Pulsed Ultrasound Differentially Stimulates Somatosensory Circuits in Humans as Indicated by EEG and fMRI
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{"title"=>"Pulsed Ultrasound Differentially Stimulates Somatosensory Circuits in Humans as Indicated by EEG and fMRI", "type"=>"journal", "authors"=>[{"first_name"=>"Wynn", "last_name"=>"Legon", "scopus_author_id"=>"13906216700"}, {"first_name"=>"Abby", "last_name"=>"Rowlands", "scopus_author_id"=>"55515119700"}, {"first_name"=>"Alexander", "last_name"=>"Opitz", "scopus_author_id"=>"37031730700"}, {"first_name"=>"Tomokazu F.", "last_name"=>"Sato", "scopus_author_id"=>"55515188500"}, {"first_name"=>"William J.", "last_name"=>"Tyler", "scopus_author_id"=>"7006363447"}], "year"=>2012, "source"=>"PLoS ONE", "identifiers"=>{"scopus"=>"2-s2.0-84870752721", "doi"=>"10.1371/journal.pone.0051177", "sgr"=>"84870752721", "isbn"=>"1932-6203 (Electronic)\\r1932-6203 (Linking)", "pmid"=>"23226567", "issn"=>"19326203", "pui"=>"366222066"}, "id"=>"d3a2f38a-abf2-378a-a25c-6f31824dcafe", "abstract"=>"Peripheral somatosensory circuits are known to respond to diverse stimulus modalities. The energy modalities capable of eliciting somatosensory responses traditionally belong to mechanical, thermal, electromagnetic, and photonic domains. Ultrasound (US) applied to the periphery has also been reported to evoke diverse somatosensations. These observations however have been based primarily on subjective reports and lack neurophysiological descriptions. To investigate the effects of peripherally applied US on human somatosensory brain circuit activity we recorded evoked potentials using electroencephalography and conducted functional magnetic resonance imaging of blood oxygen level-dependent (BOLD) responses to fingertip stimulation with pulsed US. We found a pulsed US waveform designed to elicit a mild vibration sensation reliably triggered evoked potentials having distinct waveform morphologies including a large double-peaked vertex potential. Fingertip stimulation with this pulsed US waveform also led to the appearance of BOLD signals in brain regions responsible for somatosensory discrimination including the primary somatosensory cortex and parietal operculum, as well as brain regions involved in hierarchical somatosensory processing, such as the insula, anterior middle cingulate cortex, and supramarginal gyrus. By changing the energy profile of the pulsed US stimulus waveform we observed pulsed US can differentially activate somatosensory circuits and alter subjective reports that are concomitant with changes in evoked potential morphology and BOLD response patterns. Based on these observations we conclude pulsed US can functionally stimulate different somatosensory fibers and receptors, which may permit new approaches to the study and diagnosis of peripheral nerve injury, dysfunction, and disease.", "link"=>"http://www.mendeley.com/research/pulsed-ultrasound-differentially-stimulates-somatosensory-circuits-humans-indicated-eeg-fmri", "reader_count"=>115, "reader_count_by_academic_status"=>{"Unspecified"=>2, "Professor > Associate Professor"=>8, "Student > Doctoral Student"=>3, "Researcher"=>25, "Student > Ph. D. Student"=>30, "Student > Postgraduate"=>5, "Student > Master"=>15, "Other"=>2, "Student > Bachelor"=>11, "Professor"=>14}, "reader_count_by_user_role"=>{"Unspecified"=>2, "Professor > Associate Professor"=>8, "Student > Doctoral Student"=>3, "Researcher"=>25, "Student > Ph. D. Student"=>30, "Student > Postgraduate"=>5, "Student > Master"=>15, "Other"=>2, "Student > Bachelor"=>11, "Professor"=>14}, "reader_count_by_subject_area"=>{"Engineering"=>36, "Unspecified"=>7, "Environmental Science"=>1, "Mathematics"=>1, "Agricultural and Biological Sciences"=>22, "Medicine and Dentistry"=>9, "Neuroscience"=>19, "Philosophy"=>1, "Sports and Recreations"=>1, "Physics and Astronomy"=>7, "Psychology"=>9, "Computer Science"=>2}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>36}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>9}, "Neuroscience"=>{"Neuroscience"=>19}, "Sports and Recreations"=>{"Sports and Recreations"=>1}, "Physics and Astronomy"=>{"Physics and Astronomy"=>7}, "Psychology"=>{"Psychology"=>9}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>22}, "Computer Science"=>{"Computer Science"=>2}, "Mathematics"=>{"Mathematics"=>1}, "Unspecified"=>{"Unspecified"=>7}, "Environmental Science"=>{"Environmental Science"=>1}, "Philosophy"=>{"Philosophy"=>1}}, "reader_count_by_country"=>{"Hungary"=>1, "United States"=>3, "United Kingdom"=>1, "Slovenia"=>1, "Australia"=>1, "France"=>2, "Switzerland"=>1, "Germany"=>1}, "group_count"=>10}

Scopus | Further Information

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/532036"], "description"=>"<p>Summary of evoked potential data obtained in response to right fingertip stimulation with pulsed US and vibrotactile sources.</p>", "links"=>[], "tags"=>["evoked", "fingertip", "stimulation", "pulsed", "vibrotactile"], "article_id"=>202526, "categories"=>["Physiology", "Neuroscience"], "users"=>["Wynn Legon", "Abby Rowlands", "Alexander Opitz", "Tomokazu F. Sato", "William J. Tyler"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0051177.t001", "stats"=>{"downloads"=>4, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Summary_of_evoked_potential_data_obtained_in_response_to_right_fingertip_stimulation_with_pulsed_US_and_vibrotactile_sources_/202526", "title"=>"Summary of evoked potential data obtained in response to right fingertip stimulation with pulsed US and vibrotactile sources.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-19 19:18:25"}
  • {"files"=>["https://ndownloader.figshare.com/files/531095"], "description"=>"<p>(<b>A</b>) Example of experimental setup implemented to achieve peripheral ultrasonic stimulation (PUNS). Note the illustrations are not drawn to scale. (<b>B</b>) Illustration of the waveform strategy used to generate the PUNS-M stimulus, which elicited a brief mechanical buzzing sensation. The <i>top-black</i> trace illustrates a one volt peak-to-peak (V<sub>p-p</sub>) square-wave signal originating from channel two (CH 2) of the function generator to drive acoustic pulses. Each pulse contained 700 cycles occurring at a frequency of 0.35 MHz. This voltage waveform was fed into the input of the RF amplifier as shown in <b>A</b> above. A single ultrasound pulse emitted from the transducer is shown at <i>right</i> (MPa  =  megapascals; PD  =  pulse duration). The <i>bottom-blue</i> trace illustrates 35, five V<sub>p–p</sub> square-waves originating from channel one (CH 1) of the function generator. The signal generated by CH1 served as the pulse repetition frequency waveform and was used to trigger each CH2 pulse. (<b>C</b>) An intensity plot showing the lateral (XY) acoustic output profile from the ultrasound transducer during a PUNS-M waveform is shown using a pseudo-color look-up table. (<b>D</b>) Similar to <b>C</b>, a pseudo-color intensity plot illustrates the acoustic power delivered from the ultrasound transducer during a PUNS-M waveform as a function of lateral distance across the face of the transducer, as well as axial distance from the face of the transducer.</p>", "links"=>[], "tags"=>["pulsed", "ultrasound", "waveforms", "somatosensory"], "article_id"=>201580, "categories"=>["Physiology", "Neuroscience"], "users"=>["Wynn Legon", "Abby Rowlands", "Alexander Opitz", "Tomokazu F. Sato", "William J. Tyler"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0051177.g001", "stats"=>{"downloads"=>1, "page_views"=>20, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Design_and_delivery_of_pulsed_ultrasound_waveforms_for_somatosensory_stimulation_/201580", "title"=>"Design and delivery of pulsed ultrasound waveforms for somatosensory stimulation.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-19 19:13:11"}
  • {"files"=>["https://ndownloader.figshare.com/files/531284"], "description"=>"<p>(<b>A</b>) Grand average of ultrasound-evoked potentials (USEPs) recorded from five subjects using a 64 channel EEG in response to right (<i>black traces</i>) and left (<i>cyan traces</i>) fingertip stimulation using a PUNS-M waveform are shown in a top-view of the whole-head. The channels indicated by the <i>red square</i> are shown at a higher gain in <b>B</b>. The <i>vertical dashed lines</i> represent the onset of stimulation and the EEG traces illustrate a time period from 100 msec pre-stimulus to 1000 msec post-stimulus. (<b>B</b>) Grand average USEPs from electrode sites C3, CZ, and C4 shown in <b>A</b>, but at a higher amplitude and temporal gain. The <i>vertical dotted lines</i> show time points of interest for which average voltage maps are shown in <b>C</b> and labels (P1, N1, N2, and P2) indicate potentials of interest. (<b>C</b>) Topographic voltage maps from time-points corresponding to <i>vertical dotted lines</i> in <b>B</b> illustrate grand average USEPs obtained in response to PUNS-M stimulation of the left (<i>top</i>) and right (<i>bottom</i>) fingers.</p>", "links"=>[], "tags"=>["ultrasonic", "neurostimulation", "elicits", "ultrasound-evoked"], "article_id"=>201774, "categories"=>["Physiology", "Neuroscience"], "users"=>["Wynn Legon", "Abby Rowlands", "Alexander Opitz", "Tomokazu F. Sato", "William J. Tyler"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0051177.g002", "stats"=>{"downloads"=>2, "page_views"=>8, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Pulsed_ultrasonic_neurostimulation_elicits_ultrasound_evoked_potentials_/201774", "title"=>"Pulsed ultrasonic neurostimulation elicits ultrasound-evoked potentials.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-19 19:14:17"}
  • {"files"=>["https://ndownloader.figshare.com/files/531997"], "description"=>"<p>Summary of grouped BOLD contrast signals obtained in response to PUNS-M.</p>", "links"=>[], "tags"=>["grouped", "signals"], "article_id"=>202489, "categories"=>["Physiology", "Neuroscience"], "users"=>["Wynn Legon", "Abby Rowlands", "Alexander Opitz", "Tomokazu F. Sato", "William J. Tyler"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0051177.t002", "stats"=>{"downloads"=>2, "page_views"=>1, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Summary_of_grouped_BOLD_contrast_signals_obtained_in_response_to_PUNS_M_/202489", "title"=>"Summary of grouped BOLD contrast signals obtained in response to PUNS-M.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-19 19:18:14"}
  • {"files"=>["https://ndownloader.figshare.com/files/531567"], "description"=>"<p>Grand average fMRI BOLD responses obtained from five subjects in response to left finger (<i>red-yellow</i> LUT) and right finger (<i>blue</i>-<i>green</i> LUT) stimulation with PUNS-M waveforms (L  =  Left, R  =  right). Anatomical areas shown were significantly activated (p<0.001). The <i>yellow</i> numbers correspond to MNI slices in respective views while <i>white</i> labels indicate anatomical regions abbreviated as follows: SMg  =  supramarginal gyrus; S1  =  primary somatosensory cortex; Op  =  parietal operculum; Th  =  thalamus; aMCC  =  anterior middle cingulate cortex; Put  =  putamen; SMA  =  supplementary motor area; In  =  Insula; Cdt  =  Caudate.</p>", "links"=>[], "tags"=>["stimulates", "signals", "somatosensory", "detection"], "article_id"=>202058, "categories"=>["Physiology", "Neuroscience"], "users"=>["Wynn Legon", "Abby Rowlands", "Alexander Opitz", "Tomokazu F. Sato", "William J. Tyler"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0051177.g004", "stats"=>{"downloads"=>1, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_PUNS_M_stimulates_BOLD_contrast_signals_in_somatosensory_detection_and_discrimination_networks_/202058", "title"=>"PUNS-M stimulates BOLD contrast signals in somatosensory detection and discrimination networks.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-19 19:15:50"}
  • {"files"=>["https://ndownloader.figshare.com/files/531418"], "description"=>"<p>(<b>A</b>) Grand average current source density (CSD) traces obtained from five subjects in response to left (<i>left</i>) and right (<i>right</i>) fingertip stimulation with PUNS-M waveforms are displayed across time for C3 (<i>top</i>), CZ (<i>middle</i>), and C4 (<i>bottom</i>) electrode sites where (−) indicates current sink and (+) indicates current source. (<b>B</b>) Pseudocolor topographic CSD maps corresponding to data illustrated in <b>A</b> for left finger (<i>top panel</i>) and right finger (<i>bottom panel</i>) stimulation with PUNS-M are illustrated for times following stimulation as indicated.</p>", "links"=>[], "tags"=>["fingertips", "puns-m", "reveals"], "article_id"=>201911, "categories"=>["Physiology", "Neuroscience"], "users"=>["Wynn Legon", "Abby Rowlands", "Alexander Opitz", "Tomokazu F. Sato", "William J. Tyler"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0051177.g003", "stats"=>{"downloads"=>1, "page_views"=>16, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Stimulation_of_fingertips_with_PUNS_M_reveals_dynamic_current_sources_/201911", "title"=>"Stimulation of fingertips with PUNS-M reveals dynamic current sources.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-19 19:15:02"}
  • {"files"=>["https://ndownloader.figshare.com/files/531903"], "description"=>"<p>Psuedocolor fMRI images illustrating BOLD contrast signals (p<0.001; threshold 9 voxels) are shown for responses to PUNS-M (<i>green</i> LUT) and PUNS-T (<i>red</i> LUT) stimulation of the right index finger. Areas which were co-activated by both PUNS-M and PUNS-T are indicated by <i>yellow</i> voxels. Slice numbers shown in <i>yellow</i> text are based on MNI conventions. Anatomical areas activated are indicated by the following abbreviations: MTg  =  medial temporal gyrus; S1  =  primary somatosensory cortex; Op  =  parietal operculum; pIN  =  posterior insula; aIN  =  anterior insula; IFg  =  inferior frontal gyrus; Put  =  putamen; pMCC  =  posterior middle cingulate cortex; SMA  =  supplementary motor area; aMCC  =  anterior middle cingulate cortex; SMg  =  supramarginal gyrus.</p>", "links"=>[], "tags"=>["stimulation", "somatosensory", "circuits", "elicited", "puns", "indicated"], "article_id"=>202392, "categories"=>["Physiology", "Neuroscience"], "users"=>["Wynn Legon", "Abby Rowlands", "Alexander Opitz", "Tomokazu F. Sato", "William J. Tyler"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0051177.g006", "stats"=>{"downloads"=>2, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Differential_stimulation_of_somatosensory_brain_circuits_elicited_by_PUNS_as_indicated_by_BOLD_contrast_signals_/202392", "title"=>"Differential stimulation of somatosensory brain circuits elicited by PUNS as indicated by BOLD contrast signals.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-19 19:17:39"}
  • {"files"=>["https://ndownloader.figshare.com/files/531769"], "description"=>"<p>(<b>A</b>) Pseudocolor thermographic images taken with a calibrated infrared camera illustrate the temperature of one participants' index finger immediately following stimulation with a PUNS-M and PUNS-T waveform. (<b>B</b>) EEG traces illustrate averaged evoked potentials traces (N = 100) recorded from electrode site CZ from one participant in response to right index finger stimulation with conventional vibrotactile (<i>black trace</i>), PUNS-M (<i>blue trace</i>), and PUNS-T (<i>red trace</i>) waveforms. (<b>C</b>) Individual trial responses (N = 100) to PUNS-M (<i>top</i>) and PUNS-T (<i>bottom</i>) stimulation of the right index finger are shown in the pseudocolor raster plot with corresponding averaged EEG traces below each raster plot. (<b>D</b>) Average topographic voltage maps obtained across 100 trials are shown for one participant in response to vibrotactile (<i>left</i>), PUNS-M (<i>middle</i>), and PUNS-T (<i>right</i>) stimulation of the right fingertip. Time points for each pseudocolor voltage map obtained following stimulus onset are indicated.</p>", "links"=>[], "tags"=>["waveforms", "differentially", "somatosensory"], "article_id"=>202262, "categories"=>["Physiology", "Neuroscience"], "users"=>["Wynn Legon", "Abby Rowlands", "Alexander Opitz", "Tomokazu F. Sato", "William J. Tyler"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0051177.g005", "stats"=>{"downloads"=>3, "page_views"=>11, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_PUNS_waveforms_can_differentially_stimulate_somatosensory_circuits_/202262", "title"=>"PUNS waveforms can differentially stimulate somatosensory circuits.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-19 19:16:56"}

PMC Usage Stats | Further Information

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Relative Metric

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