a network hub for this type of learning. Moreover, the results suggest that subnetworks activated by statistical learning are driven by the nature of the input, rather than reflecting a general statistical learning system.
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Affiliation(s)
- Michelle Sandoval
- Department of Speech, Language, and Hearing Sciences, University of Arizona, TucsonAZ, United States
| | - Dianne Patterson
- Department of Speech, Language, and Hearing Sciences, University of Arizona, TucsonAZ, United States
| | - Huanping Dai
- Department of Speech, Language, and Hearing Sciences, University of Arizona, TucsonAZ, United States
| | - Christopher J Vance
- Department of Speech, Language, and Hearing Sciences, University of Arizona, TucsonAZ, United States
| | - Elena Plante
- Department of Speech, Language, and Hearing Sciences, University of Arizona, TucsonAZ, United States
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83
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Spatiotemporal reorganization of the reading network in adult dyslexia. Cortex 2017; 92:204-221. [DOI: 10.1016/j.cortex.2017.04.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 01/05/2017] [Accepted: 04/12/2017] [Indexed: 12/31/2022]
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84
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Brouwer H, Crocker MW, Venhuizen NJ, Hoeks JCJ. A Neurocomputational Model of the N400 and the P600 in Language Processing. Cogn Sci 2017; 41 Suppl 6:1318-1352. [PMID: 28000963 PMCID: PMC5484319 DOI: 10.1111/cogs.12461] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 09/20/2016] [Accepted: 09/29/2016] [Indexed: 11/29/2022]
Abstract
Ten years ago, researchers using event-related brain potentials (ERPs) to study language comprehension were puzzled by what looked like a Semantic Illusion: Semantically anomalous, but structurally well-formed sentences did not affect the N400 component-traditionally taken to reflect semantic integration-but instead produced a P600 effect, which is generally linked to syntactic processing. This finding led to a considerable amount of debate, and a number of complex processing models have been proposed as an explanation. What these models have in common is that they postulate two or more separate processing streams, in order to reconcile the Semantic Illusion and other semantically induced P600 effects with the traditional interpretations of the N400 and the P600. Recently, however, these multi-stream models have been called into question, and a simpler single-stream model has been proposed. According to this alternative model, the N400 component reflects the retrieval of word meaning from semantic memory, and the P600 component indexes the integration of this meaning into the unfolding utterance interpretation. In the present paper, we provide support for this "Retrieval-Integration (RI)" account by instantiating it as a neurocomputational model. This neurocomputational model is the first to successfully simulate the N400 and P600 amplitude in language comprehension, and simulations with this model provide a proof of concept of the single-stream RI account of semantically induced patterns of N400 and P600 modulations.
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Affiliation(s)
- Harm Brouwer
- Department of Language Science and Technology, Saarland University
- Center for Language and Cognition Groningen, University of Groningen
| | | | | | - John C J Hoeks
- Center for Language and Cognition Groningen, University of Groningen
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85
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Neurophysiological dynamics of phrase-structure building during sentence processing. Proc Natl Acad Sci U S A 2017; 114:E3669-E3678. [PMID: 28416691 DOI: 10.1073/pnas.1701590114] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Although sentences unfold sequentially, one word at a time, most linguistic theories propose that their underlying syntactic structure involves a tree of nested phrases rather than a linear sequence of words. Whether and how the brain builds such structures, however, remains largely unknown. Here, we used human intracranial recordings and visual word-by-word presentation of sentences and word lists to investigate how left-hemispheric brain activity varies during the formation of phrase structures. In a broad set of language-related areas, comprising multiple superior temporal and inferior frontal sites, high-gamma power increased with each successive word in a sentence but decreased suddenly whenever words could be merged into a phrase. Regression analyses showed that each additional word or multiword phrase contributed a similar amount of additional brain activity, providing evidence for a merge operation that applies equally to linguistic objects of arbitrary complexity. More superficial models of language, based solely on sequential transition probability over lexical and syntactic categories, only captured activity in the posterior middle temporal gyrus. Formal model comparison indicated that the model of multiword phrase construction provided a better fit than probability-based models at most sites in superior temporal and inferior frontal cortices. Activity in those regions was consistent with a neural implementation of a bottom-up or left-corner parser of the incoming language stream. Our results provide initial intracranial evidence for the neurophysiological reality of the merge operation postulated by linguists and suggest that the brain compresses syntactically well-formed sequences of words into a hierarchy of nested phrases.
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86
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Liuzzi AG, Bruffaerts R, Peeters R, Adamczuk K, Keuleers E, De Deyne S, Storms G, Dupont P, Vandenberghe R. Cross-modal representation of spoken and written word meaning in left pars triangularis. Neuroimage 2017; 150:292-307. [DOI: 10.1016/j.neuroimage.2017.02.032] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 02/08/2017] [Accepted: 02/13/2017] [Indexed: 11/25/2022] Open
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87
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Yusa N, Kim J, Koizumi M, Sugiura M, Kawashima R. Social Interaction Affects Neural Outcomes of Sign Language Learning As a Foreign Language in Adults. Front Hum Neurosci 2017; 11:115. [PMID: 28408872 PMCID: PMC5374197 DOI: 10.3389/fnhum.2017.00115] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 02/23/2017] [Indexed: 11/13/2022] Open
Abstract
Children naturally acquire a language in social contexts where they interact with their caregivers. Indeed, research shows that social interaction facilitates lexical and phonological development at the early stages of child language acquisition. It is not clear, however, whether the relationship between social interaction and learning applies to adult second language acquisition of syntactic rules. Does learning second language syntactic rules through social interactions with a native speaker or without such interactions impact behavior and the brain? The current study aims to answer this question. Adult Japanese participants learned a new foreign language, Japanese sign language (JSL), either through a native deaf signer or via DVDs. Neural correlates of acquiring new linguistic knowledge were investigated using functional magnetic resonance imaging (fMRI). The participants in each group were indistinguishable in terms of their behavioral data after the instruction. The fMRI data, however, revealed significant differences in the neural activities between two groups. Significant activations in the left inferior frontal gyrus (IFG) were found for the participants who learned JSL through interactions with the native signer. In contrast, no cortical activation change in the left IFG was found for the group who experienced the same visual input for the same duration via the DVD presentation. Given that the left IFG is involved in the syntactic processing of language, spoken or signed, learning through social interactions resulted in an fMRI signature typical of native speakers: activation of the left IFG. Thus, broadly speaking, availability of communicative interaction is necessary for second language acquisition and this results in observed changes in the brain.
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Affiliation(s)
- Noriaki Yusa
- Department of English, Miyagi Gakuin Women's UniversitySendai, Japan
| | - Jungho Kim
- Department of Foreign Languages, Kyoto Women's UniversityKyoto, Japan
| | | | - Motoaki Sugiura
- Institute of Development, Aging and Cancer, Tohoku UniversitySendai, Japan
| | - Ryuta Kawashima
- Institute of Development, Aging and Cancer, Tohoku UniversitySendai, Japan
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88
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Abstract
In this review I introduce the historical context and methods of optical neuroimaging, leading to the modern use of functional near-infrared spectroscopy (fNIRS) and high-density diffuse optical tomography (HD-DOT) to study human brain function. In its most frequent application, optical neuroimaging measures a hemodynamically-mediated signal indirectly related to neural processing, similar to that captured by fMRI. Compared to other approaches to measuring human brain function, optical imaging has many advantages: it is noninvasive, frequently portable, acoustically silent, robust to motion and muscle movement, and appropriate in many situations in which fMRI is not possible (for example, due to implanted medical devices). Challenges include producing a full-brain field of view, homogenous spatial resolution, and accurate source localization. Experimentally, optical neuroimaging has been used to study phoneme, word, and sentence processing in a variety of paradigms. With continuing technical and methodological improvements the future of optical neuroimaging is increasingly bright.
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Affiliation(s)
- Jonathan E Peelle
- Department of Otolaryngology, Washington University in St. Louis, St. Louis MO USA
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89
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A contemporary framework of language processing in the human brain in the context of preoperative and intraoperative language mapping. Neuroradiology 2016; 59:69-87. [PMID: 28005160 DOI: 10.1007/s00234-016-1772-0] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Accepted: 12/05/2016] [Indexed: 02/06/2023]
Abstract
INTRODUCTION The emergence of advanced in vivo neuroimaging methods has redefined the understanding of brain function with a shift from traditional localizationist models to more complex and widely distributed neural networks. In human language processing, the traditional localizationist models of Wernicke and Broca have fallen out of favor for a dual-stream processing system involving complex networks organized over vast areas of the dominant hemisphere. The current review explores the cortical function and white matter connections of human language processing, as well as their relevance to surgical planning. METHODS We performed a systematic review of the literature with narrative data analysis. RESULTS Although there is significant heterogeneity in the literature over the past century of exploration, modern evidence provides new insight into the true cortical function and white matter anatomy of human language. Intraoperative data and postoperative outcome studies confirm a widely distributed language network extending far beyond the traditional cortical areas of Wernicke and Broca. CONCLUSIONS The anatomic distribution of language networks, based on current theories, is explored to present a modern and clinically relevant interpretation of language function. Within this framework, we present current knowledge regarding the known effects of damage to both cortical and subcortical components of these language networks. Ideally, we hope this framework will provide a common language for which to base future clinical studies in human language function.
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90
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Kepinska O, de Rover M, Caspers J, Schiller NO. Whole-brain functional connectivity during acquisition of novel grammar: Distinct functional networks depend on language learning abilities. Behav Brain Res 2016; 320:333-346. [PMID: 27993693 DOI: 10.1016/j.bbr.2016.12.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 12/06/2016] [Accepted: 12/14/2016] [Indexed: 11/18/2022]
Abstract
In an effort to advance the understanding of brain function and organisation accompanying second language learning, we investigate the neural substrates of novel grammar learning in a group of healthy adults, consisting of participants with high and average language analytical abilities (LAA). By means of an Independent Components Analysis, a data-driven approach to functional connectivity of the brain, the fMRI data collected during a grammar-learning task were decomposed into maps representing separate cognitive processes. These included the default mode, task-positive, working memory, visual, cerebellar and emotional networks. We further tested for differences within the components, representing individual differences between the High and Average LAA learners. We found high analytical abilities to be coupled with stronger contributions to the task-positive network from areas adjacent to bilateral Broca's region, stronger connectivity within the working memory network and within the emotional network. Average LAA participants displayed stronger engagement within the task-positive network from areas adjacent to the right-hemisphere homologue of Broca's region and typical to lower level processing (visual word recognition), and increased connectivity within the default mode network. The significance of each of the identified networks for the grammar learning process is presented next to a discussion on the established markers of inter-individual learners' differences. We conclude that in terms of functional connectivity, the engagement of brain's networks during grammar acquisition is coupled with one's language learning abilities.
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Affiliation(s)
- Olga Kepinska
- Leiden University Centre for Linguistics, Postbus 9515, 2300 RA Leiden, The Netherlands; Leiden Institute for Brain and Cognition, c/o LUMC, Postzone C2-S, P.O. Box 9600, 2300 RC Leiden, The Netherlands.
| | - Mischa de Rover
- Leiden Institute for Brain and Cognition, c/o LUMC, Postzone C2-S, P.O. Box 9600, 2300 RC Leiden, The Netherlands; Department of Anesthesiology, Leiden University Medical Center, Postzone P5-Q, P.O. Box 9600, 2300 RC Leiden, The Netherlands; Faculty of Social Sciences, Institute of Psychology, Clinical Psychology Unit, Pieter de la Court gebouw, Wassenaarseweg 52, 2333 AK Leiden, The Netherlands
| | - Johanneke Caspers
- Leiden University Centre for Linguistics, Postbus 9515, 2300 RA Leiden, The Netherlands; Leiden Institute for Brain and Cognition, c/o LUMC, Postzone C2-S, P.O. Box 9600, 2300 RC Leiden, The Netherlands
| | - Niels O Schiller
- Leiden University Centre for Linguistics, Postbus 9515, 2300 RA Leiden, The Netherlands; Leiden Institute for Brain and Cognition, c/o LUMC, Postzone C2-S, P.O. Box 9600, 2300 RC Leiden, The Netherlands
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91
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Hage SR, Nieder A. Dual Neural Network Model for the Evolution of Speech and Language. Trends Neurosci 2016; 39:813-829. [DOI: 10.1016/j.tins.2016.10.006] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 10/14/2016] [Accepted: 10/20/2016] [Indexed: 12/31/2022]
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92
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Tremblay P, Dick AS. Broca and Wernicke are dead, or moving past the classic model of language neurobiology. BRAIN AND LANGUAGE 2016; 162:60-71. [PMID: 27584714 DOI: 10.1016/j.bandl.2016.08.004] [Citation(s) in RCA: 224] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 06/20/2016] [Accepted: 08/16/2016] [Indexed: 05/04/2023]
Abstract
With the advancement of cognitive neuroscience and neuropsychological research, the field of language neurobiology is at a cross-roads with respect to its framing theories. The central thesis of this article is that the major historical framing model, the Classic "Wernicke-Lichtheim-Geschwind" model, and associated terminology, is no longer adequate for contemporary investigations into the neurobiology of language. We argue that the Classic model (1) is based on an outdated brain anatomy; (2) does not adequately represent the distributed connectivity relevant for language, (3) offers a modular and "language centric" perspective, and (4) focuses on cortical structures, for the most part leaving out subcortical regions and relevant connections. To make our case, we discuss the issue of anatomical specificity with a focus on the contemporary usage of the terms "Broca's and Wernicke's area", including results of a survey that was conducted within the language neurobiology community. We demonstrate that there is no consistent anatomical definition of "Broca's and Wernicke's Areas", and propose to replace these terms with more precise anatomical definitions. We illustrate the distributed nature of the language connectome, which extends far beyond the single-pathway notion of arcuate fasciculus connectivity established in Geschwind's version of the Classic Model. By illustrating the definitional confusion surrounding "Broca's and Wernicke's areas", and by illustrating the difficulty integrating the emerging literature on perisylvian white matter connectivity into this model, we hope to expose the limits of the model, argue for its obsolescence, and suggest a path forward in defining a replacement.
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Affiliation(s)
- Pascale Tremblay
- Département de Réadaptation, Faculté de Médecine, Université Laval, Québec City, QC, Canada; Centre de Recherche de l'Institut Universitaire en Santé Mentale de Québec, Québec City, QC, Canada
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93
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Modestino EJ, O'Toole P, Reinhofer A. Experiential and Doctrinal Religious Knowledge Categorization in Parkinson's Disease: Behavioral and Brain Correlates. Front Hum Neurosci 2016; 10:113. [PMID: 27047360 PMCID: PMC4801863 DOI: 10.3389/fnhum.2016.00113] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 02/29/2016] [Indexed: 11/30/2022] Open
Abstract
Recent studies suggest changes in religious cognition in a subgroup of patients with Parkinson's disease (PD e.g., Butler et al., 2011). It is unclear whether this deficit extends to both doctrinal and experiential categorization forms of religious cognition. Kapogiannis et al. (2009b) dissociated experiential and doctrinal religious knowledge to different neural networks using fMRI. We examined Kapogiannis' dissociation against the background of PD side of onset (LOPD, ROPD), assessing performance both On- and Off-medication. In the behavioral portion of the study, we used a statement classification task in combination with scholar derived test sets for experiential and doctrinal religious knowledge categorization in conjunction with neuropsychological measures. In the neuroimaging portion of the study, we expanded on Kapogiannis' study by examining the same networks in PD. The behavioral data revealed that all groups rated (categorized) the scholar derived tests of experiential and doctrinal significantly differently than the scholars. All groups, including the scholars, classified more phrases as doctrinal than experiential. Religious cognition differed in the PD groups: those with PD Off-medication and LOPD Off-medication comprehended scholar defined experiential phrases with more difficulty, making them more likely to be classified as mixed or doctrinal. This was in contrast to the subjective frequency of classification of phrases as experiential paired with a cognitive decline in PD Off-medication; whereas PD On-medication showed a positive correlation with cognitive state and subjective doctrinal classification. For ROPD, cognitive state was associated with subjective experiential and doctrinal frequency of classification. With more intact intellect, there was a greater likelihood of classifying phrases subjectively as mixed, and the converse for experiential. Furthermore, religiosity negatively predicted subjective doctrinal frequency in LOPD, with the converse in ROPD. In fcMRI in PD, we found resting state functional intrinsic connectivity of reward networks associated with classification of statements using seeds in bilateral nucleus accumbens in PD. For experiential regressors, there was a negative correlation in bilateral frontal lobes paired with a positive correlation in left occipital visual areas (BAs 17, 18). For doctrinal regressors, there was a positive correlation in right BA 20.
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Affiliation(s)
- Edward J Modestino
- Department of Neurology, Boston University School of Medicine Boston, MA, USA
| | - Partrick O'Toole
- Department of Neurology, Boston University School of Medicine Boston, MA, USA
| | - AnnaMarie Reinhofer
- Department of Neurology, Boston University School of Medicine Boston, MA, USA
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94
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Fengler A, Meyer L, Friederici AD. How the brain attunes to sentence processing: Relating behavior, structure, and function. Neuroimage 2016; 129:268-278. [PMID: 26777477 PMCID: PMC4819595 DOI: 10.1016/j.neuroimage.2016.01.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 11/24/2015] [Accepted: 01/06/2016] [Indexed: 11/25/2022] Open
Abstract
Unlike other aspects of language comprehension, the ability to process complex sentences develops rather late in life. Brain maturation as well as verbal working memory (vWM) expansion have been discussed as possible reasons. To determine the factors contributing to this functional development, we assessed three aspects in different age-groups (5–6 years, 7–8 years, and adults): first, functional brain activity during the processing of increasingly complex sentences; second, brain structure in language-related ROIs; and third, the behavioral comprehension performance on complex sentences and the performance on an independent vWM test. At the whole-brain level, brain functional data revealed a qualitatively similar neural network in children and adults including the left pars opercularis (PO), the left inferior parietal lobe together with the posterior superior temporal gyrus (IPL/pSTG), the supplementary motor area, and the cerebellum. While functional activation of the language-related ROIs PO and IPL/pSTG predicted sentence comprehension performance for all age-groups, only adults showed a functional selectivity in these brain regions with increased activation for more complex sentences. The attunement of both the PO and IPL/pSTG toward a functional selectivity for complex sentences is predicted by region-specific gray matter reduction while that of the IPL/pSTG is additionally predicted by vWM span. Thus, both structural brain maturation and vWM expansion provide the basis for the emergence of functional selectivity in language-related brain regions leading to more efficient sentence processing during development.
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Affiliation(s)
- Anja Fengler
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Stephanstraße 1A, 04103 Leipzig, Germany.
| | - Lars Meyer
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Stephanstraße 1A, 04103 Leipzig, Germany
| | - Angela D Friederici
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Stephanstraße 1A, 04103 Leipzig, Germany
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95
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Papagiannopoulou EA, Lagopoulos J. Resting State EEG Hemispheric Power Asymmetry in Children with Dyslexia. Front Pediatr 2016; 4:11. [PMID: 26942169 PMCID: PMC4764697 DOI: 10.3389/fped.2016.00011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Accepted: 02/10/2016] [Indexed: 11/13/2022] Open
Abstract
Dyslexia is a neurodevelopmental disorder estimated to affect between 4 and 7% of the population. It is often referred to as a learning disability and is characterized by deficits in the linguistic system. To better understand the neural underpinnings of dyslexia, we examined the electroencephalography (EEG) power spectra between pre-adolescents with dyslexia and neurotypical control children during eyes closed state. We reported the differences in spontaneous oscillatory activity of each major EEG band (delta, theta, alpha, and beta) adopting a global as well as in a region-by-region and hemispheric approach to elucidate whether there are changes in asymmetry in children with dyslexia compared to controls. We also examined the relationship between EEG power spectra and clinical variables. The findings of our study confirm the presence of an atypical linguistic network, evident in children with dyslexia. This abnormal network hallmarked by a dominance of theta activity suggests that these abnormalities are present prior to these children learning to read, thus implicating delayed maturation and abnormal hypoarousal mechanisms.
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Affiliation(s)
| | - Jim Lagopoulos
- Brain and Mind Research Institute, University of Sydney, Camperdown, NSW, Australia; Sunshine Coast Mind and Neuroscience - Thompson Institute, University of the Sunshine Coast, Birtinya, QLD, Australia
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96
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Wu CY, Vissiennon K, Friederici AD, Brauer J. Preschoolers' brains rely on semantic cues prior to the mastery of syntax during sentence comprehension. Neuroimage 2015; 126:256-66. [PMID: 26497266 PMCID: PMC4739511 DOI: 10.1016/j.neuroimage.2015.10.036] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 09/10/2015] [Accepted: 10/15/2015] [Indexed: 12/03/2022] Open
Abstract
Sentence comprehension requires the integration of both syntactic and semantic information, the acquisition of which seems to have different trajectories in the developing brain. Using functional magnetic resonance imaging, we examined the neural correlates underlying syntactic and semantic processing during auditory sentence comprehension as well as its development in preschool children by manipulating case marking and animacy hierarchy cues, respectively. A functional segregation was observed within Broca's area in the left inferior frontal gyrus for adults, where the pars opercularis was involved in syntactic processing and the pars triangularis in semantic processing. By contrast, five-year-old children sensitive to animacy hierarchy cues showed diffuse activation for semantic processing in the left inferior frontal and posterior temporal cortices. While no main effect of case marking was found in the left fronto-temporal language network, children with better syntactic skills showed greater neural responses for syntactically complex sentences, most prominently in the posterior superior temporal cortex. The current study provides both behavioral and neural evidence that five-year-old children compared to adults rely more on semantic information than on syntactic cues during sentence comprehension, but with the development of syntactic abilities, their brain activation in the left fronto-temporal network increases for syntactic processing. Adults showed a functional segregation in Broca's area for syntax and semantics. Brodmann Area (BA) 44 was involved in syntactic and BA 45 in semantic processing. Preschoolers relied more on semantic animacy than on syntactic case marking cues. Children showed adult-like left fronto-temporal activation for semantic processing. The left fronto-temporal activation for syntax correlated with syntactic abilities.
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Affiliation(s)
- Chiao-Yi Wu
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Stephanstrasse 1A, 04103 Leipzig, Germany.
| | - Kodjo Vissiennon
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Stephanstrasse 1A, 04103 Leipzig, Germany
| | - Angela D Friederici
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Stephanstrasse 1A, 04103 Leipzig, Germany
| | - Jens Brauer
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Stephanstrasse 1A, 04103 Leipzig, Germany
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97
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Dehaene S, Meyniel F, Wacongne C, Wang L, Pallier C. The Neural Representation of Sequences: From Transition Probabilities to Algebraic Patterns and Linguistic Trees. Neuron 2015; 88:2-19. [DOI: 10.1016/j.neuron.2015.09.019] [Citation(s) in RCA: 243] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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