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Abi Chebel NM, Gaunet F, Chavet P, Assaiante C, Bourdin C, Sarlegna FR. Does visual experience influence arm proprioception and its lateralization? Evidence from passive matching performance in congenitally-blind and sighted adults. Neurosci Lett 2023; 810:137335. [PMID: 37321387 DOI: 10.1016/j.neulet.2023.137335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/31/2023] [Accepted: 06/08/2023] [Indexed: 06/17/2023]
Abstract
In humans, body segments' position and movement can be estimated from multiple senses such as vision and proprioception. It has been suggested that vision and proprioception can influence each other and that upper-limb proprioception is asymmetrical, with proprioception of the non-dominant arm being more accurate and/or precise than proprioception of the dominant arm. However, the mechanisms underlying the lateralization of proprioceptive perception are not yet understood. Here we tested the hypothesis that early visual experience influences the lateralization of arm proprioceptive perception by comparing 8 congenitally-blind and 8 matched, sighted right-handed adults. Their proprioceptive perception was assessed at the elbow and wrist joints of both arms using an ipsilateral passive matching task. Results support and extend the view that proprioceptive precision is better at the non-dominant arm for blindfolded sighted individuals. While this finding was rather systematic across sighted individuals, proprioceptive precision of congenitally-blind individuals was not lateralized as systematically, suggesting that lack of visual experience during ontogenesis influences the lateralization of arm proprioception.
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Nemmi F, Cignetti F, Vaugoyeau M, Assaiante C, Chaix Y, Péran P. Developmental dyslexia, developmental coordination disorder and comorbidity discrimination using multimodal structural and functional neuroimaging. Cortex 2023; 160:43-54. [PMID: 36680923 DOI: 10.1016/j.cortex.2022.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 06/15/2022] [Accepted: 10/31/2022] [Indexed: 12/23/2022]
Abstract
Developmental dyslexia (DD) and developmental coordination disorder (DCD) are two common neurodevelopmental disorders with a high co-occurrence rate. This led several authors to postulate that the two disorders share, at least partially, similar neural underpinning. However, even though several studies examined brain differences between typically developing (TD) children and children with either DD or DCD, no previous study directly compared DD, DCD and children with both disorders (COM) using neuroimaging. We acquired structural and resting-state functional MRI images of 136 children (TD = 42, DD = 45, DCD = 20, COM = 29). Difference between TD children and the other groups was assessed using univariate analysis of structural indexes including grey and white matter volumes and functional indexes quantifying activity (fraction of the amplitude of the low frequency fluctuations), local and global connectivity. Regional differences in structural and functional brain indexes were then used to train machine learning models to discriminate among DD, DCD and COM and to find the most discriminant regions. While no imaging index alone discriminated between the three groups, grouping grey and white matter volumes (structural model) or activity, local and global connectivity (functional model) made possible to discriminate among the DD, DCD and COM groups. The most important discrimination was obtained using the functional model, with regions in the cerebellum and the temporal lobe being the most discriminant for DCD and DD children, respectively. Results further showed that children with both DD and DCD have subtle but identifiable brain differences that can only be captured using several imaging indexes pertaining to both brain structure and function.
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Affiliation(s)
- Federico Nemmi
- Toulouse NeuroImaging Center (ToNIC - UMR1214), Inserm/Université Paul Sabatier, Toulouse, France.
| | - Fabien Cignetti
- Univ. Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, TIMC, Grenoble, France
| | - Marianne Vaugoyeau
- Laboratoire de Neurosciences Cogntives (LNC - UMR7291, CNRS/Aix Marseille Université), Marseille, France
| | - Christine Assaiante
- Laboratoire de Neurosciences Cogntives (LNC - UMR7291, CNRS/Aix Marseille Université), Marseille, France
| | - Yves Chaix
- Toulouse NeuroImaging Center (ToNIC - UMR1214), Inserm/Université Paul Sabatier, Toulouse, France; Pediatric Neurology Unit, Toulouse University Hospital, Toulouse, France
| | - Patrice Péran
- Toulouse NeuroImaging Center (ToNIC - UMR1214), Inserm/Université Paul Sabatier, Toulouse, France
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Blanchet M, Assaiante C. Specific Learning Disorder in Children and Adolescents, a Scoping Review on Motor Impairments and Their Potential Impacts. Children 2022; 9:children9060892. [PMID: 35740829 PMCID: PMC9222033 DOI: 10.3390/children9060892] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/02/2022] [Accepted: 06/09/2022] [Indexed: 11/16/2022]
Abstract
Mastering motor skills is important for children to achieve functional mobility and participate in daily activities. Some studies have identified that students with specific learning disorders (SLD) could have impaired motor skills; however, this postulate and the potential impacts remain unclear. The purpose of the scoping review was to evaluate if SLD children have motor impairments and examine the possible factors that could interfere with this assumption. The sub-objective was to investigate the state of knowledge on the lifestyle behavior and physical fitness of participants with SLD and to discuss possible links with their motor skills. Our scoping review included preregistration numbers and the redaction conformed with the PRISMA guidelines. A total of 34 studies published between 1990 and 2022 were identified. The results of our scoping review reflected that students with SLD have poorer motor skills than their peers. These motor impairments are exacerbated by the complexity of the motor activities and the presence of comorbidities. These results support our sub-objective and highlight the link between motor impairments and the sedentary lifestyle behavior of SLDs. This could lead to deteriorating health and motor skills due to a lack of motor experience, meaning that this is not necessarily a comorbidity. This evidence emphasizes the importance of systematic clinical motor assessments and physical activity adaptations.
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Affiliation(s)
- Mariève Blanchet
- Laboratoire de Recherche en Motricité de L’enfant, Département des Sciences de L’activité Physique, Université du Québec à Montréal, 141 Av. Président-Kennedy, Montréal, QC H2X 1Y4, Canada
- Correspondence:
| | - Christine Assaiante
- LNC, UMR 7291, Fédération 3C, AMU-CNRS, Centre Saint-Charles, Pole 3C, Case C, 3 Place Victor Hugo, 13331 Marseille, France;
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Baudou E, Nemmi F, Biotteau M, Maziero S, Assaiante C, Cignetti F, Vaugoyeau M, Audic F, Peran P, Chaix Y. Are morphological and structural MRI characteristics related to specific cognitive impairments in neurofibromatosis type 1 (NF1) children? Eur J Paediatr Neurol 2020; 28:89-100. [PMID: 32893091 DOI: 10.1016/j.ejpn.2020.07.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 06/19/2020] [Accepted: 07/03/2020] [Indexed: 12/18/2022]
Abstract
INTRODUCTION NF1 children have cognitive disorders, especially in executive functions, visuospatial, and language domains, the pathophysiological mechanisms of which are still poorly understood. MATERIALS AND METHODS A correlation study was performed from neuropsychological assessments and brain MRIs of 38 NF1 patients and 42 controls, all right-handed, aged 8-12 years and matched in age and gender. The most discriminating neuropsychological tests were selected to assess their visuospatial, metaphonological and visuospatial working memory abilities. The MRI analyses focused on the presence and location of Unidentified Bright Objects (UBOs) (1), volume analysis (2) and diffusion analysis (fractional anisotropy and mean diffusivity) (3) of the regions of interest including subcortical structures and posterior fossa, as well as shape analysis of subcortical structures (4). The level of attention, intelligence quotient, age and gender of the patients were taken into account in the statistical analysis. Then, we studied how diffusion and volumes parameters were associated with neuropsychological characteristics in NF1 children. RESULTS NF1 children present different brain imaging characteristics compared to the control such as (1) UBOs in 68%, (2) enlarged total intracranial volume, involving all subcortical structures, especially thalamus, (3) increased MD and decreased FA in thalamus, corpus callosum and hippocampus. These alterations are diffuse, without shape involvement. In NF1 group, brain microstructure is all the more altered that volumes are enlarged. However, we fail to find a link between these brain characteristics and neurocognitive scores. CONCLUSION While NF1 patients have obvious pathological brain characteristics, the neuronal substrates of their cognitive deficits are still not fully understood, perhaps due to complex and multiple pathophysiological mechanisms underlying this disorder, as suggested by the heterogeneity observed in our study. However, our results are compatible with an interpretation of NF1 as a diffuse white matter disease.
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Affiliation(s)
- Eloïse Baudou
- Children's Hospital, Toulouse-Purpan University Hospital, Toulouse, France; ToNIC, Toulouse NeuroImaging Center, University of Toulouse, Inserm, UPS, France.
| | - Federico Nemmi
- ToNIC, Toulouse NeuroImaging Center, University of Toulouse, Inserm, UPS, France
| | - Maëlle Biotteau
- Children's Hospital, Toulouse-Purpan University Hospital, Toulouse, France; ToNIC, Toulouse NeuroImaging Center, University of Toulouse, Inserm, UPS, France
| | - Stéphanie Maziero
- ToNIC, Toulouse NeuroImaging Center, University of Toulouse, Inserm, UPS, France
| | - Christine Assaiante
- CNRS, LNC, Aix Marseille Université, Marseille, France; CNRS, Fédération 3C, Aix Marseille Université, Marseille, France
| | - Fabien Cignetti
- CNRS, LNC, Aix Marseille Université, Marseille, France; CNRS, Fédération 3C, Aix Marseille Université, Marseille, France; CNRS, TIMC-IMAG, Université Grenoble Alpes, Grenoble, France
| | - Marianne Vaugoyeau
- CNRS, LNC, Aix Marseille Université, Marseille, France; CNRS, Fédération 3C, Aix Marseille Université, Marseille, France
| | - Frederique Audic
- Service de Neurologie Pédiatrique, CHU, Timone-Enfants, Marseille, France
| | - Patrice Peran
- ToNIC, Toulouse NeuroImaging Center, University of Toulouse, Inserm, UPS, France
| | - Yves Chaix
- Children's Hospital, Toulouse-Purpan University Hospital, Toulouse, France; ToNIC, Toulouse NeuroImaging Center, University of Toulouse, Inserm, UPS, France
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Cignetti F, Nemmi F, Vaugoyeau M, Girard N, Albaret JM, Chaix Y, Péran P, Assaiante C. Intrinsic Cortico-Subcortical Functional Connectivity in Developmental Dyslexia and Developmental Coordination Disorder. Cereb Cortex Commun 2020; 1:tgaa011. [PMID: 34296090 PMCID: PMC8152893 DOI: 10.1093/texcom/tgaa011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 03/31/2020] [Accepted: 04/02/2020] [Indexed: 12/11/2022] Open
Abstract
Developmental dyslexia (DD) and developmental coordination disorder (DCD) are distinct diagnostic disorders. However, they also frequently co-occur and may share a common etiology. It was proposed conceptually a neural network framework that explains differences and commonalities between DD and DCD through impairments of distinct or intertwined cortico-subcortical connectivity pathways. The present study addressed this issue by exploring intrinsic cortico-striatal and cortico-cerebellar functional connectivity in a large (n = 136) resting-state fMRI cohort study of 8–12-year-old children with typical development and with DD and/or DCD. We delineated a set of cortico-subcortical functional circuits believed to be associated with the brain’s main functions (visual, somatomotor, dorsal attention, ventral attention, limbic, frontoparietal control, and default-mode). Next, we assessed, using general linear and multiple kernel models, whether and which circuits distinguished between the groups. Findings revealed that somatomotor cortico-cerebellar and frontoparietal cortico-striatal circuits are affected in the presence of DCD, including abnormalities in cortico-cerebellar connections targeting motor-related regions and cortico-striatal connections mapping onto posterior parietal cortex. Thus, DCD but not DD may be considered as an impairment of cortico-subcortical functional circuits.
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Affiliation(s)
- Fabien Cignetti
- University of Grenoble Alpes, CNRS, TIMC-IMAG, F-38000 Grenoble, France
| | - Federico Nemmi
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, 31024 Toulouse, France
| | - Marianne Vaugoyeau
- Aix Marseille University, CNRS, LNC, 13331 Marseille, France.,Aix Marseille University, CNRS, Fédération 3C, 13331 Marseille, France
| | - Nadine Girard
- Aix Marseille University, CNRS, CRMBM, 13385 Marseille, France
| | - Jean-Michel Albaret
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, 31024 Toulouse, France
| | - Yves Chaix
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, 31024 Toulouse, France
| | - Patrice Péran
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, 31024 Toulouse, France
| | - Christine Assaiante
- Aix Marseille University, CNRS, LNC, 13331 Marseille, France.,Aix Marseille University, CNRS, Fédération 3C, 13331 Marseille, France
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Assaiante C, Fontan A, Jouve JL, Bollini G, Vaugoyeau M, Cignetti F. Bases neurales de l’intégration proprioceptive chez l’adolescent scoliotique. Neurophysiol Clin 2019. [DOI: 10.1016/j.neucli.2019.10.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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7
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Marchetti R, Vaugoyeau M, Cole P, Assaiante C. Exploration des représentations sensorimotrices chez le jeune adulte dyslexique. Neurophysiol Clin 2019. [DOI: 10.1016/j.neucli.2019.10.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Assaiante C, Vaugoyeau M, Cignetti F. Contrôle anticipé chez des enfants de 8 à 12 ans avec des troubles des apprentissages : importance de la comorbidité. Neurophysiol Clin 2019. [DOI: 10.1016/j.neucli.2019.10.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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9
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Nemmi F, Cignetti F, Assaiante C, Maziero S, Audic F, Péran P, Chaix Y. Discriminating between neurofibromatosis-1 and typically developing children by means of multimodal MRI and multivariate analyses. Hum Brain Mapp 2019; 40:3508-3521. [PMID: 31077476 DOI: 10.1002/hbm.24612] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 04/08/2019] [Accepted: 04/17/2019] [Indexed: 11/08/2022] Open
Abstract
Neurofibromatosis Type 1 leads to brain anomalies involving both gray and white matter. The extent and granularity of these anomalies, together with their possible impact on brain activity, is still unknown. In this multicentric cross-sectional study we submitted a sample of 42 typically developing and 38 neurofibromatosis-1 children to a multimodal MRI assessment including T1, diffusion weighted and resting state functional sequences. We used a pipeline involving several features selection steps coupled with multivariate statistical analysis (supporting vector machine) to discriminate between the two groups while having interpretable models. We used MRI indexes measuring macro (gray matter volume) and microstructural (fractional anisotropy, mean diffusivity) characteristics of the brain, as well as indexes of brain activity (fractional amplitude of low frequency fluctuations) and connectivity (local and global correlation) at rest. We found that structural indexes could discriminate between the two groups, with the mean diffusivity leading to performance as high as the combination of all structural indexes combined (accuracy = 0.86), while functional indexes had worse performances. The MRI signature of NF1 brain pathology is a combination of gray and white matter abnormalities, as measured with gray matter volume, fractional anisotropy, and mean diffusivity.
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Affiliation(s)
- Federico Nemmi
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, Toulouse, France
| | - Fabien Cignetti
- CNRS, LNC, Aix Marseille Université, Marseille, France.,CNRS, Fédération 3C, Aix Marseille Université, Marseille, France.,CNRS, TIMC-IMAG, Université Grenoble Alpes, Grenoble, France
| | - Christine Assaiante
- CNRS, LNC, Aix Marseille Université, Marseille, France.,CNRS, Fédération 3C, Aix Marseille Université, Marseille, France
| | - Stephanie Maziero
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, Toulouse, France.,URI Octogone-Lordat (EA 4156), Université de Toulouse, Toulouse, France
| | - Fredrique Audic
- Service de Neurologie Pédiatrique, CHU Timone-Enfants, Marseille, France
| | - Patrice Péran
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, Toulouse, France
| | - Yves Chaix
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, Toulouse, France
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Cignetti F, Vaugoyeau M, Decker LM, Grosbras MH, Girard N, Chaix Y, Péran P, Assaiante C. Brain network connectivity associated with anticipatory postural control in children and adults. Cortex 2018; 108:210-221. [PMID: 30248609 DOI: 10.1016/j.cortex.2018.08.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 07/16/2018] [Accepted: 08/23/2018] [Indexed: 10/28/2022]
Abstract
Internal models provide a coherent framework for understanding motor behavior. Examples for the use of internal models include anticipatory postural adjustments (APAs), where the individual anticipates and cancels out the destabilizing effect of movement on body posture. Yet little is known about the functional changes in the brain supporting the development of APAs. Here, we addressed this issue by relating individual differences in APAs as assessed during bimanual load lifting to interindividual variation in brain network interactions at rest. We showed that the strength of the connectivity between three main canonical brain networks, namely the cingulo-opercular, the fronto-parietal and the somatosensory-motor networks, is an index of the ability to implement APAs from late childhood (9- to 11-year-old children). We also found an effect of age on the relationship between APAs and coupling strength between these networks, consistent with the notion that APAs are near but not yet fully mature in children. We discuss the implications of these findings for our understanding of learning disorders with impairment in predictive motor control.
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Affiliation(s)
- Fabien Cignetti
- Aix Marseille Univ, CNRS, LNC, Marseille, France; Aix Marseille Univ, CNRS, Fédération 3C, Marseille, France; Univ. Grenoble Alpes, CNRS, TIMC-IMAG, F-38000 Grenoble, France.
| | - Marianne Vaugoyeau
- Aix Marseille Univ, CNRS, LNC, Marseille, France; Aix Marseille Univ, CNRS, Fédération 3C, Marseille, France
| | | | - Marie-Hélène Grosbras
- Aix Marseille Univ, CNRS, LNC, Marseille, France; Aix Marseille Univ, CNRS, Fédération 3C, Marseille, France
| | | | - Yves Chaix
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, France
| | - Patrice Péran
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, France
| | - Christine Assaiante
- Aix Marseille Univ, CNRS, LNC, Marseille, France; Aix Marseille Univ, CNRS, Fédération 3C, Marseille, France
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Barlaam F, Fortin C, Vaugoyeau M, Schmitz C, Assaiante C. Mu-oscillation changes related to the development of anticipatory postural control in children and adolescents. J Neurophysiol 2018; 120:129-138. [DOI: 10.1152/jn.00637.2017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Anticipatory postural adjustments (APAs) cancel the destabilizing effects of movement on posture. Across development, the maturation of APAs is characterized by an accurate adjustment of the timing parameters of electromyographic (EMG) response. The study aimed at investigating the maturation of cortical oscillations involved in the improvement of APAs efficiency. Thirty-six healthy participants (8–16 yr) performed the bimanual load-lifting task in which subjects are instructed to lift a load, placed on the left forearm, with the right hand. EMG data were acquired over the biceps brachii on the postural arm to the determine EMG response onset. Electroencephalographic signals were analyzed in the time-frequency domain by convolution with complex Gaussian Morlet wavelets. Electrophysiological signature of APAs in children and adolescents consisted of a mu-rhythm desynchronization over the sensorimotor cortex contralateral to the postural arm. Across development, the mu-rhythm desynchronization was characterized by a progressive shift forward of the onset of the desynchronization, lower amplitude, and velocity. These changes occurred along with an alteration of the timing of the EMG response, as shown by an earlier onset of the flexor inhibition with increasing age. The maturational changes in the Mu-oscillations might sustain the development of APAs. A possible role of the Mu-oscillation in the generation of postural command is discussed. NEW & NOTEWORTHY Across development, our study showed a progressive shift forward of the parameters of the mu-rhythm desynchronization. These changes occurred along with an alteration of the timing parameters of the electromyographic response, as shown by an earlier onset of the flexor inhibition with increasing age. The progressive development of APAs during childhood and adolescence might therefore be sustained by maturational electrophysiological changes that include mu-rhythm oscillation modifications in the postural sensorimotor cortex.
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Affiliation(s)
- Fanny Barlaam
- Laboratoire de Neurosciences Cognitives, CNRS, Aix Marseille Université, Marseille, France
- Fédération 3C, CNRS, Aix Marseille University, Marseille, France
- Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292, DYCOG Team, Centre Hospitalier Le Vinatier, Bron, France
- University Claude Bernard Lyon 1, Lyon, France
| | - Carole Fortin
- Laboratoire de Neurosciences Cognitives, CNRS, Aix Marseille Université, Marseille, France
- Fédération 3C, CNRS, Aix Marseille University, Marseille, France
| | - Marianne Vaugoyeau
- Laboratoire de Neurosciences Cognitives, CNRS, Aix Marseille Université, Marseille, France
- Fédération 3C, CNRS, Aix Marseille University, Marseille, France
| | - Christina Schmitz
- Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292, DYCOG Team, Centre Hospitalier Le Vinatier, Bron, France
- University Claude Bernard Lyon 1, Lyon, France
| | - Christine Assaiante
- Laboratoire de Neurosciences Cognitives, CNRS, Aix Marseille Université, Marseille, France
- Fédération 3C, CNRS, Aix Marseille University, Marseille, France
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12
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Cignetti F, Vaugoyeau M, Fontan A, Jover M, Livet MO, Hugonenq C, Audic F, Chabrol B, Assaiante C. Feedforward motor control in developmental dyslexia and developmental coordination disorder: Does comorbidity matter? Res Dev Disabil 2018; 76:25-34. [PMID: 29547764 DOI: 10.1016/j.ridd.2018.03.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 02/08/2018] [Accepted: 03/01/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND AND AIM Feedforward and online controls are two facets of predictive motor control from internal models, which is suspected to be impaired in learning disorders. We examined whether the feedforward component is affected in children (8-12 years) with developmental dyslexia (DD) and/or with developmental coordination disorder (DCD) compared to typically developing (TD) children. METHODS Children underwent a bimanual unloading paradigm during which a load supported to one arm, the postural arm, was either unexpectedly unloaded by a computer or voluntary unloaded by the subject with the other arm. RESULTS All children showed a better stabilization (lower flexion) of the postural arm and an earlier inhibition of the arm flexors during voluntary unloading, indicating anticipation of unloading. Between-group comparisons of kinematics and electromyographic activity of the postural arm revealed that the difference during voluntary unloading was between DD-DCD children and the other groups, with the former showing a delayed inhibition of the flexor muscles. CONCLUSION Deficit of the feedforward component of motor control may particularly apply to comorbid subtypes, here the DD-DCD subtype. The development of a comprehensive framework for motor performance deficits in children with learning disorders will be achieved only by dissociating key components of motor prediction and focusing on subtypes and comorbidities.
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Affiliation(s)
- Fabien Cignetti
- Aix-Marseille Université, CNRS, LNC UMR 7291, Marseille, France; Aix-Marseille Université, CNRS, FR 3512, Marseille, France; Univ. Grenoble Alpes, CNRS, TIMC-IMAG, F-38000 Grenoble, France.
| | - Marianne Vaugoyeau
- Aix-Marseille Université, CNRS, LNC UMR 7291, Marseille, France; Aix-Marseille Université, CNRS, FR 3512, Marseille, France
| | - Aurelie Fontan
- Aix-Marseille Université, CNRS, LNC UMR 7291, Marseille, France; Aix-Marseille Université, CNRS, FR 3512, Marseille, France
| | | | - Marie-Odile Livet
- Service de Pédiatrie, Centre Hospitalier du pays d'Aix, Aix-en-Provence, France
| | - Catherine Hugonenq
- Service de Neurologie Pédiatrique, CHU Timone-Enfants, Marseille, France
| | - Frédérique Audic
- Service de Neurologie Pédiatrique, CHU Timone-Enfants, Marseille, France
| | - Brigitte Chabrol
- Service de Neurologie Pédiatrique, CHU Timone-Enfants, Marseille, France
| | - Christine Assaiante
- Aix-Marseille Université, CNRS, LNC UMR 7291, Marseille, France; Aix-Marseille Université, CNRS, FR 3512, Marseille, France
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13
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Cignetti F, Fontan A, Menant J, Nazarian B, Anton JL, Vaugoyeau M, Assaiante C. Protracted Development of the Proprioceptive Brain Network During and Beyond Adolescence. Cereb Cortex 2018; 27:1285-1296. [PMID: 26733535 DOI: 10.1093/cercor/bhv323] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Proprioceptive processing is important for appropriate motor control, providing error-feedback and internal representation of movement for adjusting the motor command. Although proprioceptive functioning improves during childhood and adolescence, we still have few clues about how the proprioceptive brain network develops. Here, we investigated developmental changes in the functional organization of this network in early adolescents (n = 18, 12 ± 1 years), late adolescents (n = 18, 15 ± 1), and young adults (n = 18, 32 ± 4), by examining task-evoked univariate activity and patterns of functional connectivity (FC) associated with seeds placed in cortical (supramarginal gyrus) and subcortical (dorsal rostral putamen) regions. We found that although the network is already well established in early adolescence both in terms of topology and functioning principles (e.g., long-distance communication and economy in wiring cost), it is still undergoing refinement during adolescence, including a shift from diffuse to focal FC and a decreased FC strength. This developmental effect was particularly pronounced for fronto-striatal connections. Furthermore, changes in FC features continued beyond adolescence, although to a much lower extent. Altogether, these findings point to a protracted developmental time course for the proprioceptive network, which breaks with the relatively early functional maturation often associated with sensorimotor networks.
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Affiliation(s)
| | | | - Jasmine Menant
- Neuroscience Research Australia and University of New South Wales, Sydney, New South Wales, Australia
| | - Bruno Nazarian
- INT UMR 7289, Centre IRM Fonctionnelle Cérébrale, Aix-Marseille Université, CNRS, Marseille, France
| | - Jean-Luc Anton
- INT UMR 7289, Centre IRM Fonctionnelle Cérébrale, Aix-Marseille Université, CNRS, Marseille, France
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Fontan A, Cignetti F, Vaugoyeau M, Assaiante C. Approche corrélationnelle entre cerveau et acuité proprioceptive chez l’enfant. Neurophysiol Clin 2017. [DOI: 10.1016/j.neucli.2017.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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15
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Sapey-Triomphe LA, Centelles L, Roth M, Fonlupt P, Hénaff MA, Schmitz C, Assaiante C. Deciphering human motion to discriminate social interactions: a developmental neuroimaging study. Soc Cogn Affect Neurosci 2017; 12:340-351. [PMID: 28008075 PMCID: PMC5390742 DOI: 10.1093/scan/nsw117] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 08/12/2016] [Indexed: 12/27/2022] Open
Abstract
Non-verbal communication plays a major role in social interaction understanding. Using functional magnetic resonance imaging, we explored the development of the neural networks involved in social interaction recognition based on human motion in children (8–11), adolescents (13–17), and adults (20–41). Participants watched point-light videos depicting two actors interacting or moving independently and were asked whether these agents were interacting or not. All groups successfully performed the discrimination task, but children had a lower performance and longer response times than the older groups. In all three groups, the posterior parts of the superior temporal sulci and middle temporal gyri, the inferior frontal gyri and the anterior temporal lobes showed greater activation when observing social interactions. In addition, adolescents and adults recruited the caudate nucleus and some frontal regions that are part of the mirror system. Adults showed greater activations in parietal and frontal regions (part of them belonging to the social brain) than adolescents. An increased number of regions that are part of the mirror system network or the social brain, as well as the caudate nucleus, were recruited with age. In conclusion, a shared set of brain regions enabling the discrimination of social interactions from neutral movements through human motion is already present in 8-year-old children. Developmental processes such as refinements in the social brain and mirror system would help grasping subtle cues in non-verbal aspects of social interactions.
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Affiliation(s)
- Laurie-Anne Sapey-Triomphe
- Lyon Neuroscience Research Center, Brain Dynamics and Cognition Team, CRNL, INSERM U1028, CNRS UMR5292, Lyon, F-69000, France.,University Lyon 1, Lyon, F-69000, France.,Ecole Normale Supérieure de Lyon, Lyon, France
| | - Laurie Centelles
- Aix-Marseille Université, CNRS, LNC UMR 7291, Marseille, France.,Aix-Marseille Université, CNRS, FR 3512, Marseille, France
| | - Muriel Roth
- Aix-Marseille Université, CNRS, INT UMR 7289, Centre IRM Fonctionnelle, CHU La Timone, Marseille, France
| | - Pierre Fonlupt
- Lyon Neuroscience Research Center, Brain Dynamics and Cognition Team, CRNL, INSERM U1028, CNRS UMR5292, Lyon, F-69000, France.,University Lyon 1, Lyon, F-69000, France
| | - Marie-Anne Hénaff
- Lyon Neuroscience Research Center, Brain Dynamics and Cognition Team, CRNL, INSERM U1028, CNRS UMR5292, Lyon, F-69000, France.,University Lyon 1, Lyon, F-69000, France
| | - Christina Schmitz
- Lyon Neuroscience Research Center, Brain Dynamics and Cognition Team, CRNL, INSERM U1028, CNRS UMR5292, Lyon, F-69000, France.,University Lyon 1, Lyon, F-69000, France
| | - Christine Assaiante
- Aix-Marseille Université, CNRS, LNC UMR 7291, Marseille, France.,Aix-Marseille Université, CNRS, FR 3512, Marseille, France
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Cignetti F, Chabeauti PY, Menant J, Anton JLJJ, Schmitz C, Vaugoyeau M, Assaiante C. Gravity Cues Embedded in the Kinematics of Human Motion Are Detected in Form-from-Motion Areas of the Visual System and in Motor-Related Areas. Front Psychol 2017; 8:1396. [PMID: 28861024 PMCID: PMC5562714 DOI: 10.3389/fpsyg.2017.01396] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 07/31/2017] [Indexed: 11/18/2022] Open
Abstract
The present study investigated the cortical areas engaged in the perception of graviceptive information embedded in biological motion (BM). To this end, functional magnetic resonance imaging was used to assess the cortical areas active during the observation of human movements performed under normogravity and microgravity (parabolic flight). Movements were defined by motion cues alone using point-light displays. We found that gravity modulated the activation of a restricted set of regions of the network subtending BM perception, including form-from-motion areas of the visual system (kinetic occipital region, lingual gyrus, cuneus) and motor-related areas (primary motor and somatosensory cortices). These findings suggest that compliance of observed movements with normal gravity was carried out by mapping them onto the observer's motor system and by extracting their overall form from local motion of the moving light points. We propose that judgment on graviceptive information embedded in BM can be established based on motor resonance and visual familiarity mechanisms and not necessarily by accessing the internal model of gravitational motion stored in the vestibular cortex.
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Affiliation(s)
- Fabien Cignetti
- Aix-Marseille Université, CNRS, LNC, Laboratoire de Neurosciences CognitivesMarseille, France
- Aix-Marseille Université, CNRS, Fédération 3CMarseille, France
| | - Pierre-Yves Chabeauti
- Aix-Marseille Université, CNRS, LNC, Laboratoire de Neurosciences CognitivesMarseille, France
- Aix-Marseille Université, CNRS, Fédération 3CMarseille, France
| | - Jasmine Menant
- Prince of Wales Medical Research Institute, School of Public Health and Community Medicine, University of New South Wales, RandwickNSW, Australia
| | - Jean-Luc J. J. Anton
- Aix-Marseille Université, CNRS, INT UMR 7289, Centre IRM FonctionnelleMarseille, France
| | - Christina Schmitz
- Lyon Neuroscience Research Center, Brain Dynamics and Cognition Team, CRNL, INSERM U1028, CNRS UMR 5292Lyon, France
- University Lyon 1Lyon, France
| | - Marianne Vaugoyeau
- Aix-Marseille Université, CNRS, LNC, Laboratoire de Neurosciences CognitivesMarseille, France
- Aix-Marseille Université, CNRS, Fédération 3CMarseille, France
| | - Christine Assaiante
- Aix-Marseille Université, CNRS, LNC, Laboratoire de Neurosciences CognitivesMarseille, France
- Aix-Marseille Université, CNRS, Fédération 3CMarseille, France
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Agathos CP, Bernardin D, Baranton K, Assaiante C, Isableu B. Drifting while stepping in place in old adults: Association of self-motion perception with reference frame reliance and ground optic flow sensitivity. Neuroscience 2017; 347:134-147. [DOI: 10.1016/j.neuroscience.2017.01.044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 01/13/2017] [Accepted: 01/28/2017] [Indexed: 12/22/2022]
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Fontan A, Cignetti F, Nazarian B, Anton JL, Vaugoyeau M, Assaiante C. How does the body representation system develop in the human brain? Dev Cogn Neurosci 2017; 24:118-128. [PMID: 28314184 PMCID: PMC6987789 DOI: 10.1016/j.dcn.2017.02.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 12/27/2016] [Accepted: 02/25/2017] [Indexed: 12/11/2022] Open
Abstract
Exploration of the body representation system (BRS) from kinaesthetic illusions in fMRI has revealed a complex network composed of sensorimotor and frontoparietal components. Here, we evaluated the degree of maturity of this network in children aged 7-11 years, and the extent to which structural factors account for network differences with adults. Brain activation following tendon vibration at 100Hz ('illusion') and 30Hz ('no illusion') were analysed using the two-stage random effects model, with or without white and grey matter covariates. The BRS was already well established in children as revealed by the contrast 'illusion' vs 'no illusion', although still immature in some aspects. This included a lower level of activation in primary somatosensory and posterior parietal regions, and the exclusive activation of the frontopolar cortex (FPC) in children compared to adults. The former differences were related to structure, while the latter difference reflected a functional strategy where the FPC may serve as the 'top' in top-down modulation of the activity of the other BRS regions to facilitate the establishment of body representations. Hence, the development of the BRS not only relies on structural maturation, but also involves the disengagement of an executive region not classically involved in body processing.
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Affiliation(s)
- Aurelie Fontan
- Aix Marseille Univ, CNRS, LNC, Laboratoire de Neurosciences Cognitives, Marseille, France; Aix Marseille Univ, CNRS, Fédération 3C, Marseille, France
| | - Fabien Cignetti
- Aix Marseille Univ, CNRS, LNC, Laboratoire de Neurosciences Cognitives, Marseille, France; Aix Marseille Univ, CNRS, Fédération 3C, Marseille, France
| | - Bruno Nazarian
- Aix-Marseille Université, CNRS, INT UMR 7289, Centre IRM, France
| | - Jean-Luc Anton
- Aix-Marseille Université, CNRS, INT UMR 7289, Centre IRM, France
| | - Marianne Vaugoyeau
- Aix Marseille Univ, CNRS, LNC, Laboratoire de Neurosciences Cognitives, Marseille, France; Aix Marseille Univ, CNRS, Fédération 3C, Marseille, France
| | - Christine Assaiante
- Aix Marseille Univ, CNRS, LNC, Laboratoire de Neurosciences Cognitives, Marseille, France; Aix Marseille Univ, CNRS, Fédération 3C, Marseille, France.
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Fontan A, Cignetti F, Vaugoyeau M, Assaiante C. Exploration des bases neurales des représentations du corps en action : étude développementale. Neurophysiol Clin 2016. [DOI: 10.1016/j.neucli.2016.09.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Cignetti F, Salvia E, Anton JL, Grosbras MH, Assaiante C. Pros and Cons of Using the Informed Basis Set to Account for Hemodynamic Response Variability with Developmental Data. Front Neurosci 2016; 10:322. [PMID: 27471441 PMCID: PMC4945642 DOI: 10.3389/fnins.2016.00322] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 06/27/2016] [Indexed: 01/22/2023] Open
Abstract
Conventional analysis of functional magnetic resonance imaging (fMRI) data using the general linear model (GLM) employs a neural model convolved with a canonical hemodynamic response function (HRF) peaking 5 s after stimulation. Incorporation of a further basis function, namely the canonical HRF temporal derivative, accounts for delays in the hemodynamic response to neural activity. A population that may benefit from this flexible approach is children whose hemodynamic response is not yet mature. Here, we examined the effects of using the set based on the canonical HRF plus its temporal derivative on both first- and second-level GLM analyses, through simulations and using developmental data (an fMRI dataset on proprioceptive mapping in children and adults). Simulations of delayed fMRI first-level data emphasized the benefit of carrying forward to the second-level a derivative boost that combines derivative and nonderivative beta estimates. In the experimental data, second-level analysis using a paired t-test showed increased mean amplitude estimate (i.e., increased group contrast mean) in several brain regions related to proprioceptive processing when using the derivative boost compared to using only the nonderivative term. This was true especially in children. However, carrying forward to the second-level the individual derivative boosts had adverse consequences on random-effects analysis that implemented one-sample t-test, yielding increased between-subject variance, thus affecting group-level statistic. Boosted data also presented a lower level of smoothness that had implication for the detection of group average activation. Imposing soft constraints on the derivative boost by limiting the time-to-peak range of the modeled response within a specified range (i.e., 4–6 s) mitigated these issues. These findings support the notion that there are pros and cons to using the informed basis set with developmental data.
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Affiliation(s)
- Fabien Cignetti
- Centre National de la Recherche Scientifique, Laboratoire de Neurosciences Cognitives UMR 7291, Aix-Marseille UniversitéMarseille, France; Centre National de la Recherche Scientifique, Fédération 3C (FR 3512), Aix-Marseille UniversitéMarseille, France
| | - Emilie Salvia
- Centre National de la Recherche Scientifique, Laboratoire de Neurosciences Cognitives UMR 7291, Aix-Marseille UniversitéMarseille, France; Centre National de la Recherche Scientifique, Fédération 3C (FR 3512), Aix-Marseille UniversitéMarseille, France
| | - Jean-Luc Anton
- Centre National de la Recherche Scientifique, Centre IRM Fonctionnelle Cérébrale, Institut de Neurosciences de la Timone UMR 7289, Aix-Marseille Université Marseille, France
| | - Marie-Hélène Grosbras
- Centre National de la Recherche Scientifique, Laboratoire de Neurosciences Cognitives UMR 7291, Aix-Marseille UniversitéMarseille, France; Centre National de la Recherche Scientifique, Fédération 3C (FR 3512), Aix-Marseille UniversitéMarseille, France
| | - Christine Assaiante
- Centre National de la Recherche Scientifique, Laboratoire de Neurosciences Cognitives UMR 7291, Aix-Marseille UniversitéMarseille, France; Centre National de la Recherche Scientifique, Fédération 3C (FR 3512), Aix-Marseille UniversitéMarseille, France
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Barlaam F, Vaugoyeau M, Fortin C, Assaiante C, Schmitz C. Shift of the Muscular Inhibition Latency during On-Line Acquisition of Anticipatory Postural Adjustments. PLoS One 2016; 11:e0154775. [PMID: 27192604 PMCID: PMC4871431 DOI: 10.1371/journal.pone.0154775] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 04/14/2016] [Indexed: 11/19/2022] Open
Abstract
During action, Anticipatory Postural Adjustments (APAs) cancel the consequences of a movement on postural stabilization. Their muscular expression is characterized by early changes in the activity of the postural muscles, before the movement begins. To explore the mechanisms enabling the acquisition of APAs, a learning paradigm was designed in which the voluntary lifting of a load with one hand triggered the unloading of another load suspended below the contralateral forearm. The aim of this study was to investigate changes in the muscular expression that uncovers the progressive learning of new APAs. A trial-by-trial analysis of kinematic and electromyographic signals recorded on the right arm was conducted in twelve adults through six sessions of learning. Kinematic results reported an enhancement of the postural stabilization across learning. The main EMG pattern found during learning consisted of a flexor inhibition, where latency was shifted towards an earlier occurrence in parallel with the improvement of the postural performance. A linear regression analysis conducted between the inhibition latency and the maximal amplitude of elbow rotation showed that the earlier the inhibition onset, the better the postural stabilization. This study revealed that the progressive shift of the postural flexor inhibition latency could be considered as a reliable neurophysiological marker of the progressive learning of new APAs. Importantly, this marker could be used to track motor learning abnormalities in pathology. We relate our findings to the update of a forward predictive model of action, defined as a system that predicts beforehand the consequences of the action on posture.
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Affiliation(s)
- Fanny Barlaam
- Aix-Marseille University, CNRS, UMR 7291: Laboratory of Cognitive Neuroscience, Marseille, France
- Fédération de Recherche N3512, Comportement, Cerveau, Cognition, Marseille, France
- Lyon Neuroscience Research Center, Brain Dynamics and Cognition Team, CRNL, INSERM U1028, CNRS UMR5292, Lyon, France
- University Lyon 1, Lyon, France
| | - Marianne Vaugoyeau
- Fédération de Recherche N3512, Comportement, Cerveau, Cognition, Marseille, France
| | - Carole Fortin
- Aix-Marseille University, CNRS, UMR 7291: Laboratory of Cognitive Neuroscience, Marseille, France
- Fédération de Recherche N3512, Comportement, Cerveau, Cognition, Marseille, France
| | - Christine Assaiante
- Aix-Marseille University, CNRS, UMR 7291: Laboratory of Cognitive Neuroscience, Marseille, France
- Fédération de Recherche N3512, Comportement, Cerveau, Cognition, Marseille, France
| | - Christina Schmitz
- Lyon Neuroscience Research Center, Brain Dynamics and Cognition Team, CRNL, INSERM U1028, CNRS UMR5292, Lyon, France
- University Lyon 1, Lyon, France
- * E-mail:
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Agathos CP, Bernardin D, Huchet D, Scherlen AC, Assaiante C, Isableu B. Sensorimotor and cognitive factors associated with the age-related increase of visual field dependence: a cross-sectional study. Age (Dordr) 2015; 37:9805. [PMID: 26122710 PMCID: PMC4485658 DOI: 10.1007/s11357-015-9805-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 06/21/2015] [Indexed: 06/04/2023]
Abstract
Reliance on the visual frame of reference for spatial orientation (or visual field dependence) has been reported to increase with age. This has implications on old adults' daily living tasks as it affects stability, attention, and adaptation capacities. However, the nature and underlying mechanisms of this increase are not well defined. We investigated sensorimotor and cognitive factors possibly associated with increased visual field dependence in old age, by considering functions that are both known to degrade with age and important for spatial orientation and sensorimotor control: reliance on the (somatosensory-based) egocentric frame of reference, visual fixation stability, and attentional processing of complex visual scenes (useful field of view, UFOV). Twenty young, 18 middle-aged, and 20 old adults completed a visual examination, three tests of visual field dependence (RFT, RDT, and GEFT), a test of egocentric dependence (subjective vertical estimation with the body erect and tilted at 70°), a visual fixation task, and a test of visual attentional processing (UFOV®). Increased visual field dependence with age was associated with reduced egocentric dependence, visual fixation stability, and visual attentional processing. In addition, visual fixation instability and reduced UFOV were correlated. Results of middle-aged adults fell between those of the young and old, revealing the progressive nature of the age effects we evaluated. We discuss results in terms of reference frame selection with respect to ageing as well as visual and non-visual information processing. Inter-individual differences amongst old adults are highlighted and discussed with respect to the functionality of increased visual field dependence.
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Affiliation(s)
- Catherine P Agathos
- R&D Optics Department, Vision Sciences Department, Essilor International, 75012, Paris, France,
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Cignetti F, Vaugoyeau M, Nazarian B, Roth M, Anton JL, Assaiante C. Boosted activation of right inferior frontoparietal network: a basis for illusory movement awareness. Hum Brain Mapp 2014; 35:5166-78. [PMID: 24798824 DOI: 10.1002/hbm.22541] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 04/17/2014] [Accepted: 04/21/2014] [Indexed: 11/11/2022] Open
Abstract
The feeling of illusory movement is considered important in the study of human behavior because it is deeply related to motor consciousness. However, the neural basis underlying the illusion of movement remains to be understood. Following optimal vibratory stimulation of muscle tendon, certain subjects experience illusory movements while others do not. In the present fMRI study, we sought to uncover the neural basis of illusory movement awareness by contrasting a posteriori these two types of subjects. Examining fMRI data using leave-one-subject-out general linear models and region of interest analyses, we found that a non-limb-specific associative network, including the opercular part of the right inferior frontal gyrus and the right inferior parietal lobule, was more active in subjects with illusions. On the other hand, levels of activation in other brain areas involved in kinaesthetic processing were rather similar between the two subsamples of subjects. These results suggest that activation of the right inferior frontoparietal areas, once passed a certain threshold, forms the basis of illusory movements. This is consistent with the global neuronal workspace hypothesis that associates conscious processing with surges of frontoparietal activity.
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Affiliation(s)
- Fabien Cignetti
- Aix-Marseille Université, CNRS, LNC UMR, 7291, Marseille, France; Aix-Marseille Université, CNRS, FR, 3512, Marseille, France
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Assaiante C. Manual tasks and postural control: A developmental approach. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Assaiante C, Barlaam F, Cignetti F, Vaugoyeau M. Body schema building during childhood and adolescence: A neurosensory approach. Neurophysiol Clin 2014; 44:3-12. [DOI: 10.1016/j.neucli.2013.10.125] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Accepted: 10/14/2013] [Indexed: 10/26/2022] Open
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Cignetti F, Nazarian B, Anton JL, Vaugoyeau M, Assaiante C. Bases corticales de la sensation de mouvement illusoire. Neurophysiol Clin 2014. [DOI: 10.1016/j.neucli.2013.10.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Barlaam F, Fortin C, Vaugoyeau M, Schmitz C, Assaiante C. Rythme mu et précision temporelle de l’inhibition musculaire : une longue maturation au cours de l’adolescence. Neurophysiol Clin 2014. [DOI: 10.1016/j.neucli.2013.10.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Cignetti F, Chabeauti PY, Sveistrup H, Vaugoyeau M, Assaiante C. Updating process of internal models of action as assessed from motor and postural strategies in children. Neuroscience 2013; 233:127-38. [DOI: 10.1016/j.neuroscience.2012.12.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Revised: 12/20/2012] [Accepted: 12/21/2012] [Indexed: 10/27/2022]
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Cignetti F, Zedka M, Vaugoyeau M, Assaiante C. Independent walking as a major skill for the development of anticipatory postural control: evidence from adjustments to predictable perturbations. PLoS One 2013; 8:e56313. [PMID: 23409171 PMCID: PMC3567049 DOI: 10.1371/journal.pone.0056313] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 01/11/2013] [Indexed: 11/23/2022] Open
Abstract
Although there is suggestive evidence that a link exists between independent walking and the ability to establish anticipatory strategy to stabilize posture, the extent to which this skill facilitates the development of anticipatory postural control remains largely unknown. Here, we examined the role of independent walking on the infants' ability to anticipate predictable external perturbations. Non-walking infants, walking infants and adults were sitting on a platform that produced continuous rotation in the frontal plane. Surface electromyography (EMG) of neck and lower back muscles and the positions of markers located on the platform, the upper body and the head were recorded. Results from cross-correlation analysis between rectified and filtered EMGs and platform movement indicated that although muscle activation already occurred before platform movement in non-walking infants, only walking infants demonstrated an adult-like ability for anticipation. Moreover, results from further cross-correlation analysis between segmental angular displacement and platform movement together with measures of balance control at the end-points of rotation of the platform evidenced two sorts of behaviour. The adults behaved as a non-rigid non-inverted pendulum, rather stabilizing head in space, while both the walking and non-walking infants followed the platform, behaving as a rigid inverted pendulum. These results suggest that the acquisition of independent walking plays a role in the development of anticipatory postural control, likely improving the internal model for the sensorimotor control of posture. However, despite such improvement, integrating the dynamics of an external object, here the platform, within the model to maintain balance still remains challenging in infants.
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Affiliation(s)
- Fabien Cignetti
- Laboratoire de Neurosciences Cognitives (LNC - UMR 7291), Centre National de la Recherche Scientifique, Marseille, France
- Aix-Marseille Université, Marseille, France
- Fédération de Recherche N3512, Comportement-Cerveau-Cognition, Marseille, France
| | - Milan Zedka
- Division of Paediatric Neurology, Department of Paediatrics, Inselspital, University of Bern, Bern, Switzerland
| | - Marianne Vaugoyeau
- Laboratoire de Neurosciences Cognitives (LNC - UMR 7291), Centre National de la Recherche Scientifique, Marseille, France
- Aix-Marseille Université, Marseille, France
- Fédération de Recherche N3512, Comportement-Cerveau-Cognition, Marseille, France
| | - Christine Assaiante
- Laboratoire de Neurosciences Cognitives (LNC - UMR 7291), Centre National de la Recherche Scientifique, Marseille, France
- Aix-Marseille Université, Marseille, France
- Fédération de Recherche N3512, Comportement-Cerveau-Cognition, Marseille, France
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Fortin C, Barlaam F, Vaugoyeau M, Schmitz C, Assaiante C. Marqueurs comportementaux et cérébraux de l’organisation centrale de la coordination posture-mouvement et de l’anticipation chez l’enfant. Neurophysiol Clin 2012. [DOI: 10.1016/j.neucli.2012.09.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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32
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Assaiante C. Construction du schéma corporel au cours de l’enfance et de l’adolescence : approche neurosensorielle. Neurophysiol Clin 2012. [DOI: 10.1016/j.neucli.2012.09.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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33
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Lelard T, Temfemo A, Bastide L, Assaiante C, Ahmaidi S. Performance posturale et doubles tâches : les différences enfants adultes. Neurophysiol Clin 2012. [DOI: 10.1016/j.neucli.2012.09.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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34
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Barlaam F, Fortin C, Vaugoyeau M, Schmitz C, Assaiante C. Development of action representation during adolescence as assessed from anticipatory control in a bimanual load-lifting task. Neuroscience 2012; 221:56-68. [DOI: 10.1016/j.neuroscience.2012.06.062] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 06/21/2012] [Accepted: 06/23/2012] [Indexed: 11/26/2022]
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Chabeauti PY, Assaiante C, Vaugoyeau M. Extreme short-term environmental constraints do not update internal models of action as assessed from motor imagery in adults. Neuroscience 2012; 222:69-74. [PMID: 22796070 DOI: 10.1016/j.neuroscience.2012.07.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 07/05/2012] [Accepted: 07/05/2012] [Indexed: 10/28/2022]
Abstract
According to the simulation theory, the internal simulation of a movement (imagined movement, IM) and its execution (actual movement, AM) are based on the same motor representations. The brain uses these representations for controlling action. The specific objective of this study was to investigate the updating process of internal models of action in adults, through massive environmental changes involved by microgravity (0G). 0G has multiple effects on motor control, including short-term adaptations with respect to the planification and performance of actions. However, the effects of 0G on internal representations of action are still largely unknown. To address this issue, thirteen subjects performed first sit-to-stand (STS) and back-to-sit (BTS) tasks, and subsequently had to imagine movement performance in these tasks. The tasks were performed under normogravity (1G) and 0G conditions. Based on durations of actual and IMs, two main results emerged from this study. In 1G, actual and IM's durations were similar. However, in 0G, AM durations were significantly longer than IM durations. Furthermore, IM durations in 0G were similar to the 1G value. These results show that although the planification and execution of action were immediately adapted to the 0G condition, the storage of afferent information was inadequate to recalibrate the predictive model. These results suggest that sudden change in gravity was not considered for updating internal models of action, and that forward model probably required more practice in order to integrate the modification of the sensorial feedback generated by the new environmental constraints.
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Affiliation(s)
- P Y Chabeauti
- LNC, Equipe Chronométrie et Dynamique Cérébrale, Pôle 3C UMR 7291, Université de Provence et CNRS, Marseille, France
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36
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Centelles L, Assaiante C, Etchegoyhen K, Bouvard M, Schmitz C. Compréhension des interactions sociales chez des enfants atteints de troubles du spectre de l’autisme : le langage du corps leur « parle »-t-il ? Encephale 2012; 38:232-40. [DOI: 10.1016/j.encep.2011.08.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Accepted: 05/18/2011] [Indexed: 11/16/2022]
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37
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Assaiante C. Action and representation of action during childhood and adolescence: A functional approach. Neurophysiol Clin 2012; 42:43-51. [PMID: 22200341 DOI: 10.1016/j.neucli.2011.09.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Accepted: 09/26/2011] [Indexed: 10/16/2022] Open
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38
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Barlaam F, Descoins M, Bertrand O, Hasbroucq T, Vidal F, Assaiante C, Schmitz C. Time-Frequency and ERP Analyses of EEG to Characterize Anticipatory Postural Adjustments in a Bimanual Load-Lifting Task. Front Hum Neurosci 2011; 5:163. [PMID: 22232581 PMCID: PMC3247012 DOI: 10.3389/fnhum.2011.00163] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Accepted: 11/22/2011] [Indexed: 11/13/2022] Open
Abstract
Anticipatory postural adjustments (APAs) compensate in advance for the destabilizing effect of a movement. This study investigated the specific involvement of each primary motor cortex (M1) during a bimanual load-lifting task in which subjects were required to maintain a stable forearm position during voluntary unloading. Kinematics, electromyographic, and electroencephalographic (EEG) data were recorded in eight right-handed healthy subjects lifting a load placed on their left forearm. Two EEG analyses were performed: a time-frequency (TF) analysis and an event-related potential (ERP) analysis. The TF analysis revealed a mean power decrease in the mu rhythm over the left and right M1 concomitant with lifting onset. Each decrease showed specific features: over the right M1, contralateral to the postural forearm, there was a steeper slope and a greater amplitude than over the left M1. Although a mu rhythm desynchronization has until now been the signature of cortical activity related to a motor component, we show that it can also be related to postural stabilization. We discuss the involvement of the mu rhythm desynchronization over the postural M1 in the high temporal precision enabling efficient APAs. ERP analysis showed a negative wave over the left M1 and a concomitant positive wave over the right M1. While the negative wave classically reflects M1 recruitment related to the forthcoming lifting, the novelty here is that the positive wave reflects the transmission of inhibitory commands toward the postural forearm.
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Affiliation(s)
- Fanny Barlaam
- CNRS UMR6149, Laboratory of Integrative and Adaptive Neurobiology, University of Provence Marseille Marseille, France
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Centelles L, Assaiante C, Schmitz C. Le corps en action : un indice clef pour comprendre le développement des interactions sociales. Enfance 2011. [DOI: 10.3917/enf1.114.0407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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40
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Barlaam F, Fortin C, Vaugoyeau M, Schmitz C, Assaiante C. Représentation de l’action et anticipation : apprentissage d’une nouvelle coordination posture-mouvement au cours de l’adolescence. Neurophysiol Clin 2011. [DOI: 10.1016/j.neucli.2011.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
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41
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Chabeauti PY, Vaugoyeau M, Anton JL, Schmitz C, Assaiante C. Perception du Mouvement Humain (MH) réalisé en microgravité : une étude en IRM fonctionnelle. Neurophysiol Clin 2011. [DOI: 10.1016/j.neucli.2011.10.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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42
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Assaiante C. Action et representation de l’action au cours de l’enfance et de l’adolescence : une approche fonctionnelle. ACTA ACUST UNITED AC 2011. [DOI: 10.1051/sm/20111114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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43
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Cuisinier R, Olivier I, Vaugoyeau M, Nougier V, Assaiante C. Reweighting of sensory inputs to control quiet standing in children from 7 to 11 and in adults. PLoS One 2011; 6:e19697. [PMID: 21573028 PMCID: PMC3090421 DOI: 10.1371/journal.pone.0019697] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Accepted: 04/14/2011] [Indexed: 12/02/2022] Open
Abstract
How sensory organization for postural control matures in children is not clear at this time. The present study examined, in children aged 7 to 11 and in adults, the postural control modifications in quiet standing when somatosensory inputs from the ankle were disturbed. Since the reweighting of sensory inputs is not mature before 10, we hypothesized that postural stability was more affected in children than in adults when somatosensory inputs were altered and that this postural instability decreased as age increased during childhood. 37 children aged 7 to 11 years and 9 adults participated in the experiments. The postural task was a semi-tandem position with the right foot in front of the left one. Postural performance was measured by means of a force platform. Two experimental conditions were presented to the participants to maintain quiet standing: With or without altered somatosensory inputs (i.e., with or without ankles vibration). Results showed that postural stability -and thus how the reweighting process of the visual/somatosensory inputs matured- increased non-monotonically between 7 years of age and adult age: There was a linear improvement of postural stability from 7 to 10, followed by a more steady behaviour between 10 and 11 and then postural stability increased to reach the adults' level of performance.
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Affiliation(s)
- Rémy Cuisinier
- UJF-Grenoble 1/CNRS/TIMC-IMAG UMR 5525, Grenoble, France
| | - Isabelle Olivier
- UJF-Grenoble 1/CNRS/TIMC-IMAG UMR 5525, Grenoble, France
- * E-mail:
| | - Marianne Vaugoyeau
- UMR CNRS 61 49 Groupe “Développement et Pathologie de l'Action”, Université de Provence, Marseille, France
| | | | - Christine Assaiante
- UMR CNRS 61 49 Groupe “Développement et Pathologie de l'Action”, Université de Provence, Marseille, France
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Assaiante C, Chabeauti PY, Sveistrup H, Vaugoyeau M. Updating process of internal model of action as assessed from motor and postural strategies in young adults. Hum Mov Sci 2011; 30:227-37. [DOI: 10.1016/j.humov.2010.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2009] [Revised: 04/29/2010] [Accepted: 05/31/2010] [Indexed: 11/30/2022]
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Centelles L, Assaiante C, Nazarian B, Anton JL, Schmitz C. Recruitment of both the mirror and the mentalizing networks when observing social interactions depicted by point-lights: a neuroimaging study. PLoS One 2011; 6:e15749. [PMID: 21249224 PMCID: PMC3018423 DOI: 10.1371/journal.pone.0015749] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Accepted: 11/29/2010] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Understanding social interactions requires the ability to accurately interpret conspecifics' actions, sometimes only on the basis of subtle body language analysis. Here we address an important issue that has not yet received much attention in social neuroscience, that of an interaction between two agents. We attempted to isolate brain responses to two individuals interacting compared to two individuals acting independently. METHODOLOGY/PRINCIPAL FINDINGS We used minimalistic point-light displays to depict the characters, as they provide the most straightforward way to isolate mechanisms used to extract information from motion per se without any interference with other visual information. Functional magnetic resonance imaging (fMRI) method was used to determine which brain regions were recruited during the observation of two interacting agents, mimicking everyday social scenes. While the mirror and mentalizing networks are rarely concurrently active, we found that both of them might be needed to catch the social intentions carried by whole-body motion. CONCLUSIONS/SIGNIFICANCE These findings shed light on how motor cognition contributes to social cognition when social information is embedded in whole-body motion only. Finally, the approach described here provides a valuable and original tool for investigating the brain networks responsible for social understanding, in particular in psychiatric disorders.
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Affiliation(s)
- Laurie Centelles
- Laboratoire Neurosciences Intégratives & Adaptatives - Université de Provence & Centre National de la Recherche Scientifique, Marseille, France
- Laboratoire Motricité Adaptation et Cognition - Centre National de la Recherche Scientifique, Bordeaux, France
| | - Christine Assaiante
- Laboratoire Neurosciences Intégratives & Adaptatives - Université de Provence & Centre National de la Recherche Scientifique, Marseille, France
| | - Bruno Nazarian
- Centre d'IRM Fonctionnelle Cérébrale - Centre Hospitalier Universitaire de la Timone, Marseille, France
| | - Jean-Luc Anton
- Centre d'IRM Fonctionnelle Cérébrale - Centre Hospitalier Universitaire de la Timone, Marseille, France
| | - Christina Schmitz
- Laboratoire Neurosciences Intégratives & Adaptatives - Université de Provence & Centre National de la Recherche Scientifique, Marseille, France
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46
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Assaiante C. Building of action and representation of action during infancy, childhood and adolescence. BIO Web of Conferences 2011. [DOI: 10.1051/bioconf/20110100005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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47
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Azulay JP, Cantiniaux S, Vacherot F, Vaugoyeau M, Assaiante C. Locomozione: fisiologia, tecniche di analisi e classificazione dei principali disturbi. Neurologia 2011. [DOI: 10.1016/s1634-7072(11)70696-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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48
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Chabeauti PY, Vaugoyeau M, Assaiante C. Is vertical postural orientation in weightlessness correlated with the subjects' perceptual typology? Gait Posture 2010; 32:586-91. [PMID: 20833048 DOI: 10.1016/j.gaitpost.2010.08.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2009] [Revised: 07/27/2010] [Accepted: 08/10/2010] [Indexed: 02/02/2023]
Abstract
It was proposed to investigate whether the central nervous system is able to select the most appropriate reference frame for controlling subjects' vertical orientation in response to severe environmental constraints such as microgravity and support perturbations. The question addressed was whether the subjects, regardless of their perceptual typology, might be able to use the same visual reference frame to control their vertical orientation. Fifteen subjects were asked to perform a sit-to-stand (STS) task under microgravity. Subjects were seated on a chair with their feet fixed to a horizontal or forwards tilted support (20°). When the support was tilted the subjects' ankles were placed at an angle of 110°. Two main findings emerged from this study. First, in all the experimental conditions, the results obtained showed that the subjects' controlled their postural orientation fairly correctly but not very precisely, since a bias was systematically observed in their head and trunk orientation. In other words, changes in their ankle angles and the absence of gravity only slightly disturbed their vertical body orientation, and when these two constraints were applied concomitantly, their effects were not cumulative. Secondly, contrary to our initial hypothesis, the subjects' postural orientation performances were not correlated with the perceptual typology. All the subjects preferentially used the visual reference frame to control their vertical postural orientation. The present findings confirm that the proprioceptive dominance of visual independent (VI) subjects enhances their ability to select the most appropriate reference frame to deal with inter-sensory disturbances such as those consisting here of microgravity combined with proprioceptive perturbations imposed at ankle level.
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Affiliation(s)
- Pierre-Yves Chabeauti
- Université de Provence & CNRS, Laboratoire Neurosciences Intégratives & Adaptatives (UMR 6149), Equipe DPA, Pôle 3C - Centre St Charles - Case B, 3 Place Victor Hugo, 13331 Marseille Cedex 03, France
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49
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Olivier I, Cuisinier R, Vaugoyeau M, Nougier V, Assaiante C. Age-related differences in cognitive and postural dual-task performance. Gait Posture 2010; 32:494-9. [PMID: 20692161 DOI: 10.1016/j.gaitpost.2010.07.008] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2009] [Revised: 03/04/2010] [Accepted: 07/12/2010] [Indexed: 02/02/2023]
Abstract
The present experiment assessed, in children aged 7-11 and in adults, whether postural control is affected by cognitive processes and vice versa. Using a dual-task, the level of difficulty of a Stroop task and bipedal quiet stance varied alternatively. We hypothesised that the interference between cognitive and postural tasks was non-linear during childhood with a so-called turning point around 8. Twenty-seven children 7- to 11-years-old and nine adults participated in the experiments. The postural task was executed in a semi-tandem Romberg position. Two cognitive conditions (congruent and non-congruent Stroop conditions) and two postural situations (with and without perturbed proprioceptive inputs) were presented simultaneously with the instruction to respond as correctly as possible while remaining as stable as possible. Results showed that, in the Vib condition, CoP mean velocity decreased with the increased cognitive complexity only in children aged 7. Moreover, the data showed a non-linear decrease in postural sway during childhood, whatever the level of complexity of the cognitive and/or postural tasks. CoP mean amplitude and mean velocity decreased between 7 and 8, and again between age 11 and adults. This study (1) confirmed that the interference between mental activity and postural control can be attributed mainly to attentional limitations, (2) showed the existence of a turning point around 8 in the development of this capacity, and (3) suggested that the mature level of attentional resources was not reached until age 11. Further research is needed to assess the development of attention implied in a cognitive/postural dual-task, including probably another so-called turning point during the adolescence.
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Affiliation(s)
- Isabelle Olivier
- Laboratoire TIMC-IMAG, UMR 5525 CNRS-UJF - Equipe Santé, Plasticité, Motricité, Faculté de Médecine, 38706 La Tronche cedex, France.
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50
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Mallau S, Vaugoyeau M, Assaiante C. Postural strategies and sensory integration: no turning point between childhood and adolescence. PLoS One 2010; 5:e13078. [PMID: 20927328 PMCID: PMC2947520 DOI: 10.1371/journal.pone.0013078] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Accepted: 07/29/2010] [Indexed: 12/02/2022] Open
Abstract
In this study, we investigated the sensory integration to postural control in children and adolescents from 5 to 15 years of age. We adopted the working hypothesis that considerable body changes occurring during these periods may lead subjects to under-use the information provided by the proprioceptive pathway and over-use other sensory systems such as vision to control their orientation and stabilize their body. It was proposed to determine which maturational differences may exist between the sensory integration used by children and adolescents in order to test the hypothesis that adolescence may constitute a specific phase in the development of postural control. This hypothesis was tested by applying an original protocol of slow oscillations below the detection threshold of the vestibular canal system, which mainly serves to mediate proprioceptive information, to the platform on which the subjects were standing. We highlighted the process of acquiring an accurate sensory and anatomical reference frame for functional movement. We asked children and adolescents to maintain a vertical stance while slow sinusoidal oscillations in the frontal plane were applied to the support at 0.01 Hz (below the detection threshold of the semicircular canal system) and at 0.06 Hz (above the detection threshold of the semicircular canal system) with their eyes either open or closed. This developmental study provided evidence that there are mild differences in the quality of sensory integration relative to postural control in children and adolescents. The results reported here confirmed the predominance of vision and the gradual mastery of somatosensory integration in postural control during a large period of ontogenesis including childhood and adolescence. The youngest as well as the oldest subjects adopted similar qualitative damping and segmental stabilization strategies that gradually improved with age without reaching an adult's level. Lastly, sensory reweighting for postural strategies as assessed by very slow support oscillations presents a linear development without any qualitative turning point between childhood and adolescence.
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Affiliation(s)
- Sophie Mallau
- Groupe DPA, Pôle 3C - UMR 6149, Université de Provence & CNRS, Marseille, France
| | - Marianne Vaugoyeau
- Groupe DPA, Pôle 3C - UMR 6149, Université de Provence & CNRS, Marseille, France
| | - Christine Assaiante
- Groupe DPA, Pôle 3C - UMR 6149, Université de Provence & CNRS, Marseille, France
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