1
|
Gonzalez JE, Nieto N, Brusco P, Gravano A, Kamienkowski JE. Speech-induced suppression during natural dialogues. Commun Biol 2024; 7:291. [PMID: 38459110 PMCID: PMC10923813 DOI: 10.1038/s42003-024-05945-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 02/21/2024] [Indexed: 03/10/2024] Open
Abstract
When engaged in a conversation, one receives auditory information from the other's speech but also from their own speech. However, this information is processed differently by an effect called Speech-Induced Suppression. Here, we studied brain representation of acoustic properties of speech in natural unscripted dialogues, using electroencephalography (EEG) and high-quality speech recordings from both participants. Using encoding techniques, we were able to reproduce a broad range of previous findings on listening to another's speech, and achieving even better performances when predicting EEG signal in this complex scenario. Furthermore, we found no response when listening to oneself, using different acoustic features (spectrogram, envelope, etc.) and frequency bands, evidencing a strong effect of SIS. The present work shows that this mechanism is present, and even stronger, during natural dialogues. Moreover, the methodology presented here opens the possibility of a deeper understanding of the related mechanisms in a wider range of contexts.
Collapse
Affiliation(s)
- Joaquin E Gonzalez
- Laboratorio de Inteligencia Artificial Aplicada, Instituto de Ciencias de la Computación (Universidad de Buenos Aires - Consejo Nacional de Investigaciones Cientificas y Tecnicas), Buenos Aires, Argentina.
| | - Nicolás Nieto
- Instituto de Investigación en Señales, Sistemas e Inteligencia Computacional, sinc(i) (Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Cientificas y Tecnicas), Santa Fe, Argentina
- Instituto de Matemática Aplicada del Litoral, IMAL-UNL/CONICET, Santa Fe, Argentina
| | - Pablo Brusco
- Departamento de Computación, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Agustín Gravano
- Laboratorio de Inteligencia Artificial, Universidad Torcuato Di Tella, Buenos Aires, Argentina
- Escuela de Negocios, Universidad Torcuato Di Tella, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Juan E Kamienkowski
- Laboratorio de Inteligencia Artificial Aplicada, Instituto de Ciencias de la Computación (Universidad de Buenos Aires - Consejo Nacional de Investigaciones Cientificas y Tecnicas), Buenos Aires, Argentina
- Departamento de Computación, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
- Maestria de Explotación de Datos y Descubrimiento del Conocimiento, Facultad de Ciencias Exactas y Naturales - Facultad de Ingenieria, Universidad de Buenos Aires, Buenos Aires, Argentina
| |
Collapse
|
2
|
Ruksenaite J, Volkmer A, Jiang J, Johnson JC, Marshall CR, Warren JD, Hardy CJ. Primary Progressive Aphasia: Toward a Pathophysiological Synthesis. Curr Neurol Neurosci Rep 2021; 21:7. [PMID: 33543347 PMCID: PMC7861583 DOI: 10.1007/s11910-021-01097-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2021] [Indexed: 12/14/2022]
Abstract
PURPOSE OF REVIEW The term primary progressive aphasia (PPA) refers to a diverse group of dementias that present with prominent and early problems with speech and language. They present considerable challenges to clinicians and researchers. RECENT FINDINGS Here, we review critical issues around diagnosis of the three major PPA variants (semantic variant PPA, nonfluent/agrammatic variant PPA, logopenic variant PPA), as well as considering 'fragmentary' syndromes. We next consider issues around assessing disease stage, before discussing physiological phenotyping of proteinopathies across the PPA spectrum. We also review evidence for core central auditory impairments in PPA, outline critical challenges associated with treatment, discuss pathophysiological features of each major PPA variant, and conclude with thoughts on key challenges that remain to be addressed. New findings elucidating the pathophysiology of PPA represent a major step forward in our understanding of these diseases, with implications for diagnosis, care, management, and therapies.
Collapse
Affiliation(s)
- Justina Ruksenaite
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, University College London, 8 - 11 Queen Square, London, WC1N 3BG, UK
| | - Anna Volkmer
- Division of Psychology and Language Sciences, University College London, London, UK
| | - Jessica Jiang
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, University College London, 8 - 11 Queen Square, London, WC1N 3BG, UK
| | - Jeremy Cs Johnson
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, University College London, 8 - 11 Queen Square, London, WC1N 3BG, UK
| | - Charles R Marshall
- Preventive Neurology Unit, Wolfson Institute of Preventive Medicine, Queen Mary University of London, London, UK
| | - Jason D Warren
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, University College London, 8 - 11 Queen Square, London, WC1N 3BG, UK
| | - Chris Jd Hardy
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, University College London, 8 - 11 Queen Square, London, WC1N 3BG, UK.
| |
Collapse
|
3
|
Ardila A, Akhutina TV, Mikadze YV. A.R. Luria's contribution to studies of the brain organization of language. NEUROLOGY, NEUROPSYCHIATRY, PSYCHOSOMATICS 2020. [DOI: 10.14412/2074-2711-2020-1-4-12] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- A. Ardila
- Albizu University, Miami, Florida;
I.M. Sechenov First Moscow State Medical University (Sechenov University), Ministry of Health of Russia
| | - T. V. Akhutina
- Faculty of Psychology, M.V. Lomonosov Moscow State University
| | - Yu. V. Mikadze
- Faculty of Psychology, M.V. Lomonosov Moscow State University;
N.I. Pirogov Russian National Research Medical University, Ministry of Health of Russia;
Federal Center for Cerebrovascular Pathology and Stroke, Ministry of Health of Russia
| |
Collapse
|
4
|
Hu Z, Yang H, Yang Y, Nishida S, Madden-Lombardi C, Ventre-Dominey J, Dominey PF, Ogawa K. Common Neural System for Sentence and Picture Comprehension Across Languages: A Chinese-Japanese Bilingual Study. Front Hum Neurosci 2019; 13:380. [PMID: 31708762 PMCID: PMC6823717 DOI: 10.3389/fnhum.2019.00380] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 10/11/2019] [Indexed: 11/13/2022] Open
Abstract
While common semantic representations for individual words across languages have been identified, a common meaning system at sentence-level has not been determined. In this study, fMRI was used to investigate whether an across-language sentence comprehension system exists. Chinese–Japanese bilingual participants (n = 32) were asked to determine whether two consecutive stimuli were related (coherent) or not (incoherent) to the same event. Stimuli were displayed with three different modalities (Chinese written sentences, Japanese written sentences, and pictures). The behavioral results showed no significant difference in accuracy and response times among the three modalities. Multi-voxel pattern analysis (MVPA) of fMRI data was used to classify the semantic relationship (coherent or incoherent) across the stimulus modalities. The classifier was first trained to determine coherency within Chinese sentences and then tested with Japanese sentences, and vice versa. A whole-brain searchlight analysis revealed significant above-chance classification accuracy across Chinese and Japanese sentences in the supramarginal gyrus (BA 40), extending into the angular gyrus (BA 39) as well as the opercular (BA 44) and triangular (BA 45) parts of the inferior frontal gyrus in the left hemisphere (cluster-level FWE corrected p < 0.05). Significant above-chance classification accuracy was also found across Japanese sentences and pictures in the supramarginal (BA 40) and angular gyrus (BA 39). These results indicate that a common meaning system for sentence processing across languages and modalities exists, and it involves the left inferior parietal gyrus.
Collapse
Affiliation(s)
- Zhengfei Hu
- Department of Psychology, Hokkaido University, Sapporo, Japan
| | - Huixiang Yang
- Department of Psychology, Hokkaido University, Sapporo, Japan
| | - Yuxiang Yang
- Department of Psychology, Hokkaido University, Sapporo, Japan
| | - Shuhei Nishida
- Department of Psychology, Hokkaido University, Sapporo, Japan
| | | | | | - Peter Ford Dominey
- INSERM - U1093 Cognition, Action, and Sensorimotor Plasticity, Dijon, France
| | - Kenji Ogawa
- Department of Psychology, Hokkaido University, Sapporo, Japan
| |
Collapse
|
5
|
Egorova N, Shtyrov Y, Pulvermüller F. Brain basis of communicative actions in language. Neuroimage 2015; 125:857-867. [PMID: 26505303 PMCID: PMC4692511 DOI: 10.1016/j.neuroimage.2015.10.055] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 09/17/2015] [Accepted: 10/20/2015] [Indexed: 11/28/2022] Open
Abstract
Although language is a key tool for communication in social interaction, most studies in the neuroscience of language have focused on language structures such as words and sentences. Here, the neural correlates of speech acts, that is, the actions performed by using language, were investigated with functional magnetic resonance imaging (fMRI). Participants were shown videos, in which the same critical utterances were used in different communicative contexts, to Name objects, or to Request them from communication partners. Understanding of critical utterances as Requests was accompanied by activation in bilateral premotor, left inferior frontal and temporo-parietal cortical areas known to support action-related and social interactive knowledge. Naming, however, activated the left angular gyrus implicated in linking information about word forms and related reference objects mentioned in critical utterances. These findings show that understanding of utterances as different communicative actions is reflected in distinct brain activation patterns, and thus suggest different neural substrates for different speech act types.
Collapse
Affiliation(s)
- Natalia Egorova
- Medical Research Council, Cognition and Brain Sciences Unit, Cambridge CB2 7EF, UK; Department of Psychiatric Neuroimaging, Massachusetts General Hospital / Harvard Medical School, 02129, Charlestown, MA, USA.
| | - Yury Shtyrov
- Centre of Functionally Integrative Neuroscience (CFIN), Aarhus University, Denmark; Centre for Cognition and Decision Making, Higher School of Economics, Moscow, 109316, Russia
| | - Friedemann Pulvermüller
- Brain Language Laboratory, Freie Universität Berlin, 14195 Berlin, Germany; Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, 10099 Berlin, Germany.
| |
Collapse
|
6
|
Politzer-Ahles S, Gwilliams L. Involvement of prefrontal cortex in scalar implicatures: evidence from magnetoencephalography. LANGUAGE, COGNITION AND NEUROSCIENCE 2015; 30:853-866. [PMID: 26247054 PMCID: PMC4487593 DOI: 10.1080/23273798.2015.1027235] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 02/25/2015] [Indexed: 06/04/2023]
Abstract
The present study investigated the neural correlates of the realisation of scalar inferences, i.e., the interpretation of some as meaning some but not all. We used magnetoencephalography, which has high temporal resolution, to measure neural activity while participants heard stories that included the scalar inference trigger some in contexts that either provide strong cues for a scalar inference or provide weaker cues. The middle portion of the lateral prefrontal cortex (Brodmann area 46) showed an increased response to some in contexts with fewer cues to the inference, suggesting that this condition elicited greater effort. While the results are not predicted by traditional all-or-nothing accounts of scalar inferencing that assume the process is always automatic or always effortful, they are consistent with more recent gradient accounts which predict that the speed and effort of scalar inferences is strongly modulated by numerous contextual factors.
Collapse
Affiliation(s)
| | - Laura Gwilliams
- NYUAD Institute, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| |
Collapse
|
7
|
Mesulam MM, Thompson CK, Weintraub S, Rogalski EJ. The Wernicke conundrum and the anatomy of language comprehension in primary progressive aphasia. Brain 2015; 138:2423-37. [PMID: 26112340 DOI: 10.1093/brain/awv154] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 04/14/2015] [Indexed: 11/14/2022] Open
Abstract
Wernicke's aphasia is characterized by severe word and sentence comprehension impairments. The location of the underlying lesion site, known as Wernicke's area, remains controversial. Questions related to this controversy were addressed in 72 patients with primary progressive aphasia who collectively displayed a wide spectrum of cortical atrophy sites and language impairment patterns. Clinico-anatomical correlations were explored at the individual and group levels. These analyses showed that neuronal loss in temporoparietal areas, traditionally included within Wernicke's area, leave single word comprehension intact and cause inconsistent impairments of sentence comprehension. The most severe sentence comprehension impairments were associated with a heterogeneous set of cortical atrophy sites variably encompassing temporoparietal components of Wernicke's area, Broca's area, and dorsal premotor cortex. Severe comprehension impairments for single words, on the other hand, were invariably associated with peak atrophy sites in the left temporal pole and adjacent anterior temporal cortex, a pattern of atrophy that left sentence comprehension intact. These results show that the neural substrates of word and sentence comprehension are dissociable and that a circumscribed cortical area equally critical for word and sentence comprehension is unlikely to exist anywhere in the cerebral cortex. Reports of combined word and sentence comprehension impairments in Wernicke's aphasia come almost exclusively from patients with cerebrovascular accidents where brain damage extends into subcortical white matter. The syndrome of Wernicke's aphasia is thus likely to reflect damage not only to the cerebral cortex but also to underlying axonal pathways, leading to strategic cortico-cortical disconnections within the language network. The results of this investigation further reinforce the conclusion that the left anterior temporal lobe, a region ignored by classic aphasiology, needs to be inserted into the language network with a critical role in the multisynaptic hierarchy underlying word comprehension and object naming.
Collapse
Affiliation(s)
- M-Marsel Mesulam
- 1 Cognitive Neurology and Alzheimer's Disease Centre, Northwestern University, Chicago, Illinois 60611, USA 2 Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA 3 Department of Psychology, Northwestern University, Chicago, Illinois 60611, USA
| | - Cynthia K Thompson
- 1 Cognitive Neurology and Alzheimer's Disease Centre, Northwestern University, Chicago, Illinois 60611, USA 4 Department of Communication Sciences and Disorders, Northwestern University, Chicago, Illinois 60611, USA
| | - Sandra Weintraub
- 1 Cognitive Neurology and Alzheimer's Disease Centre, Northwestern University, Chicago, Illinois 60611, USA 5 Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | - Emily J Rogalski
- 1 Cognitive Neurology and Alzheimer's Disease Centre, Northwestern University, Chicago, Illinois 60611, USA
| |
Collapse
|
8
|
Schönberger E, Heim S, Meffert E, Pieperhoff P, da Costa Avelar P, Huber W, Binkofski F, Grande M. The neural correlates of agrammatism: Evidence from aphasic and healthy speakers performing an overt picture description task. Front Psychol 2014; 5:246. [PMID: 24711802 PMCID: PMC3968764 DOI: 10.3389/fpsyg.2014.00246] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 03/05/2014] [Indexed: 11/22/2022] Open
Abstract
Functional brain imaging studies have improved our knowledge of the neural localization of language functions and the functional reorganization after a lesion. However, the neural correlates of agrammatic symptoms in aphasia remain largely unknown. The present fMRI study examined the neural correlates of morpho-syntactic encoding and agrammatic errors in continuous language production by combining three approaches. First, the neural mechanisms underlying natural morpho-syntactic processing in a picture description task were analyzed in 15 healthy speakers. Second, agrammatic-like speech behavior was induced in the same group of healthy speakers to study the underlying functional processes by limiting the utterance length. In a third approach, five agrammatic participants performed the picture description task to gain insights in the neural correlates of agrammatism and the functional reorganization of language processing after stroke. In all approaches, utterances were analyzed for syntactic completeness, complexity, and morphology. Event-related data analysis was conducted by defining every clause-like unit (CLU) as an event with its onset-time and duration. Agrammatic and correct CLUs were contrasted. Due to the small sample size as well as heterogeneous lesion sizes and sites with lesion foci in the insula lobe, inferior frontal, superior temporal and inferior parietal areas the activation patterns in the agrammatic speakers were analyzed on a single subject level. In the group of healthy speakers, posterior temporal and inferior parietal areas were associated with greater morpho-syntactic demands in complete and complex CLUs. The intentional manipulation of morpho-syntactic structures and the omission of function words were associated with additional inferior frontal activation. Overall, the results revealed that the investigation of the neural correlates of agrammatic language production can be reasonably conducted with an overt language production paradigm.
Collapse
Affiliation(s)
- Eva Schönberger
- Section Neurological Cognition Research, Department of Neurology, Uniklinik RWTH Aachen Aachen, Germany
| | - Stefan Heim
- Section Neurological Cognition Research, Department of Neurology, Uniklinik RWTH Aachen Aachen, Germany ; Department of Psychiatry, Psychotherapy and Psychosomatics, Uniklinik RWTH Aachen Aachen, Germany ; Research Centre Juelich, Institute of Neuroscience and Medicine (INM-1) Juelich, Germany
| | - Elisabeth Meffert
- Section Neurological Cognition Research, Department of Neurology, Uniklinik RWTH Aachen Aachen, Germany ; Department of Psychiatry, Psychotherapy and Psychosomatics, Uniklinik RWTH Aachen Aachen, Germany
| | - Peter Pieperhoff
- Research Centre Juelich, Institute of Neuroscience and Medicine (INM-1) Juelich, Germany
| | - Patricia da Costa Avelar
- Section Neurological Cognition Research, Department of Neurology, Uniklinik RWTH Aachen Aachen, Germany
| | - Walter Huber
- Section Neurological Cognition Research, Department of Neurology, Uniklinik RWTH Aachen Aachen, Germany
| | - Ferdinand Binkofski
- Section Neurological Cognition Research, Department of Neurology, Uniklinik RWTH Aachen Aachen, Germany
| | - Marion Grande
- Section Neurological Cognition Research, Department of Neurology, Uniklinik RWTH Aachen Aachen, Germany
| |
Collapse
|
9
|
Guediche S, Blumstein SE, Fiez JA, Holt LL. Speech perception under adverse conditions: insights from behavioral, computational, and neuroscience research. Front Syst Neurosci 2014; 7:126. [PMID: 24427119 PMCID: PMC3879477 DOI: 10.3389/fnsys.2013.00126] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 12/16/2013] [Indexed: 01/06/2023] Open
Abstract
Adult speech perception reflects the long-term regularities of the native language, but it is also flexible such that it accommodates and adapts to adverse listening conditions and short-term deviations from native-language norms. The purpose of this article is to examine how the broader neuroscience literature can inform and advance research efforts in understanding the neural basis of flexibility and adaptive plasticity in speech perception. Specifically, we highlight the potential role of learning algorithms that rely on prediction error signals and discuss specific neural structures that are likely to contribute to such learning. To this end, we review behavioral studies, computational accounts, and neuroimaging findings related to adaptive plasticity in speech perception. Already, a few studies have alluded to a potential role of these mechanisms in adaptive plasticity in speech perception. Furthermore, we consider research topics in neuroscience that offer insight into how perception can be adaptively tuned to short-term deviations while balancing the need to maintain stability in the perception of learned long-term regularities. Consideration of the application and limitations of these algorithms in characterizing flexible speech perception under adverse conditions promises to inform theoretical models of speech.
Collapse
Affiliation(s)
- Sara Guediche
- Department of Cognitive, Linguistic, and Psychological Sciences, Brown UniversityProvidence, RI, USA
| | - Sheila E. Blumstein
- Department of Cognitive, Linguistic, and Psychological Sciences, Brown UniversityProvidence, RI, USA
- Department of Cognitive, Linguistic, and Psychological Sciences, Brain Institute, Brown UniversityProvidence, RI, USA
| | - Julie A. Fiez
- Department of Neuroscience, Center for Neuroscience at the University of Pittsburgh, University of PittsburghPittsburgh, PA, USA
- Department of Psychology, University of PittsburghPittsburgh, PA, USA
- Department of Psychology at Carnegie Mellon University and Department of Neuroscience at the University of Pittsburgh, Center for the Neural Basis of CognitionPittsburgh, PA, USA
| | - Lori L. Holt
- Department of Neuroscience, Center for Neuroscience at the University of Pittsburgh, University of PittsburghPittsburgh, PA, USA
- Department of Psychology at Carnegie Mellon University and Department of Neuroscience at the University of Pittsburgh, Center for the Neural Basis of CognitionPittsburgh, PA, USA
- Department of Psychology, Carnegie Mellon UniversityPittsburgh, PA, USA
| |
Collapse
|
10
|
Zhu F, Zhang Q, Qiu J. Relating inter-individual differences in verbal creative thinking to cerebral structures: an optimal voxel-based morphometry study. PLoS One 2013; 8:e79272. [PMID: 24223921 PMCID: PMC3818430 DOI: 10.1371/journal.pone.0079272] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Accepted: 09/22/2013] [Indexed: 11/19/2022] Open
Abstract
Creativity can be defined the capacity of an individual to produce something original and useful. An important measurable component of creativity is divergent thinking. Despite existing studies on creativity-related cerebral structural basis, no study has used a large sample to investigate the relationship between individual verbal creativity and regional gray matter volumes (GMVs) and white matter volumes (WMVs). In the present work, optimal voxel-based morphometry (VBM) was employed to identify the structure that correlates verbal creativity (measured by the verbal form of Torrance Tests of Creative Thinking) across the brain in young healthy subjects. Verbal creativity was found to be significantly positively correlated with regional GMV in the left inferior frontal gyrus (IFG), which is believed to be responsible for language production and comprehension, new semantic representation, and memory retrieval, and in the right IFG, which may involve inhibitory control and attention switching. A relationship between verbal creativity and regional WMV in the left and right IFG was also observed. Overall, a highly verbal creative individual with superior verbal skills may demonstrate a greater computational efficiency in the brain areas involved in high-level cognitive processes including language production, semantic representation and cognitive control.
Collapse
Affiliation(s)
- Feifei Zhu
- Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Chongqing, China
- School of Psychology, Southwest University, Chongqing, China
| | - Qinglin Zhang
- Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Chongqing, China
- School of Psychology, Southwest University, Chongqing, China
| | - Jiang Qiu
- Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Chongqing, China
- School of Psychology, Southwest University, Chongqing, China
| |
Collapse
|
11
|
Primary progressive dynamic aphasia and Parkinsonism: Generation, selection and sequencing deficits. Neuropsychologia 2013; 51:2534-47. [DOI: 10.1016/j.neuropsychologia.2013.09.038] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 08/23/2013] [Accepted: 09/30/2013] [Indexed: 11/22/2022]
|
12
|
Kellmeyer P, Ziegler W, Peschke C, Juliane E, Schnell S, Baumgaertner A, Weiller C, Saur D. Fronto-parietal dorsal and ventral pathways in the context of different linguistic manipulations. BRAIN AND LANGUAGE 2013; 127:241-250. [PMID: 24183468 DOI: 10.1016/j.bandl.2013.09.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Revised: 08/20/2013] [Accepted: 09/30/2013] [Indexed: 06/02/2023]
Abstract
This study investigates structural connectivity between left fronto-parietal brain regions that were identified in a previous fMRI study which used different linguistic manipulation tasks. Diffusion-weighted images were acquired from 20 volunteers. Structural connectivity between brain regions from the fMRI study was computed using probabilistic fiber tracking. For suprasegmental manipulation, left inferior parietal lobule (IPL) and left inferior frontal gyrus (IFG), pars opercularis, were connected by a dorsal pathway via the arcuate fascicle and superior longitudinal fascicle III. For segmental manipulation, left IPL and IFG, pars triangularis, were connected by a ventral pathway via the middle longitudinal fascicle and the extreme capsule. We conclude that the dorsal pathway provides a route for mapping from phonological memory in IPL to the inferior frontal articulatory network while the ventral pathway could facilitate the modulation of phonological units based on lexical-semantic aspects, mediate the complexity of auditory objects and the unification of actor-event schemata.
Collapse
Affiliation(s)
- Philipp Kellmeyer
- Department of Neurology, University Medical Center Freiburg, Breisacher Str. 64, D-70196 Freiburg, Germany; Freiburg Brain Imaging, University Medical Center Freiburg, Breisacher Str. 64, D-79106 Freiburg, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
13
|
Language processing in the occipital cortex of congenitally blind adults. Proc Natl Acad Sci U S A 2011; 108:4429-34. [PMID: 21368161 DOI: 10.1073/pnas.1014818108] [Citation(s) in RCA: 255] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Humans are thought to have evolved brain regions in the left frontal and temporal cortex that are uniquely capable of language processing. However, congenitally blind individuals also activate the visual cortex in some verbal tasks. We provide evidence that this visual cortex activity in fact reflects language processing. We find that in congenitally blind individuals, the left visual cortex behaves similarly to classic language regions: (i) BOLD signal is higher during sentence comprehension than during linguistically degraded control conditions that are more difficult; (ii) BOLD signal is modulated by phonological information, lexical semantic information, and sentence-level combinatorial structure; and (iii) functional connectivity with language regions in the left prefrontal cortex and thalamus are increased relative to sighted individuals. We conclude that brain regions that are thought to have evolved for vision can take on language processing as a result of early experience. Innate microcircuit properties are not necessary for a brain region to become involved in language processing.
Collapse
|
14
|
Ye Z, Mestres-Missé A, Rodriguez-Fornells A, Münte TF. Two distinct neural networks support the mapping of meaning to a novel word. Hum Brain Mapp 2010; 32:1081-90. [PMID: 20681014 DOI: 10.1002/hbm.21093] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2010] [Revised: 04/08/2010] [Accepted: 04/13/2010] [Indexed: 11/11/2022] Open
Abstract
Children can learn the meaning of a new word from context during normal reading or listening, without any explicit instruction. It is unclear how such meaning acquisition is supported and achieved in human brain. In this functional magnetic resonance imaging (fMRI) study we investigated neural networks supporting word learning with a functional connectivity approach. Participants were exposed to a new word presented in two successive sentences and needed to derive the meaning of the new word. We observed two neural networks involved in mapping the meaning to the new word. One network connected the left inferior frontal gyrus (LIFG) with the middle frontal gyrus (MFG), medial superior frontal gyrus, caudate nucleus, thalamus, and inferior parietal lobule. The other network connected the left middle temporal gyrus (LMTG) with the MFG, anterior and posterior cingulate cortex. The LIFG network showed stronger interregional interactions for new than real words, whereas the LMTG network showed similar connectivity patterns for new and real words. We proposed that these two networks support different functions during word learning. The LIFG network appears to select the most appropriate meaning from competing candidates and to map the selected meaning onto the new word. The LMTG network may be recruited to integrate the word into sentential context, regardless of whether the word is real or new. The LIFG and the LMTG networks share a common node, the MFG, suggesting that these two networks communicate in working memory.
Collapse
Affiliation(s)
- Zheng Ye
- Department of Psychology, Peking University, Beijing, China
| | | | | | | |
Collapse
|
15
|
Robinson G, Shallice T, Bozzali M, Cipolotti L. Conceptual proposition selection and the LIFG: neuropsychological evidence from a focal frontal group. Neuropsychologia 2010; 48:1652-63. [PMID: 20153763 DOI: 10.1016/j.neuropsychologia.2010.02.010] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2009] [Revised: 12/22/2009] [Accepted: 02/05/2010] [Indexed: 10/19/2022]
Abstract
Much debate surrounds the role of the left inferior frontal gyrus (LIFG). Evidence from lesion and neuroimaging studies suggests the LIFG supports a selection mechanism used in single word generation. Single case studies of dynamic aphasic patients with LIFG damage concur with this and extend the finding to selection of sentences at the conceptual preparation stage of language generation. A neuropsychological group with unselected focal frontal and non-frontal lesions is assessed on a sentence generation task that varied the number of possible conceptual propositions available for selection. Frontal patients with LIFG damage when compared to Frontal patients without LIFG damage and Posterior patients were selectively impaired on sentence generation tests only when stimuli activated multiple conceptual propositions that compete with each other for selection. We found that this selective impairment is critical for reduced speech rate, the core deficit of dynamic aphasia, and we would argue it is causative for one form of dynamic aphasia associated with LIFG lesions. These results provide evidence that the LIFG is crucial for selecting among multiple competing conceptual propositions for language generation.
Collapse
Affiliation(s)
- Gail Robinson
- Department of Neuropsychology, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK.
| | | | | | | |
Collapse
|
16
|
Newman SD, Lee D, Ratliff KL. Off-line sentence processing: what is involved in answering a comprehension probe? Hum Brain Mapp 2009; 30:2499-511. [PMID: 19184993 DOI: 10.1002/hbm.20684] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The aim of this study was to better characterize the influence of the comprehension probe on syntax-related activation patterns observed in fMRI studies of sentence comprehension. In this study, sentence comprehension was assessed by presenting a true/false statement after each sentence. To disassociate the sentence reading from the comprehension probe activation, a 6-s delay was placed between these processing phases. Two factors were manipulated, one affected the sentence and the other affected the probe. The sentences were manipulated by varying their syntactic complexity; conjoined-active and object-relative sentences were examined. The comprehension probes asked whether one of the first two mentioned nouns in the preceding sentence performed the action of one of the two verbs. The probes were manipulated by varying the distance (number of intervening words) between the noun and verb within the sentence; there were three probe types: short distance, long distance, and false statements. The results, which focused on the processing taking place during the probe, showed that the distance manipulation resulted in significant differences in both behavioral and brain activation measures. This was particularly true of BA 44, which revealed an interaction between complexity and distance such that the complexity effect was all but eliminated for the long-distance condition. Additionally, we replicated our previous finding of syntactic complexity effects during the probe phase. Finally, post hoc analysis revealed that participants used two distinct strategies during sentence reading; significant effects of strategy use on both behavioral and brain activation data were observed.
Collapse
Affiliation(s)
- Sharlene D Newman
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN 47405, USA.
| | | | | |
Collapse
|
17
|
Abstract
We present the case of a right-handed patient who received surgical treatment for a left frontal WHO grade II glioma invading the left inferior and middle frontal gyri, the head of the caudate nucleus, the anterior limb of the internal capsule and the anterior insula, in direct contact also with the anterior-superior part of the lentiform nucleus. The tumor resection was guided by direct electrical stimulation on brain areas, while the patient was awake. Adding a narrative production task to the neuropsychological assessment, we compared pre-, peri- and post-surgical language skills in order to analyze the effects of the tumor infiltration and the consequences of the left IFG resection, an area known to be involved in various language and cognitive processes. We showed that the tumor infiltration and its resection did not lead to the severe impairments predicted by the localization models assigning a significant role in language processing to the left frontal lobe, notably Broca's area. We showed that slow tumor evolution - the patient had been symptom-free for a long time - enabled compensatory mechanisms to process most language functions endangered by the tumor infiltration. However, a subtle fragility was observed in two language devices, i.e., reported speech and relative clauses, related to minor working memory deficits. This case study of a patient speaking without Broca's area illustrates the efficiency of brain plasticity, and shows the necessity to broaden pre-, peri-, post-surgery language and cognitive assessments.
Collapse
Affiliation(s)
- Monique Plaza
- Laboratoire de Psychologie et Neurosciences Cognitives (UMR CNRS 8189), Université Paris Descartes, Service de Neurochirurgie, CHU Gui de Chauliac, Montpellier, France.
| | | | | | | |
Collapse
|
18
|
|
19
|
Wang S, Zhu Z, Zhang JX, Wang Z, Xiao Z, Xiang H, Chen HC. Broca's area plays a role in syntactic processing during Chinese reading comprehension. Neuropsychologia 2008; 46:1371-8. [DOI: 10.1016/j.neuropsychologia.2007.12.020] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2007] [Revised: 11/11/2007] [Accepted: 12/17/2007] [Indexed: 11/27/2022]
|
20
|
|