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Grecucci A, Rastelli C, Bacci F, Melcher D, De Pisapia N. A Supervised Machine Learning Approach to Classify Brain Morphology of Professional Visual Artists versus Non-Artists. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23094199. [PMID: 37177406 PMCID: PMC10181039 DOI: 10.3390/s23094199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/14/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023]
Abstract
This study aimed to investigate whether there are structural differences in the brains of professional artists who received formal training in the visual arts and non-artists who did not have any formal training or professional experience in the visual arts, and whether these differences can be used to accurately classify individuals as being an artist or not. Previous research using functional MRI has suggested that general creativity involves a balance between the default mode network and the executive control network. However, it is not known whether there are structural differences between the brains of artists and non-artists. In this study, a machine learning method called Multi-Kernel Learning (MKL) was applied to gray matter images of 12 artists and 12 non-artists matched for age and gender. The results showed that the predictive model was able to correctly classify artists from non-artists with an accuracy of 79.17% (AUC 88%), and had the ability to predict new cases with an accuracy of 81.82%. The brain regions most important for this classification were the Heschl area, amygdala, cingulate, thalamus, and parts of the parietal and occipital lobes as well as the temporal pole. These regions may be related to the enhanced emotional and visuospatial abilities that professional artists possess compared to non-artists. Additionally, the reliability of this circuit was assessed using two different classifiers, which confirmed the findings. There was also a trend towards significance between the circuit and a measure of vividness of imagery, further supporting the idea that these brain regions may be related to the imagery abilities involved in the artistic process.
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Affiliation(s)
- Alessandro Grecucci
- Department of Psychology and Cognitive Sciences of Trento, University of Trento, 38068 Rovereto, Italy
| | - Clara Rastelli
- Department of Psychology and Cognitive Sciences of Trento, University of Trento, 38068 Rovereto, Italy
- MEG Center, University of Tübingen, 72072 Tübingen, Germany
| | - Francesca Bacci
- College of Arts and Creative Enterprises, Zayed University, Abu Dhabi P.O. Box 144534, United Arab Emirates
| | - David Melcher
- Department of Psychology and Cognitive Sciences of Trento, University of Trento, 38068 Rovereto, Italy
- Division of Science, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates
| | - Nicola De Pisapia
- Department of Psychology and Cognitive Sciences of Trento, University of Trento, 38068 Rovereto, Italy
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Khademi F, Naros G, Nicksirat A, Kraus D, Gharabaghi A. Rewiring Cortico-Muscular Control in the Healthy and Poststroke Human Brain with Proprioceptive β-Band Neurofeedback. J Neurosci 2022; 42:6861-6877. [PMID: 35940874 PMCID: PMC9463986 DOI: 10.1523/jneurosci.1530-20.2022] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 06/02/2022] [Accepted: 06/04/2022] [Indexed: 11/21/2022] Open
Abstract
In severely affected stroke survivors, cortico-muscular control is disturbed and volitional upper limb movements often absent. Mental rehearsal of the impaired movement in conjunction with sensory feedback provision are suggested as promising rehabilitation exercises. Knowledge about the underlying neural processes, however, remains vague. In male and female chronic stroke patients with hand paralysis, a brain-computer interface controlled a robotic orthosis and turned sensorimotor β-band desynchronization during motor imagery (MI) of finger extension into contingent hand opening. Healthy control subjects performed the same task and received the same proprioceptive feedback with a robotic orthosis or visual feedback only. Only when proprioceptive feedback was provided, cortico-muscular coherence (CMC) increased with a predominant information flow from the sensorimotor cortex to the finger extensors. This effect (1) was specific to the β frequency band, (2) transferred to a motor task (MT), (3) was proportional to subsequent corticospinal excitability (CSE) and correlated with behavioral changes in the (4) healthy and (5) poststroke condition; notably, MI-related enhancement of β-band CMC in the ipsilesional premotor cortex correlated with motor improvements after the intervention. In the healthy and injured human nervous system, synchronized activation of motor-related cortical and spinal neural pools facilitates, in accordance with the communication-through-coherence hypothesis, cortico-spinal communication and may, thereby, be therapeutically relevant for functional restoration after stroke, when voluntary movements are no longer possible.SIGNIFICANCE STATEMENT This study provides insights into the neural processes that transfer effects of brain-computer interface neurofeedback to subsequent motor behavior. Specifically, volitional control of cortical oscillations and proprioceptive feedback enhances both cortical activity and behaviorally relevant connectivity to the periphery in a topographically circumscribed and frequency-specific way. This enhanced cortico-muscular control can be induced in the healthy and poststroke brain. Thereby, activating the motor cortex with mental rehearsal of the impaired movement and closing the loop by robot-assisted feedback synchronizes ipsilesional premotor cortex and spinal neural pools in the β frequency band. This facilitates, in accordance with the communication-through-coherence hypothesis, cortico-spinal communication and may, thereby, be therapeutically relevant for functional restoration after stroke, when voluntary movements are no longer possible.
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Affiliation(s)
- Fatemeh Khademi
- Institute for Neuromodulation and Neurotechnology, University Hospital and University of Tübingen, Tübingen 72076, Germany
| | - Georgios Naros
- Institute for Neuromodulation and Neurotechnology, University Hospital and University of Tübingen, Tübingen 72076, Germany
| | - Ali Nicksirat
- Institute for Neuromodulation and Neurotechnology, University Hospital and University of Tübingen, Tübingen 72076, Germany
| | - Dominic Kraus
- Institute for Neuromodulation and Neurotechnology, University Hospital and University of Tübingen, Tübingen 72076, Germany
| | - Alireza Gharabaghi
- Institute for Neuromodulation and Neurotechnology, University Hospital and University of Tübingen, Tübingen 72076, Germany
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Sisti HM, Beebe A, Bishop M, Gabrielsson E. A brief review of motor imagery and bimanual coordination. Front Hum Neurosci 2022; 16:1037410. [PMID: 36438642 PMCID: PMC9693758 DOI: 10.3389/fnhum.2022.1037410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/18/2022] [Indexed: 11/13/2022] Open
Abstract
Motor imagery is increasingly being used in clinical settings, such as in neurorehabilitation and brain computer interface (BCI). In stroke, patients lose upper limb function and must re-learn bimanual coordination skills necessary for the activities of daily living. Physiotherapists integrate motor imagery with physical rehabilitation to accelerate recovery. In BCIs, users are often asked to imagine a movement, often with sparse instructions. The EEG pattern that coincides with this cognitive task is captured, then used to execute an external command, such as operating a neuroprosthetic device. As such, BCIs are dependent on the efficient and reliable interpretation of motor imagery. While motor imagery improves patient outcome and informs BCI research, the cognitive and neurophysiological mechanisms which underlie it are not clear. Certain types of motor imagery techniques are more effective than others. For instance, focusing on kinesthetic cues and adopting a first-person perspective are more effective than focusing on visual cues and adopting a third-person perspective. As motor imagery becomes more dominant in neurorehabilitation and BCIs, it is important to elucidate what makes these techniques effective. The purpose of this review is to examine the research to date that focuses on both motor imagery and bimanual coordination. An assessment of current research on these two themes may serve as a useful platform for scientists and clinicians seeking to use motor imagery to help improve bimanual coordination, either through augmenting physical therapy or developing more effective BCIs.
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Affiliation(s)
- Helene M Sisti
- Department of Psychology, Norwich University, Northfield, VT, United States
| | - Annika Beebe
- Department of Psychology, Norwich University, Northfield, VT, United States
| | - Mercedes Bishop
- Department of Psychology, Norwich University, Northfield, VT, United States
| | - Elias Gabrielsson
- Department of Psychology, Norwich University, Northfield, VT, United States
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Lee D, Son T. Structural connectivity differs between males and females in the brain object manipulation network. PLoS One 2021; 16:e0253273. [PMID: 34115811 PMCID: PMC8195422 DOI: 10.1371/journal.pone.0253273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 06/01/2021] [Indexed: 11/24/2022] Open
Abstract
Object control skills are one of the most important abilities in daily life. Knowledge of object manipulation is an essential factor in improving object control skills. Although males and females equally try to use object manipulation knowledge, their object control abilities often differ. To explain this difference, we investigated how structural brain networks in males and females are differentially organized in the tool-preferring areas of the object manipulation network. The structural connectivity between the primary motor and premotor regions and between the inferior parietal regions in males was significantly higher than that in females. However, females showed greater structural connectivity in various regions of the object manipulation network, including the paracentral lobule, inferior parietal regions, superior parietal cortices, MT+ complex and neighboring visual areas, and dorsal stream visual cortex. The global node strength found in the female parietal network was significantly higher than that in males but not for the entire object manipulation, ventral temporal, and motor networks. These findings indicated that the parietal network in females has greater inter-regional structural connectivity to retrieve manipulation knowledge than that in males. This study suggests that differential structural networks in males and females might influence object manipulation knowledge retrieval.
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Affiliation(s)
- Dongha Lee
- Cognitive Science Research Group, Korea Brain Research Institute, Daegu, Republic of Korea
- * E-mail:
| | - Taekwon Son
- Korea Brain Bank, Korea Brain Research Institute, Daegu, Republic of Korea
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Wood MD, Simmatis LER, Jacobson JA, Dukelow SP, Boyd JG, Scott SH. Principal Components Analysis Using Data Collected From Healthy Individuals on Two Robotic Assessment Platforms Yields Similar Behavioral Patterns. Front Hum Neurosci 2021; 15:652201. [PMID: 34025375 PMCID: PMC8134538 DOI: 10.3389/fnhum.2021.652201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 04/06/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Kinarm Standard Tests (KSTs) is a suite of upper limb tasks to assess sensory, motor, and cognitive functions, which produces granular performance data that reflect spatial and temporal aspects of behavior (>100 variables per individual). We have previously used principal component analysis (PCA) to reduce the dimensionality of multivariate data using the Kinarm End-Point Lab (EP). Here, we performed PCA using data from the Kinarm Exoskeleton Lab (EXO), and determined agreement of PCA results across EP and EXO platforms in healthy participants. We additionally examined whether further dimensionality reduction was possible by using PCA across behavioral tasks. METHODS Healthy participants were assessed using the Kinarm EXO (N = 469) and EP (N = 170-200). Four behavioral tasks (six assessments in total) were performed that quantified arm sensory and motor function, including position sense [Arm Position Matching (APM)] and three motor tasks [Visually Guided Reaching (VGR), Object Hit (OH), and Object Hit and Avoid (OHA)]. The number of components to include per task was determined from scree plots and parallel analysis, and rotation type (orthogonal vs. oblique) was decided on a per-task basis. To assess agreement, we compared principal components (PCs) across platforms using distance correlation. We additionally considered inter-task interactions in EXO data by performing PCA across all six behavioral assessments. RESULTS By applying PCA on a per task basis to data collected using the EXO, the number of behavioral parameters were substantially reduced by 58-75% while accounting for 76-87% of the variance. These results compared well to the EP analysis, and we found good-to-excellent agreement values (0.75-0.99) between PCs from the EXO and those from the EP. Finally, we were able to reduce the dimensionality of the EXO data across tasks down to 16 components out of a total of 76 behavioral parameters, which represents a reduction of 79% while accounting for 73% of the total variance. CONCLUSION PCA of Kinarm robotic assessment appears to capture similar relationships between kinematic features in healthy individuals and is agnostic to the robotic platform used for collection. Further work is needed to investigate the use of PCA-based data reduction for the characterization of neurological deficits in clinical populations.
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Affiliation(s)
- Michael D. Wood
- Department of Anesthesiology, Pharmacology & Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - Leif E. R. Simmatis
- Toronto Rehabilitation Institute, University Health Network, Toronto, ON, Canada
| | - Jill A. Jacobson
- Department of Psychology, Queen’s University, Kingston, ON, Canada
| | - Sean P. Dukelow
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - J. Gordon Boyd
- Centre for Neuroscience Studies, Queen’s University, Kingston, ON, Canada
- Department of Medicine, Queen’s University, Kingston, ON, Canada
- Department of Critical Care Medicine, Queen’s University, Kingston, ON, Canada
| | - Stephen H. Scott
- Centre for Neuroscience Studies, Queen’s University, Kingston, ON, Canada
- Department of Medicine, Queen’s University, Kingston, ON, Canada
- Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON, Canada
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Methylphenidate decreases the EEG mu power in the right primary motor cortex in healthy adults during motor imagery and execution. Brain Struct Funct 2021; 226:1185-1193. [PMID: 33598759 DOI: 10.1007/s00429-021-02233-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 01/28/2021] [Indexed: 10/22/2022]
Abstract
This study investigated the effects of dopaminergic drugs on the EEG mu power during motor imagery, action observation, and execution. This is a double-blind, crossover study with a sample of 15 healthy adults under placebo vs. methylphenidate vs. risperidone conditions during motor imagery, action observation, and execution tasks. The participants had drug dosage adjustment based on body weight/dose (mg/kg). We also analyzed the mu band power by electroencephalography during the study steps. The main result is the interaction between the condition and task factors for the C3 and C4 electrodes, with decreasing EEG mu power in the methylphenidate when compared to risperidone (p ≤ 0.0083). Our results can indicate that the methylphenidate decreases the neurophysiological activity in the central cortical regions during the perceptual experience of tasks with or without body movement.
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Burns MK, Stika J, Patel V, Pei D, Nataraj R, Vinjamuri R. Lateralization and Model Transference in a Bilateral Cursor Task .. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2020; 2020:3240-3243. [PMID: 33018695 DOI: 10.1109/embc44109.2020.9176496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Post-stroke rehabilitation, occupational and physical therapy, and training for use of assistive prosthetics leverages our current understanding of bilateral motor control to better train individuals. In this study, we examine upper limb lateralization and model transference using a bimanual joystick cursor task with orthogonal controls. Two groups of healthy subjects are recruited into a 2-session study spaced seven days apart. One group uses their left and right hands to control cursor position and rotation respectively, while the other uses their right and left hands. The groups switch control methods in the second session, and a rotational perturbation is applied to the positional controls in the latter half of each session. We find agreement with current lateralization theories when comparing robustness to feedforward perturbations in feedback and feedforward measures. We find no evidence of a transferable model after seven days, and evidence that the brain does not synchronize task completion between the hands.
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Courson M, Tremblay P. Neural correlates of manual action language: Comparative review, ALE meta-analysis and ROI meta-analysis. Neurosci Biobehav Rev 2020; 116:221-238. [DOI: 10.1016/j.neubiorev.2020.06.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 03/30/2020] [Accepted: 06/18/2020] [Indexed: 10/24/2022]
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da Silva RL, Santos FF, Mendes IMG, Caromano FA, Higgins J, Frak V. Contributions of the Left and the Right Hemispheres on Language-Induced Grip Force Modulation of the Left Hand in Unimanual Tasks. ACTA ACUST UNITED AC 2019; 55:medicina55100674. [PMID: 31590447 PMCID: PMC6843471 DOI: 10.3390/medicina55100674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/30/2019] [Accepted: 10/03/2019] [Indexed: 11/16/2022]
Abstract
Background and Objectives: Language-induced grip force modulation (LGFM) can be used to better understand the link between language and motor functions as an expression of embodied language. However, the contribution of each brain hemisphere to LGFM is still unclear. Using six different action verbs as stimuli, this study evaluated the grip force modulation of the left hand in a unimanual task to characterize the left and right hemispheres' contributions. Materials and Methods: Left-hand LGFM of 20 healthy and consistently right-handed subjects was evaluated using the verbs "to write", "to hold", "to pull" (left-lateralized central processing actions), "to draw", "to tie", and "to drive" (bihemispheric central processing actions) as linguistic stimuli. The time between the word onset and the first interval of statistical significance regarding the baseline (here as reaction time, RT) was also measured. Results: The six verbs produced LGFM. The modulation intensity was similar for the six verbs, but the RT was variable. The verbs "to draw", "to tie", and "to drive", whose central processing of the described action is bihemispheric, showed a longer RT compared to the other verbs. Conclusions: The possibility of a given manual action being performed by the left hand in consistent right-handers does not interfere with the occurrence of LGFM when the descriptor verb of this action is used as a linguistic stimulus, even if the possibility is remote. Therefore, LGFM seems to mainly rely on the left hemisphere, while a greater activation of the right hemisphere in action processing appears to slow the increase in LGFM intensity.
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Affiliation(s)
- Ronaldo Luis da Silva
- Faculté des Sciences, Université du Québec à Montréal - 141 Avenue du Président-Kennedy, Montréal, QC H2X 1Y4, Canada.
- Centre de recherche interdisciplinaire en réadaptation (CRIR), Institut universitaire sur la réadaptation en déficience physique de Montréal (IURDPM) - 6300 Avenue de Darlington, Montréal, QC H3S 2J4, Canada.
| | - Francielly Ferreira Santos
- Centro Estadual de Reabilitação e de Readaptação Dr Henrique Santillo - CRER - Av. Ver. José Monteiro, 1655 - Setor Negrão de Lima, Goiânia, GO 74653-230, Brazil.
| | - Isabella Maria Gonçalves Mendes
- Centro Estadual de Reabilitação e de Readaptação Dr Henrique Santillo - CRER - Av. Ver. José Monteiro, 1655 - Setor Negrão de Lima, Goiânia, GO 74653-230, Brazil.
| | - Fátima Aparecida Caromano
- Laboratory of Physical Therapy and Behaviour, Department of Physical Therapy, Speech and Occupational Therapy, University of São Paulo Medical School - Rua Cipotânea, 51 - Cidade Universitária, São Paulo, SP 05360-000, Brazil.
| | - Johanne Higgins
- Centre de recherche interdisciplinaire en réadaptation (CRIR), Institut universitaire sur la réadaptation en déficience physique de Montréal (IURDPM) - 6300 Avenue de Darlington, Montréal, QC H3S 2J4, Canada.
- École de Réadaptation, Faculté de Médecine, Université de Montréal - 7077 Avenue du Parc, Montréal, QC H3N, Canada.
| | - Victor Frak
- Faculté des Sciences, Université du Québec à Montréal - 141 Avenue du Président-Kennedy, Montréal, QC H2X 1Y4, Canada.
- Centre de recherche interdisciplinaire en réadaptation (CRIR), Institut universitaire sur la réadaptation en déficience physique de Montréal (IURDPM) - 6300 Avenue de Darlington, Montréal, QC H3S 2J4, Canada.
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Al-Wasity SMH, Pollick F, Sosnowska A, Vuckovic A. Cortical Functional Domains Show Distinctive Oscillatory Dynamic in Bimanual and Mirror Visual Feedback Tasks. Front Comput Neurosci 2019; 13:30. [PMID: 31143108 PMCID: PMC6521734 DOI: 10.3389/fncom.2019.00030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 04/24/2019] [Indexed: 11/13/2022] Open
Abstract
It is believed that Mirror Visual Feedback (MVF) increases the interlimb transfer but the exact mechanism is still a matter of debate. The aim of this study was to compare between a bimanual task (BM) and a MVF task, within functionally rather than geometrically defined cortical domains. Measure Projection Analysis (MPA) approach was applied to compare the dynamic oscillatory activity (event-related synchronization/desynchronization ERS/ERD) between and within domains. EEG was recorded in 14 healthy participants performing a BM and an MVF task with the right hand. The MPA was applied on fitted equivalent current dipoles based on independent components to define domains containing functionally similar areas. The measure of intradomain similarity was a "signed mutual information," a parameter based on the coherence. Domain analysis was performed for joint tasks (BM and MVF) and for each task separately. MVF created 9 functional domains while MB task had only 4 functionally distinctive domains, two over the left hemispheres and two bilateraly. For all domains identified for BM task alone, similar domains could be identified in MVF and joint tasks analysis. In addition MVF had domains related to motor planning on the right hemisphere and to self-recognition of action. For joint tasks analysis, seven domains were identified, with similar functions for the left and the right hand with exception of a domain covering BA32 (self-recognition of action) of the left hand only. In joint task domain analysis, the ERD/ERS showed a larger difference between domains than between tasks. All domains which involved the sensory cortex had a visible beta ERS at the onset of movement, and post movement beta ERS. The frequency of ERD varied between domains. Largest difference between tasks existed in domains responsible for the awareness of action. In conclusion, functionally distinctive domains have different ERD/ERS patterns, similar for both tasks. MVF activates contralateral hemisphere in similar manner to BM movements, while at the same time also activating the ipsilateral hemisphere. Significance: Following stroke cortical activation and interhemispheric inhibition from the contralesional side is reduced. MVF creates stronger ipsilateral activity than BM, which is highly relevant of neurorehabilitation of movements.
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Affiliation(s)
- Salim M H Al-Wasity
- Rehabiliation Engineering Lab, Biomedical Engineering Research Division, University of Glasgow, Glasgow, United Kingdom.,Department of Computer Science, University of Wasit, Kut, Iraq
| | - Frank Pollick
- School of Psychology, University of Glasgow, Glasgow, United Kingdom
| | - Anna Sosnowska
- Rehabiliation Engineering Lab, Biomedical Engineering Research Division, University of Glasgow, Glasgow, United Kingdom
| | - Aleksandra Vuckovic
- Rehabiliation Engineering Lab, Biomedical Engineering Research Division, University of Glasgow, Glasgow, United Kingdom
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Lee D, Jang C, Park HJ. Neurofeedback learning for mental practice rather than repetitive practice improves neural pattern consistency and functional network efficiency in the subsequent mental motor execution. Neuroimage 2018; 188:680-693. [PMID: 30599191 DOI: 10.1016/j.neuroimage.2018.12.055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 12/20/2018] [Accepted: 12/27/2018] [Indexed: 10/27/2022] Open
Abstract
During brain modulation, repeated mental practice may not always result in efficient learning. Particularly, the effectiveness of mental motor practice depends on how well one induces neural activity in a desired state consistently across mental trials, which calls for feedbacks to adjust one's performance. We hypothesized that even a brief experience of neurofeedback learning enhances trial-by-trial neural pattern consistency during subsequent mental motor execution and that this experience would change recruitment of functional connectivity in the motor imagery and default mode networks. To test this hypothesis, we conducted an experiment with two sessions of mental motor practice before and after a neurofeedback training session, in which participants conducted four types of first-person mental motor execution tasks (walking forward, turning left, turning right, and touching a tree). During the neurofeedback training session, in which participants conducted a virtual navigation game, 10 experimental participants received real-time fMRI neuro-feedbacks, while 10 control participants simply repeated the same mental task according to given cues without feedbacks. The experimental group showed significantly higher effects of neuro-feedback training on trial-by-trial consistencies and classification accuracies of activated neural patterns than the control group. Task-performing global node strength and network efficiency were increased in the motor imagery network but decreased in the default mode network only in the experimental group. These results demonstrate that even a brief experience of feedback learning is more effective than simple practice repetitions without evaluation, which was reflected in increased neural pattern consistency and task-dependent functional connectivity during a mental motor execution task.
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Affiliation(s)
- Dongha Lee
- Faculty of Psychology and Education Sciences, University of Coimbra, Coimbra, Portugal; Center for Systems and Translational Brain Sciences, Institute of Human Complexity and Systems Science, Yonsei University, Seoul, Republic of Korea
| | - Changwon Jang
- BK21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hae-Jeong Park
- Center for Systems and Translational Brain Sciences, Institute of Human Complexity and Systems Science, Yonsei University, Seoul, Republic of Korea; BK21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea; Department of Nuclear Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea; Department of Cognitive Science, Yonsei University, Seoul, Republic of Korea.
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Vuckovic A, Pangaro S, Finda P. Unimanual Versus Bimanual Motor Imagery Classifiers for Assistive and Rehabilitative Brain Computer Interfaces. IEEE Trans Neural Syst Rehabil Eng 2018; 26:2407-2415. [DOI: 10.1109/tnsre.2018.2877620] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Fink A, Bay JU, Koschutnig K, Prettenthaler K, Rominger C, Benedek M, Papousek I, Weiss EM, Seidel A, Memmert D. Brain and soccer: Functional patterns of brain activity during the generation of creative moves in real soccer decision-making situations. Hum Brain Mapp 2018; 40:755-764. [PMID: 30259600 PMCID: PMC6492000 DOI: 10.1002/hbm.24408] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 08/31/2018] [Accepted: 09/17/2018] [Indexed: 12/14/2022] Open
Abstract
This fMRI study investigated brain activity while soccer players were imagining creative moves in real soccer decision-making situations. After presenting brief video clips of a soccer scene, participants had to imagine themselves as the acting player and think either of a creative or obvious move that might lead to a goal. Findings revealed stronger activation during trials in which the generation of obvious moves was required, relative to trials requiring creative moves. The reversed contrast (creative > obvious) showed no significant effects. Activations were mainly left-lateralized, primarily involving the cuneus, middle temporal gyrus, and the rolandic operculum, which are known to support the processing of multimodal input from different sensory, motor and perceptual sources. Interestingly, more creative solutions in the soccer task were associated with smaller contrast values for the activation difference between obvious and creative trials, or even with more activation in the latter. Furthermore, higher trait creative potential (as assessed by a figural creativity test) was associated with stronger activation differences between both conditions. These findings suggest that with increasing soccer-specific creative task performance, the processing of the manifold information provided by the soccer scenario becomes increasingly important, while in individuals with higher trait creative potential these processes were recruited to a minor degree. This study showed that soccer-specific creativity tasks modulate activation levels in a network of regions supporting various cognitive functions such as semantic information processing, visual and motor imagery, and the processing and integration of sensorimotor and somatosensory information.
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Affiliation(s)
- Andreas Fink
- Institute of Psychology, University of Graz, Graz, Austria
| | - Jürgen U Bay
- Institute of Psychology, University of Graz, Graz, Austria
| | | | | | | | | | - Ilona Papousek
- Institute of Psychology, University of Graz, Graz, Austria
| | | | - Anna Seidel
- Institute of Exercise Training and Sport Informatics, German Sport University Cologne, Cologne, Germany
| | - Daniel Memmert
- Institute of Exercise Training and Sport Informatics, German Sport University Cologne, Cologne, Germany
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Mooshagian E, Wang C, Holmes CD, Snyder LH. Single Units in the Posterior Parietal Cortex Encode Patterns of Bimanual Coordination. Cereb Cortex 2018; 28:1549-1567. [PMID: 28369392 PMCID: PMC5907348 DOI: 10.1093/cercor/bhx052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/07/2017] [Accepted: 02/10/2017] [Indexed: 11/12/2022] Open
Abstract
Bimanual coordination is critical for a broad array of behaviors. Drummers, for example, must carefully coordinate movements of their 2 arms, sometimes beating on the same drum and sometimes on different ones. While coordinated behavior is well-studied, the early stages of planning are not well understood. In the parietal reach region (PRR) of the posterior parietal cortex (PPC), the presence of neurons that modulate when either arm moves by itself has been taken as evidence for a role in bimanual coordination. To test this notion, we recorded neurons during both unilateral and bimanual movements. We find that the activity that precedes an ipsilateral arm movement is primarily a sensory response to a target in the neuron's visual receptive field and not a plan to move the ipsilateral arm. In contrast, the activity that precedes a contralateral arm movement is the sum of a movement plan plus a sensory response. Despite not coding ipsilateral arm movements, about half of neurons discriminate between different patterns of bimanual movements. These results provide direct evidence that PRR neurons represent bimanual reach plans, and suggest that bimanual coordination originates in the sensory-to-motor processing stream prior to the motor cortex, within the PPC.
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Affiliation(s)
- Eric Mooshagian
- Department of Neuroscience, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Cunguo Wang
- Department of Neuroscience, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Charles D Holmes
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Lawrence H Snyder
- Department of Neuroscience, Washington University School of Medicine, St. Louis, MO 63110, USA
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
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15
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Saiote C, Tacchino A, Brichetto G, Roccatagliata L, Bommarito G, Cordano C, Battaglia M, Mancardi GL, Inglese M. Resting-state functional connectivity and motor imagery brain activation. Hum Brain Mapp 2018; 37:3847-3857. [PMID: 27273577 DOI: 10.1002/hbm.23280] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 05/01/2016] [Accepted: 05/24/2016] [Indexed: 12/21/2022] Open
Abstract
Motor imagery (MI) relies on the mental simulation of an action without any overt motor execution (ME), and can facilitate motor learning and enhance the effect of rehabilitation in patients with neurological conditions. While functional magnetic resonance imaging (fMRI) during MI and ME reveals shared cortical representations, the role and functional relevance of the resting-state functional connectivity (RSFC) of brain regions involved in MI is yet unknown. Here, we performed resting-state fMRI followed by fMRI during ME and MI with the dominant hand. We used a behavioral chronometry test to measure ME and MI movement duration and compute an index of performance (IP). Then, we analyzed the voxel-matched correlation between the individual MI parameter estimates and seed-based RSFC maps in the MI network to measure the correspondence between RSFC and MI fMRI activation. We found that inter-individual differences in intrinsic connectivity in the MI network predicted several clusters of activation. Taken together, present findings provide first evidence that RSFC within the MI network is predictive of the activation of MI brain regions, including those associated with behavioral performance, thus suggesting a role for RSFC in obtaining a deeper understanding of neural substrates of MI and of MI ability. Hum Brain Mapp 37:3847-3857, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Catarina Saiote
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York
| | - Andrea Tacchino
- Scientific Research Area, Italian MS Foundation (FISM), Genoa, Italy
| | | | - Luca Roccatagliata
- Department of Health Sciences (DISSAL), and Neuroradiology Department, IRCCS San Martino University Hospital and IST, Genoa, Italy
| | - Giulia Bommarito
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Christian Cordano
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Mario Battaglia
- Scientific Research Area, Italian MS Foundation (FISM), Genoa, Italy.,Department of Physiopathology, Experimental Medicine and Public Health, University of Siena, Siena, Italy
| | - Giovanni Luigi Mancardi
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Matilde Inglese
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York. .,Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy. .,Department of Radiology, Icahn School of Medicine at Mount Sinai, New York. .,Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York.
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16
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Courson M, Macoir J, Tremblay P. Role of medial premotor areas in action language processing in relation to motor skills. Cortex 2017; 95:77-91. [PMID: 28858609 DOI: 10.1016/j.cortex.2017.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 05/04/2017] [Accepted: 08/02/2017] [Indexed: 10/19/2022]
Abstract
The literature reports that the supplementary motor area (SMA) and pre-supplementary motor area (pre-SMA) are involved in motor planning and execution, and in motor-related cognitive functions such as motor imagery. However, their specific role in action language processing remains unclear. In the present study, we investigated the impact of repetitive transcranial magnetic stimulation (rTMS) over SMA and pre-SMA during an action semantic analogy task (SAT) in relation with fine motor skills (i.e., manual dexterity) and motor imagery abilities in healthy non-expert adults. The impact of rTMS over SMA (but not pre-SMA) on reaction times (RT) during SAT was correlated with manual dexterity. Specifically, results show that rTMS over SMA modulated RT for those with lower dexterity skills. Our results therefore demonstrate a causal involvement of SMA in action language processing, as well as the existence of inter-individual differences in this involvement. We discuss these findings in light of neurolinguistic theories of language processing.
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Affiliation(s)
- Melody Courson
- Département de Réadaptation, Université Laval, CERVO Brain Research Center, Québec, Qc., Canada
| | - Joël Macoir
- Département de Réadaptation, Université Laval, CERVO Brain Research Center, Québec, Qc., Canada
| | - Pascale Tremblay
- Département de Réadaptation, Université Laval, CERVO Brain Research Center, Québec, Qc., Canada.
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Kilintari M, Narayana S, Babajani-Feremi A, Rezaie R, Papanicolaou AC. Brain activation profiles during kinesthetic and visual imagery: An fMRI study. Brain Res 2016; 1646:249-261. [DOI: 10.1016/j.brainres.2016.06.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 05/09/2016] [Accepted: 06/07/2016] [Indexed: 01/25/2023]
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18
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Findlater SE, Desai JA, Semrau JA, Kenzie JM, Rorden C, Herter TM, Scott SH, Dukelow SP. Central perception of position sense involves a distributed neural network - Evidence from lesion-behavior analyses. Cortex 2016; 79:42-56. [PMID: 27085894 DOI: 10.1016/j.cortex.2016.03.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 11/02/2015] [Accepted: 03/08/2016] [Indexed: 11/19/2022]
Abstract
It is well established that proprioceptive inputs from the periphery are important for the constant update of arm position for perception and guiding motor action. The degree to which we are consciously aware of the position of our limb depends on the task. Our understanding of the central processing of position sense is rather limited, largely based on findings in animals and individual human case studies. The present study used statistical lesion-behavior analysis and an arm position matching task to investigate position sense in a large sample of subjects after acute stroke. We excluded subjects who performed abnormally on clinical testing or a robotic visually guided reaching task with their matching arm in order to minimize the potential confound of ipsilesional impairment. Our findings revealed that a number of regions are important for processing position sense and include the posterior parietal cortex, the transverse temporal gyrus, and the arcuate fasciculus. Further, our results revealed that position sense has dissociable components - spatial variability, perceived workspace area, and perceived workspace location. Each component is associated with unique neuroanatomical correlates. These findings extend the current understanding of the neural processing of position sense and identify some brain areas that are not classically associated with proprioception.
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Affiliation(s)
- Sonja E Findlater
- Division of Physical Medicine and Rehabilitation, Department of Clinical Neurosciences, Hotchkiss Brain Institute, Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada
| | - Jamsheed A Desai
- Calgary Stroke Program, Department of Clinical Neurosciences, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Jennifer A Semrau
- Division of Physical Medicine and Rehabilitation, Department of Clinical Neurosciences, Hotchkiss Brain Institute, Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada
| | - Jeffrey M Kenzie
- Division of Physical Medicine and Rehabilitation, Department of Clinical Neurosciences, Hotchkiss Brain Institute, Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada
| | - Chris Rorden
- Department of Psychology, University of South Carolina, Columbia, SC, USA
| | - Troy M Herter
- Department of Exercise Science, University of South Carolina, Columbia, SC, USA
| | - Stephen H Scott
- Department of Biomedical and Molecular Sciences, Centre for Neuroscience Studies, Queen's University, Kingston, ON, Canada
| | - Sean P Dukelow
- Division of Physical Medicine and Rehabilitation, Department of Clinical Neurosciences, Hotchkiss Brain Institute, Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada; Calgary Stroke Program, Department of Clinical Neurosciences, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
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19
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Furlan L, Conforto AB, Cohen LG, Sterr A. Upper Limb Immobilisation: A Neural Plasticity Model with Relevance to Poststroke Motor Rehabilitation. Neural Plast 2015; 2016:8176217. [PMID: 26843992 PMCID: PMC4710952 DOI: 10.1155/2016/8176217] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 10/13/2015] [Accepted: 10/19/2015] [Indexed: 11/26/2022] Open
Abstract
Advances in our understanding of the neural plasticity that occurs after hemiparetic stroke have contributed to the formulation of theories of poststroke motor recovery. These theories, in turn, have underpinned contemporary motor rehabilitation strategies for treating motor deficits after stroke, such as upper limb hemiparesis. However, a relative drawback has been that, in general, these strategies are most compatible with the recovery profiles of relatively high-functioning stroke survivors and therefore do not easily translate into benefit to those individuals sustaining low-functioning upper limb hemiparesis, who otherwise have poorer residual function. For these individuals, alternative motor rehabilitation strategies are currently needed. In this paper, we will review upper limb immobilisation studies that have been conducted with healthy adult humans and animals. Then, we will discuss how the findings from these studies could inspire the creation of a neural plasticity model that is likely to be of particular relevance to the context of motor rehabilitation after stroke. For instance, as will be elaborated, such model could contribute to the development of alternative motor rehabilitation strategies for treating poststroke upper limb hemiparesis. The implications of the findings from those immobilisation studies for contemporary motor rehabilitation strategies will also be discussed and perspectives for future research in this arena will be provided as well.
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Affiliation(s)
- Leonardo Furlan
- School of Psychology, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UK
| | - Adriana Bastos Conforto
- Neurology Clinical Division, Clinics Hospital, São Paulo University, Avenida Dr. Enéas C. Aguiar 255/5084, 05403-010 São Paulo, SP, Brazil
- Instituto de Ensino e Pesquisa, Hospital Israelita Albert Einstein, Avenida Albert Einstein 627/701, 05601-901 São Paulo, SP, Brazil
| | - Leonardo G. Cohen
- Human Cortical Physiology and Stroke Rehabilitation Section, National Institutes of Neurological Disorders and Stroke, National Institutes of Health, Building 10, Room 7D54, Bethesda, MD 20892, USA
| | - Annette Sterr
- School of Psychology, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UK
- Neurology Clinical Division, Clinics Hospital, São Paulo University, Avenida Dr. Enéas C. Aguiar 255/5084, 05403-010 São Paulo, SP, Brazil
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20
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Vrana A, Hotz-Boendermaker S, Stämpfli P, Hänggi J, Seifritz E, Humphreys BK, Meier ML. Differential Neural Processing during Motor Imagery of Daily Activities in Chronic Low Back Pain Patients. PLoS One 2015; 10:e0142391. [PMID: 26569602 PMCID: PMC4646462 DOI: 10.1371/journal.pone.0142391] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 10/21/2015] [Indexed: 11/18/2022] Open
Abstract
Chronic low back pain (chronic LBP) is both debilitating for patients but also a major burden on the health care system. Previous studies reported various maladaptive structural and functional changes among chronic LBP patients on spine- and supraspinal levels including behavioral alterations. However, evidence for cortical reorganization in the sensorimotor system of chronic LBP patients is scarce. Motor Imagery (MI) is suitable for investigating the cortical sensorimotor network as it serves as a proxy for motor execution. Our aim was to investigate differential MI-driven cortical processing in chronic LBP compared to healthy controls (HC) by means of functional magnetic resonance imaging (fMRI). Twenty-nine subjects (15 chronic LBP patients, 14 HC) were included in the current study. MI stimuli consisted of randomly presented video clips showing every-day activities involving different whole-body movements as well as walking on even ground and walking downstairs and upstairs. Guided by the video clips, subjects had to perform MI of these activities, subsequently rating the vividness of their MI performance. Brain activity analysis revealed that chronic LBP patients exhibited significantly reduced activity compared to HC subjects in MI-related brain regions, namely the left supplementary motor area and right superior temporal sulcus. Furthermore, psycho-physiological-interaction analysis yielded significantly enhanced functional connectivity (FC) between various MI-associated brain regions in chronic LBP patients indicating diffuse and non-specific changes in FC. Current results demonstrate initial findings about differences in MI-driven cortical processing in chronic LBP pointing towards reorganization processes in the sensorimotor network.
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Affiliation(s)
- Andrea Vrana
- University Hospital of Balgrist, Zurich, Switzerland
- Department of Health Sciences and Technology, Human Movement Sciences, ETH Zurich, Switzerland
| | | | - Philipp Stämpfli
- Department of Psychiatry, Psychotherapy and Psychosomatics, Hospital of Psychiatry, University of Zurich, Zurich, Switzerland
- MR-Center of the Psychiatric Hospital and the Department of Child and Adolescent Psychiatry, University of Zurich, Zurich, Switzerland
| | - Jürgen Hänggi
- Division Neuropsychology, Department of Psychology, University of Zurich, Zurich, Switzerland
| | - Erich Seifritz
- Department of Psychiatry, Psychotherapy and Psychosomatics, Hospital of Psychiatry, University of Zurich, Zurich, Switzerland
| | | | - Michael L. Meier
- University Hospital of Balgrist, Zurich, Switzerland
- Center of Dental Medicine, University of Zurich, Zurich, Switzerland
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21
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Fautrelle L, Mareschal D, French R, Addyman C, Thomas E. Motor activity improves temporal expectancy. PLoS One 2015; 10:e0119187. [PMID: 25806813 PMCID: PMC4373886 DOI: 10.1371/journal.pone.0119187] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Accepted: 01/16/2015] [Indexed: 11/19/2022] Open
Abstract
Certain brain areas involved in interval timing are also important in motor activity. This raises the possibility that motor activity might influence interval timing. To test this hypothesis, we assessed interval timing in healthy adults following different types of training. The pre- and post-training tasks consisted of a button press in response to the presentation of a rhythmic visual stimulus. Alterations in temporal expectancy were evaluated by measuring response times. Training consisted of responding to the visual presentation of regularly appearing stimuli by either: (1) pointing with a whole-body movement, (2) pointing only with the arm, (3) imagining pointing with a whole-body movement, (4) simply watching the stimulus presentation, (5) pointing with a whole-body movement in response to a target that appeared at irregular intervals (6) reading a newspaper. Participants performing a motor activity in response to the regular target showed significant improvements in judgment times compared to individuals with no associated motor activity. Individuals who only imagined pointing with a whole-body movement also showed significant improvements. No improvements were observed in the group that trained with a motor response to an irregular stimulus, hence eliminating the explanation that the improved temporal expectations of the other motor training groups was purely due to an improved motor capacity to press the response button. All groups performed a secondary task equally well, hence indicating that our results could not simply be attributed to differences in attention between the groups. Our results show that motor activity, even when it does not play a causal or corrective role, can lead to improved interval timing judgments.
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Affiliation(s)
- Lilian Fautrelle
- Unité de Formation et de Recherche en Sciences et Techniques des Activités Physiques et Sportives, EA2931 Centre de Recherches sur le Sport et le Mouvement, Université Paris Ouest, Nanterre La Défense, France
| | - Denis Mareschal
- Centre for Brain and Cognitive Development, Department of Psychological Sciences, Birkbeck University of London, London, United Kingdom
| | - Robert French
- Centre National de la Recherche Scientifique, UMR 5022, Laboratoire d’Etude de l’Apprentissage et du Développement, Dijon, France
| | - Caspar Addyman
- Centre for Brain and Cognitive Development, Department of Psychological Sciences, Birkbeck University of London, London, United Kingdom
| | - Elizabeth Thomas
- Institut National de la Santé et de la Recherche Médicale, Unité 1093, Cognition, Action et Plasticité Sensori-Motrice, Université de Bourgogne, Dijon, Campus Universitaire, Unité de Formation et de Recherche en Sciences et Techniques des Activités Physiques et Sportives, Dijon, France
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22
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Mercadillo RE, Galvez V, Díaz R, Paredes L, Velázquez-Moctezuma J, Hernandez-Castillo CR, Fernandez-Ruiz J. Social and Cultural Elements Associated with Neurocognitive Dysfunctions in Spinocerebellar Ataxia Type 2 Patients. Front Psychiatry 2015; 6:90. [PMID: 26113822 PMCID: PMC4462049 DOI: 10.3389/fpsyt.2015.00090] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 05/27/2015] [Indexed: 11/30/2022] Open
Abstract
Spinocerebellar Ataxia Type 2 (SCA2) is a rare genetic disorder producing cerebellar degeneration and affecting motor abilities. Neuroimaging studies also show neurodegeneration in subcortical and cortical regions related to emotional and social processes. From social neuroscience, it is suggested that motor and social abilities can be influenced by particular cultural dynamics so, culture is fundamental to understand the effect of brain-related alterations. Here, we present the first analysis about the cultural elements related to the SCA2 disorder in 15 patients previously evaluated with neuroimaging and psychometric instruments, and their nuclear relationships distributed in six geographical and cultural regions in Mexico. Ethnographic records and photographic and video archives about the quotidian participant's routine were obtained from the patients, their relatives and their caregivers. The information was categorized and interpreted taking into consideration cultural issues and patients' medical files. Our analyses suggest that most of the participants do not understand the nature of the disease and this misunderstanding favors magic and non-medical explanations. Patients' testimonies suggest a decrease in pain perception as well as motor alterations that may be related to interoceptive dysfunctions. Relatives' testimonies indicate patients' lack of social and emotional interests that may be related to frontal, temporal, and cerebellar degeneration. In general, participants use their religious beliefs to deal with the disease and only a few of them trust the health system. Patients and their families are either openly rejected and ignored, tolerated or even helped by their community accordingly to different regional traits. We propose that ethnography can provide social representations to understand the patients' alterations, to formulate neurobiological hypotheses, to develop neurocognitive interventions, and to improve the medical approach to the disease.
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Affiliation(s)
- Roberto Emmanuele Mercadillo
- Laboratorio de Neuropsicología, Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México , Mexico City , Mexico ; Consejo Nacional de Ciencia y Tecnología-Cátedras , Mexico City , Mexico ; Área de Neurociencias, Departamento de Biología de la Reproducción, Universidad Autónoma Metropolitana, Unidad Iztapalapa , Mexico City , Mexico
| | - Víctor Galvez
- Posgrado en Neuroetología, Universidad Veracruzana , Xalapa , Mexico
| | - Rosalinda Díaz
- Laboratorio de Neuropsicología, Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México , Mexico City , Mexico
| | - Lorena Paredes
- Facultad de Psicología, Universidad Nacional Autónoma de México , Mexico City , Mexico
| | - Javier Velázquez-Moctezuma
- Área de Neurociencias, Departamento de Biología de la Reproducción, Universidad Autónoma Metropolitana, Unidad Iztapalapa , Mexico City , Mexico
| | - Carlos R Hernandez-Castillo
- Consejo Nacional de Ciencia y Tecnología-Cátedras , Mexico City , Mexico ; Instituto de Neuroetología, Universidad Veracruzana , Xalapa , Mexico
| | - Juan Fernandez-Ruiz
- Laboratorio de Neuropsicología, Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México , Mexico City , Mexico ; Posgrado en Neuroetología, Universidad Veracruzana , Xalapa , Mexico ; Facultad de Psicología, Universidad Veracruzana , Xalapa , Mexico
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23
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Solesio‐Jofre E, Serbruyns L, Woolley DG, Mantini D, Beets IAM, Swinnen SP. Aging effects on the resting state motor network and interlimb coordination. Hum Brain Mapp 2014; 35:3945-61. [PMID: 24453170 PMCID: PMC6869293 DOI: 10.1002/hbm.22450] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 11/29/2013] [Accepted: 12/02/2013] [Indexed: 01/14/2023] Open
Abstract
Both increases and decreases in resting state functional connectivity have been previously observed within the motor network during aging. Moreover, the relationship between altered functional connectivity and age-related declines in bimanual coordination remains unclear. Here, we explored the developmental dynamics of the resting brain within a task-specific motor network in a sample of 128 healthy participants, aged 18-80 years. We found that age-related increases in functional connectivity between interhemispheric dorsal and ventral premotor areas were associated with poorer performance on a novel bimanual visuomotor task. Additionally, a control analysis performed on the default mode network confirmed that our age-related increases in functional connectivity were specific to the motor system. Our findings suggest that increases in functional connectivity within the resting state motor network with aging reflect a loss of functional specialization that may not only occur in the active brain but also in the resting brain.
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Affiliation(s)
- Elena Solesio‐Jofre
- Motor Control LaboratoryMovement Control and Neuroplasticity Research GroupKU Leuven, Tervuurse Vest 1013001LeuvenBelgium
| | - Leen Serbruyns
- Motor Control LaboratoryMovement Control and Neuroplasticity Research GroupKU Leuven, Tervuurse Vest 1013001LeuvenBelgium
| | - Daniel G. Woolley
- Motor Control LaboratoryMovement Control and Neuroplasticity Research GroupKU Leuven, Tervuurse Vest 1013001LeuvenBelgium
| | - Dante Mantini
- Department of Health Sciences and TechnologyETH ZurichWinterthurerstrasse 1908057ZurichSwitzerland
- Department of Experimental PsychologyUniversity of Oxford9 South Parks Road, OX1 3UD OxfordUnited Kingdom
- Laboratory for Neuro‐ and PsychophysiologyDepartment of NeurosciencesKU Leuven, Herestraat 493000LeuvenBelgium
| | - Iseult A. M. Beets
- Motor Control LaboratoryMovement Control and Neuroplasticity Research GroupKU Leuven, Tervuurse Vest 1013001LeuvenBelgium
| | - Stephan P. Swinnen
- Motor Control LaboratoryMovement Control and Neuroplasticity Research GroupKU Leuven, Tervuurse Vest 1013001LeuvenBelgium
- Leuven Research Institute for Neuroscience & Disease (LIND)KU LeuvenBelgium
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24
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Schmidt TT, Ostwald D, Blankenburg F. Imaging tactile imagery: changes in brain connectivity support perceptual grounding of mental images in primary sensory cortices. Neuroimage 2014; 98:216-24. [PMID: 24836010 DOI: 10.1016/j.neuroimage.2014.05.014] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 05/05/2014] [Accepted: 05/06/2014] [Indexed: 12/31/2022] Open
Abstract
Constructing mental representations in the absence of sensory stimulation is a fundamental ability of the human mind and has been investigated in numerous brain imaging studies. However, it is still unclear how brain areas facilitating mental construction processes interact with brain regions related to specific sensory representations. In this fMRI study subjects formed mental representations of tactile stimuli either from memory (imagery) or from presentation of actual corresponding vibrotactile patterned stimuli. First our analysis addressed the question of whether tactile imagery recruits primary somatosensory cortex (SI), because the activation of early perceptual areas is classically interpreted as perceptual grounding of the mental image. We also tested whether a network, referred to as 'core construction system', is involved in the generation of mental representations in the somatosensory domain. In fact, we observed imagery-induced activation of SI. We further found support for the notion of a modality independent construction network with the retrosplenial cortices and the precuneus as core components, which were supplemented with the left inferior frontal gyrus (IFG). Finally, psychophysiological interaction (PPI) analyses revealed robust imagery-modulated changes in the connectivity of these construction related areas, which suggests that they orchestrate the assembly of an abstract mental representation. Interestingly, we found increased coupling between prefrontal cortex (left IFG) and SI during mental imagery, indicating the augmentation of an abstract mental representation by reactivating perceptually grounded sensory details.
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Affiliation(s)
- Timo Torsten Schmidt
- Neurocomputation and Neuroimaging Unit (NNU), Department of Education and Psychology, Freie Universität Berlin, 14195 Berlin, Germany; Bernstein Center for Computational Neuroscience, 10115 Berlin, Germany; Max Planck Institute for Human Development, Center for Adaptive Rationality (ARC), 14195 Berlin, Germany.
| | - Dirk Ostwald
- Bernstein Center for Computational Neuroscience, 10115 Berlin, Germany; Max Planck Institute for Human Development, Center for Adaptive Rationality (ARC), 14195 Berlin, Germany
| | - Felix Blankenburg
- Neurocomputation and Neuroimaging Unit (NNU), Department of Education and Psychology, Freie Universität Berlin, 14195 Berlin, Germany; Bernstein Center for Computational Neuroscience, 10115 Berlin, Germany; Max Planck Institute for Human Development, Center for Adaptive Rationality (ARC), 14195 Berlin, Germany
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25
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Bimanual and unimanual length perception. Exp Brain Res 2014; 232:2827-33. [PMID: 24792507 DOI: 10.1007/s00221-014-3974-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 04/20/2014] [Indexed: 01/08/2023]
Abstract
From previous studies, it is unclear how bimanual length discrimination differs from unimanual length discrimination. To investigate the difference, we designed an experiment with four conditions. In the first two conditions, unimanual and bimanual discrimination thresholds are determined. In the third and fourth conditions, length is explored with the two index fingers like in the bimanual condition, but the reference is either internal, by clasping the hands together, or external, by grasping handles connected to the table. We find that thresholds for the unimanual condition (7.0%) and the clasping condition (9.2%) are both lower than for the bimanual condition (16%) and the grasping handles condition (15%). We conclude that when discriminating length unimanually and bimanually while clasping the hands together, the internal reference within the hand can be used and that explains the lower discrimination thresholds.
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Murdaugh DL, Nadendla KD, Kana RK. Differential role of temporoparietal junction and medial prefrontal cortex in causal inference in autism: An independent component analysis. Neurosci Lett 2014; 568:50-5. [PMID: 24695086 DOI: 10.1016/j.neulet.2014.03.051] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 03/18/2014] [Accepted: 03/21/2014] [Indexed: 10/25/2022]
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Smith AM, Messier C. Voluntary Out-of-Body Experience: An fMRI Study. Front Hum Neurosci 2014; 8:70. [PMID: 24575000 PMCID: PMC3918960 DOI: 10.3389/fnhum.2014.00070] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 01/28/2014] [Indexed: 11/29/2022] Open
Abstract
The present single-case study examined functional brain imaging patterns in a participant that reported being able, at will, to produce somatosensory sensations that are experienced as her body moving outside the boundaries of her physical body all the while remaining aware of her unmoving physical body. We found that the brain functional changes associated with the reported extra-corporeal experience (ECE) were different than those observed in motor imagery. Activations were mainly left-sided and involved the left supplementary motor area and supramarginal and posterior superior temporal gyri, the last two overlapping with the temporal parietal junction that has been associated with out-of-body experiences. The cerebellum also showed activation that is consistent with the participant’s report of the impression of movement during the ECE. There was also left middle and superior orbital frontal gyri activity, regions often associated with action monitoring. The results suggest that the ECE reported here represents an unusual type of kinesthetic imagery.
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Affiliation(s)
- Andra M Smith
- School of Psychology, University of Ottawa , Ottawa, ON , Canada
| | - Claude Messier
- School of Psychology, University of Ottawa , Ottawa, ON , Canada
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