Neurofeedback Using Real-Time Near-Infrared Spectroscopy Enhances Motor Imagery Related Cortical Activation
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{"title"=>"Neurofeedback using real-time near-infrared spectroscopy enhances motor imagery related cortical activation", "type"=>"journal", "authors"=>[{"first_name"=>"Masahito", "last_name"=>"Mihara", "scopus_author_id"=>"12243263100"}, {"first_name"=>"Ichiro", "last_name"=>"Miyai", "scopus_author_id"=>"57197991576"}, {"first_name"=>"Noriaki", "last_name"=>"Hattori", "scopus_author_id"=>"7201655764"}, {"first_name"=>"Megumi", "last_name"=>"Hatakenaka", "scopus_author_id"=>"12647598200"}, {"first_name"=>"Hajime", "last_name"=>"Yagura", "scopus_author_id"=>"56216444600"}, {"first_name"=>"Teiji", "last_name"=>"Kawano", "scopus_author_id"=>"55047743400"}, {"first_name"=>"Masaki", "last_name"=>"Okibayashi", "scopus_author_id"=>"55053569400"}, {"first_name"=>"Nobuyoshi", "last_name"=>"Danjo", "scopus_author_id"=>"55055130900"}, {"first_name"=>"Akihiro", "last_name"=>"Ishikawa", "scopus_author_id"=>"8664151500"}, {"first_name"=>"Yoshihiro", "last_name"=>"Inoue", "scopus_author_id"=>"54787731700"}, {"first_name"=>"Kisou", "last_name"=>"Kubota", "scopus_author_id"=>"7402691763"}], "year"=>2012, "source"=>"PLoS ONE", "identifiers"=>{"pui"=>"364370561", "sgr"=>"84857700941", "pmid"=>"22396753", "scopus"=>"2-s2.0-84857700941", "isbn"=>"1932-6203 (Electronic)\\r1932-6203 (Linking)", "arxiv"=>"10.1371/journal.pone.0032234", "doi"=>"10.1371/journal.pone.0032234", "issn"=>"19326203"}, "id"=>"d60681b9-9cac-3862-86a4-7653c14c832c", "abstract"=>"Accumulating evidence indicates that motor imagery and motor execution share common neural networks. Accordingly, mental practices in the form of motor imagery have been implemented in rehabilitation regimes of stroke patients with favorable results. Because direct monitoring of motor imagery is difficult, feedback of cortical activities related to motor imagery (neurofeedback) could help to enhance efficacy of mental practice with motor imagery. To determine the feasibility and efficacy of a real-time neurofeedback system mediated by near-infrared spectroscopy (NIRS), two separate experiments were performed. Experiment 1 was used in five subjects to evaluate whether real-time cortical oxygenated hemoglobin signal feedback during a motor execution task correlated with reference hemoglobin signals computed off-line. Results demonstrated that the NIRS-mediated neurofeedback system reliably detected oxygenated hemoglobin signal changes in real-time. In Experiment 2, 21 subjects performed motor imagery of finger movements with feedback from relevant cortical signals and irrelevant sham signals. Real neurofeedback induced significantly greater activation of the contralateral premotor cortex and greater self-assessment scores for kinesthetic motor imagery compared with sham feedback. These findings suggested the feasibility and potential effectiveness of a NIRS-mediated real-time neurofeedback system on performance of kinesthetic motor imagery. However, these results warrant further clinical trials to determine whether this system could enhance the effects of mental practice in stroke patients.", "link"=>"http://www.mendeley.com/research/neurofeedback-using-realtime-nearinfrared-spectroscopy-enhances-motor-imagery-related-cortical-activ", "reader_count"=>176, "reader_count_by_academic_status"=>{"Unspecified"=>4, "Professor > Associate Professor"=>8, "Researcher"=>35, "Student > Doctoral Student"=>15, "Student > Ph. D. Student"=>40, "Student > Postgraduate"=>6, "Other"=>4, "Student > Master"=>35, "Student > Bachelor"=>20, "Lecturer > Senior Lecturer"=>1, "Professor"=>8}, "reader_count_by_user_role"=>{"Unspecified"=>4, "Professor > Associate Professor"=>8, "Researcher"=>35, "Student > Doctoral Student"=>15, "Student > Ph. D. Student"=>40, "Student > Postgraduate"=>6, "Other"=>4, "Student > Master"=>35, "Student > Bachelor"=>20, "Lecturer > Senior Lecturer"=>1, "Professor"=>8}, "reader_count_by_subject_area"=>{"Engineering"=>20, "Unspecified"=>11, "Nursing and Health Professions"=>6, "Medicine and Dentistry"=>38, "Agricultural and Biological Sciences"=>13, "Neuroscience"=>18, "Sports and Recreations"=>8, "Physics and Astronomy"=>2, "Psychology"=>50, "Computer Science"=>9, "Earth and Planetary Sciences"=>1}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>20}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>38}, "Neuroscience"=>{"Neuroscience"=>18}, "Sports and Recreations"=>{"Sports and Recreations"=>8}, "Physics and Astronomy"=>{"Physics and Astronomy"=>2}, "Psychology"=>{"Psychology"=>50}, "Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>13}, "Computer Science"=>{"Computer Science"=>9}, "Nursing and Health Professions"=>{"Nursing and Health Professions"=>6}, "Unspecified"=>{"Unspecified"=>11}}, "reader_count_by_country"=>{"United States"=>2, "Japan"=>4, "Brazil"=>1, "Italy"=>2, "United Kingdom"=>2, "Malaysia"=>1, "Switzerland"=>2, "Germany"=>1}, "group_count"=>7}

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/673299"], "description"=>"<p>Results from second-level random effect analysis of comparisons between real feedbacks <i>vs.</i> baseline <i>(A)</i>, between sham feedback <i>vs.</i> baseline <i>(B)</i>, real <i>vs.</i> sham feedback <i>(C)</i>, and sham <i>vs.</i> real feedback <i>(D)</i>. Within-subject comparison between feedback conditions revealed significantly increased cortical activation in the left lateral premotor cortex under real feedback conditions compared with sham feedback conditions, as well as significantly increased activation in the bilateral parietal association cortex under sham feedback conditions compared with real feedback conditions.</p>", "links"=>[], "tags"=>["physiology", "neuroscience", "neurological disorders"], "article_id"=>343777, "categories"=>["Physiology", "Neuroscience"], "users"=>["Masahito Mihara", "Ichiro Miyai", "Noriaki Hattori", "Megumi Hatakenaka", "Hajime Yagura", "Teiji Kawano", "Masaki Okibayashi", "Nobuyoshi Danjo", "Akihiro Ishikawa", "Yoshihiro Inoue", "Kisou Kubota"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0032234.g006", "stats"=>{"downloads"=>0, "page_views"=>4, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Cortical_mapping_of_motor_imagery_8211_related_activation_/343777", "title"=>"Cortical mapping of motor imagery–related activation.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 08:14:00"}
  • {"files"=>["https://ndownloader.figshare.com/files/672784"], "description"=>"<p><b><i>A,</i></b> Fiber arrangement for the 50-channel NIRS system. The light source at the center of the third row was placed at the subject's vertex (Cz). <b><i>B,</i></b> Estimated location of each NIRS channel, which was defined as the midpoint of the line between the corresponding light source-detector pair. <b><i>C,</i></b> Estimated cortical area covered by channels 4, 9, and 17, which was set as the neurofeedback source of cortical activation related to the motor imagery task.</p>", "links"=>[], "tags"=>["nirs"], "article_id"=>343267, "categories"=>["Physiology", "Neuroscience"], "users"=>["Masahito Mihara", "Ichiro Miyai", "Noriaki Hattori", "Megumi Hatakenaka", "Hajime Yagura", "Teiji Kawano", "Masaki Okibayashi", "Nobuyoshi Danjo", "Akihiro Ishikawa", "Yoshihiro Inoue", "Kisou Kubota"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0032234.g002", "stats"=>{"downloads"=>1, "page_views"=>13, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Cortical_placement_of_NIRS_channels_/343267", "title"=>"Cortical placement of NIRS channels.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 08:11:04"}
  • {"files"=>["https://ndownloader.figshare.com/files/673393"], "description"=>"<p>In the left PMC, task-related OxyHb signal changes increased under real feedback conditions. In the left parietal association cortex, task-related OxyHb signal changes increased under sham feedback conditions. OxyHb signal changes were comparable between feedback conditions in the left SMC. In the left parietal association cortex, task-related DeoxyHb signals decreased only under sham feedback conditions.</p>", "links"=>[], "tags"=>["hemoglobin", "changes", "parietal"], "article_id"=>343876, "categories"=>["Physiology", "Neuroscience"], "users"=>["Masahito Mihara", "Ichiro Miyai", "Noriaki Hattori", "Megumi Hatakenaka", "Hajime Yagura", "Teiji Kawano", "Masaki Okibayashi", "Nobuyoshi Danjo", "Akihiro Ishikawa", "Yoshihiro Inoue", "Kisou Kubota"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0032234.g007", "stats"=>{"downloads"=>1, "page_views"=>8, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Average_hemoglobin_signal_changes_in_the_left_SMC_left_PMC_and_left_parietal_association_cortex_/343876", "title"=>"Average hemoglobin signal changes in the left SMC, left PMC, and left parietal association cortex.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 08:14:31"}
  • {"files"=>["https://ndownloader.figshare.com/files/673657"], "description"=>"<p>CH: channel number; BA: Brodmann area; PreCG: precentral gyrus; SFG: superior frontal gyrus; MFG: middle frontal gyrus; SMA: supplementary motor area; SPL: superior parietal lobule.</p>", "links"=>[], "tags"=>["signal-based", "cortical", "imagery"], "article_id"=>344133, "categories"=>["Physiology", "Neuroscience"], "users"=>["Masahito Mihara", "Ichiro Miyai", "Noriaki Hattori", "Megumi Hatakenaka", "Hajime Yagura", "Teiji Kawano", "Masaki Okibayashi", "Nobuyoshi Danjo", "Akihiro Ishikawa", "Yoshihiro Inoue", "Kisou Kubota"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0032234.t003", "stats"=>{"downloads"=>0, "page_views"=>8, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_OxyHb_signal_based_cortical_mapping_analysis_for_motor_imagery_with_feedback_/344133", "title"=>"OxyHb signal-based cortical mapping analysis for motor imagery with feedback.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-20 08:15:53"}
  • {"files"=>["https://ndownloader.figshare.com/files/673011"], "description"=>"<p><b><i>A, B,</i></b> Scatter plot of calculated <i>t</i>-values from real-time processing and off-line processing in five subjects using (B) OxyHb signal data and (C) DeoxyHb signal data. Using OxyHb signal data, all five subjects exhibited significant correlations between real-time assessments of cortical activation calculated from sliding-window GLM analysis (T<sub>SWA</sub>) and reference cortical activation calculated from task-by-task GLM analysis (T<sub>Ref</sub>). However, correlations between T<sub>SWA</sub> and T<sub>Ref</sub> were less with DeoxyHb data. <b><i>C,</i></b> The dynamic change of cortical activation feedback, as calculated from sliding-window GLM analysis (black line) and reference cortical activations calculated from the task-by-task GLM analysis (gray bar) in Experiment 1 (data from a representative subject).</p>", "links"=>[], "tags"=>["calculated", "Real-time", "off-line"], "article_id"=>343489, "categories"=>["Physiology", "Neuroscience"], "users"=>["Masahito Mihara", "Ichiro Miyai", "Noriaki Hattori", "Megumi Hatakenaka", "Hajime Yagura", "Teiji Kawano", "Masaki Okibayashi", "Nobuyoshi Danjo", "Akihiro Ishikawa", "Yoshihiro Inoue", "Kisou Kubota"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0032234.g004", "stats"=>{"downloads"=>2, "page_views"=>15, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Comparison_of_calculated_t_values_from_real_time_processing_and_off_line_processing_/343489", "title"=>"Comparison of calculated <i>t</i>-values from real-time processing and off-line processing.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 08:12:16"}
  • {"files"=>["https://ndownloader.figshare.com/files/673180"], "description"=>"<p>Paired <i>t</i>-test revealed increased self-assessment scores for kinesthetic motor imagery under real feedback conditions.</p>", "links"=>[], "tags"=>["scores", "kinesthetic", "imagery", "sham"], "article_id"=>343656, "categories"=>["Physiology", "Neuroscience"], "users"=>["Masahito Mihara", "Ichiro Miyai", "Noriaki Hattori", "Megumi Hatakenaka", "Hajime Yagura", "Teiji Kawano", "Masaki Okibayashi", "Nobuyoshi Danjo", "Akihiro Ishikawa", "Yoshihiro Inoue", "Kisou Kubota"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0032234.g005", "stats"=>{"downloads"=>0, "page_views"=>18, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Self_assessment_scale_scores_for_kinesthetic_motor_imagery_under_real_and_sham_feedback_conditions_/343656", "title"=>"Self-assessment scale scores for kinesthetic motor imagery under real and sham feedback conditions.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 08:13:19"}
  • {"files"=>["https://ndownloader.figshare.com/files/673704"], "description"=>"<p>Correlation analysis between t-values calculated from task-by-task analyses (T<sub>Ref</sub>) and t-values calculated from sliding-window GLM analyses (T<sub>SWA</sub>).</p>", "links"=>[], "tags"=>["t-values", "calculated", "task-by-task", "analyses", "sliding-window", "glm"], "article_id"=>344169, "categories"=>["Physiology", "Neuroscience"], "users"=>["Masahito Mihara", "Ichiro Miyai", "Noriaki Hattori", "Megumi Hatakenaka", "Hajime Yagura", "Teiji Kawano", "Masaki Okibayashi", "Nobuyoshi Danjo", "Akihiro Ishikawa", "Yoshihiro Inoue", "Kisou Kubota"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0032234.t001", "stats"=>{"downloads"=>8, "page_views"=>14, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Correlation_analysis_between_t_values_calculated_from_task_by_task_analyses_T_Ref_and_t_values_calculated_from_sliding_window_GLM_analyses_T_SWA_/344169", "title"=>"Correlation analysis between t-values calculated from task-by-task analyses (T<sub>Ref</sub>) and t-values calculated from sliding-window GLM analyses (T<sub>SWA</sub>).", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-20 08:16:07"}
  • {"files"=>["https://ndownloader.figshare.com/files/673568"], "description"=>"<p>CH: channel number; BA: Brodmann area; SPL: superior parietal lobule.</p>", "links"=>[], "tags"=>["signal-based", "cortical", "imagery"], "article_id"=>344042, "categories"=>["Physiology", "Neuroscience"], "users"=>["Masahito Mihara", "Ichiro Miyai", "Noriaki Hattori", "Megumi Hatakenaka", "Hajime Yagura", "Teiji Kawano", "Masaki Okibayashi", "Nobuyoshi Danjo", "Akihiro Ishikawa", "Yoshihiro Inoue", "Kisou Kubota"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0032234.t004", "stats"=>{"downloads"=>0, "page_views"=>9, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_DeoxyHb_signal_based_cortical_mapping_analysis_for_motor_imagery_with_feedback_/344042", "title"=>"DeoxyHb signal-based cortical mapping analysis for motor imagery with feedback.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-20 08:15:24"}
  • {"files"=>["https://ndownloader.figshare.com/files/672902"], "description"=>"<p><b><i>A,</i></b> The design matrix for real-time sliding-window GLM analysis. The time window was 80 data points wide. The matrix consisted of one constant column, three columns for task and rest phases, respectively, and one linear term (L). Task-related signal changes were estimated as a beta value, comparing task data with resting data. <b><i>B,</i></b> The design matrix for off-line task-by-task GLM analysis. The matrix consisted of a constant column, columns for each task, and a high-pass filter with a cut-off frequency of 0.0125 Hz.</p>", "links"=>[], "tags"=>["matrices", "Real-time", "off-line"], "article_id"=>343376, "categories"=>["Physiology", "Neuroscience"], "users"=>["Masahito Mihara", "Ichiro Miyai", "Noriaki Hattori", "Megumi Hatakenaka", "Hajime Yagura", "Teiji Kawano", "Masaki Okibayashi", "Nobuyoshi Danjo", "Akihiro Ishikawa", "Yoshihiro Inoue", "Kisou Kubota"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0032234.g003", "stats"=>{"downloads"=>0, "page_views"=>16, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Design_matrices_for_real_time_processing_and_off_line_processing_/343376", "title"=>"Design matrices for real-time processing and off-line processing.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 08:11:40"}
  • {"files"=>["https://ndownloader.figshare.com/files/673603"], "description"=>"<p>M: male F: female.</p>", "links"=>[], "tags"=>["self-assessment", "scores", "21"], "article_id"=>344082, "categories"=>["Physiology", "Neuroscience"], "users"=>["Masahito Mihara", "Ichiro Miyai", "Noriaki Hattori", "Megumi Hatakenaka", "Hajime Yagura", "Teiji Kawano", "Masaki Okibayashi", "Nobuyoshi Danjo", "Akihiro Ishikawa", "Yoshihiro Inoue", "Kisou Kubota"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0032234.t002", "stats"=>{"downloads"=>0, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Individual_self_assessment_scores_from_21_participants_/344082", "title"=>"Individual self-assessment scores from 21 participants.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-20 08:15:39"}
  • {"files"=>["https://ndownloader.figshare.com/files/672661"], "description"=>"<p><b><i>A,</i></b> Representation of time course of the experiment. Subjects were asked to perform 15 repetitions of a 5-s task with randomized inter-task rest periods between 8–15 s. The total length of one experimental session was no longer than 250 s. <b><i>B,</i></b> Schematic figure of the NIRS-mediated neurofeedback system. Task-related cortical hemoglobin signal changes were transferred to a data-processing computer, and the evaluated cortical activation was visually fed back in real-time. Cortical activation was represented by bar height and color. <b><i>C,</i></b> The NIRS-mediated neurofeedback system in use. Subjects were seated in an armchair, and the heads were fixed to the headrest to avoid excessive head movement during experimentation.</p>", "links"=>[], "tags"=>["Neurofeedback"], "article_id"=>343123, "categories"=>["Physiology", "Neuroscience"], "users"=>["Masahito Mihara", "Ichiro Miyai", "Noriaki Hattori", "Megumi Hatakenaka", "Hajime Yagura", "Teiji Kawano", "Masaki Okibayashi", "Nobuyoshi Danjo", "Akihiro Ishikawa", "Yoshihiro Inoue", "Kisou Kubota"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0032234.g001", "stats"=>{"downloads"=>2, "page_views"=>26, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Configuration_and_testing_of_the_neurofeedback_system_using_NIRS_/343123", "title"=>"Configuration and testing of the neurofeedback system using NIRS.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 08:10:19"}

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