Somatosensory evoked potentials were performed in 38 patients with traumatic spine pre, per and postoperatively. In 3 cases, the S.E.Ps altered before surgery, were improved after decompression and reduction. This S.E.Ps improvement was associated to clinical improvement. Even though this study was carried out on few cases, it shows prognosis and diagnosis value of intraoperative S.E.Ps in traumatic spine surgery.
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Sci Rep
March 2025
Neurocomputation and Neuroimaging Unit, Freie Universität Berlin, Habelschwerdter Allee 45, 14195, Berlin, Germany.
The neural correlates of conscious somatosensory perception are usually investigated using threshold detection tasks. However, it is largely unclear how other aspects of conscious somatosensory experience, such as localization, discrimination, and identification, are processed in the brain. Here, we go beyond mere stimulus detection and analyze the EEG data of 34 participants to investigate the event-related potential correlates of somatosensory experience in a temporal discrimination task.
View Article and Find Full Text PDFCase Rep Oncol Med
February 2025
Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Tumors infiltrating the precentral gyrus remain a unique operative challenge. In this study, we explored a novel approach for awake craniotomy involving a patient playing a drum pad during resection of low-grade glioma, with the use of preoperative navigated transcranial magnetic stimulation (nTMS)-generated diffusion tensor imaging (DTI) and high-density real-time electrocorticography (ECoG). A 36-year-old left-handed male with a low-grade glioma in the left hemisphere hand knob region had a grand mal seizure.
View Article and Find Full Text PDFAnnu Int Conf IEEE Eng Med Biol Soc
July 2024
Sensory feedback is of vital importance in motor control, yet is rarely studied in diseases which frequently result in motor deficiency, such as hemiparetic stroke. This study employs the laterality index (LI) of somatosensory evoked potentials (SEPs) to investigate whether sensory feedback is altered in hemiparetic stroke during movements of the paretic arm, with a hemispheric shift from the lesioned hemisphere toward contralesional hemisphere. Through experimental design involving the isometric lifting of the paretic arms during tactile finger stimulation and the analysis of LI in SEPs P50 and N100, we found: 1) increased contralesional sensory activity in stroke participants when they are receiving sensory input in their paretic hand for both P50 and N100 and 2) the contralesional N100 activity is enhanced when stroke participants are performing an isometric arm lifting task.
View Article and Find Full Text PDFAnnu Int Conf IEEE Eng Med Biol Soc
July 2024
Brain-computer interface (BCI) is emerging as an effective complementary solution in the field of rehabilitation for the interaction between patients and robotic assistive devices. Specifically, the somatosensory event-related potentials (ERP) BCI has unique advantage for post-stroke motor rehabilitation scenarios and has been proven feasible on healthy subjects. We conducted the first patient-involved somatosensory ERP-BCI experiment with electric stimulation to evaluate its feasibility for real-world clinical usage.
View Article and Find Full Text PDFAnnu Int Conf IEEE Eng Med Biol Soc
July 2024
Chronically implanted microelectrodes face adverse biological responses and various kinds of device failure. To overcome these challenges, a cranial window was developed allowing repeated access to the primary somatosensory cortex (S1) of the pig. This study evaluated the reliability of the signals recorded using repeated temporary placement of a micro-electrocorticography (µECoG) array via a cranial window.
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