19 research outputs found
Human primary somatosensory cortex is differentially involved in vibrotaction and nociception
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Tabletâbased electroencephalography diagnostics for patients with epilepsy in the West African Republic of Guinea
Background and purposeEpilepsy is most common in lower-income settings where access to electroencephalography (EEG) is generally poor. A low-cost tablet-based EEG device may be valuable, but the quality and reproducibility of the EEG output are not established.MethodsTablet-based EEG was deployed in a heterogeneous epilepsy cohort in the Republic of Guinea (2018-2019), consisting of a tablet wirelessly connected to a 14-electrode cap. Participants underwent EEG twice (EEG1 and EEG2), separated by a variable time interval. Recordings were scored remotely by experts in clinical neurophysiology as to data quality and clinical utility.ResultsThere were 149 participants (41% female; median age 17.9 years; 66.6% â€21 years of age; mean seizures per month 5.7 ± SD 15.5). The mean duration of EEG1 was 53 ± 12.3 min and that of EEG2 was 29.6 ± 12.8 min. The mean quality scores of EEG1 and EEG2 were 6.4 [range, 1 (low) to 10 (high); both medians 7.0]. A total of 44 (29.5%) participants had epileptiform discharges (EDs) at EEG1 and 25 (16.8%) had EDs at EEG2. EDs were focal/multifocal (rather than generalized) in 70.1% of EEG1 and 72.5% of EEG2 interpretations. A total of 39 (26.2%) were recommended for neuroimaging after EEG1 and 22 (14.8%) after EEG2. Of participants without EDs at EEG1 (n = 53, 55.8%), seven (13.2%) had EDs at EEG2. Of participants with detectable EDs on EEG1 (n = 23, 24.2%), 12 (52.1%) did not have EDs at EEG2.ConclusionsTablet-based EEG had a reproducible quality level on repeat testing and was useful for the detection of EDs. The incremental yield of a second EEG in this setting was ~13%. The need for neuroimaging access was evident
Pressure Pain Thresholds Increase after Preconditioning 1 Hz Repetitive Transcranial Magnetic Stimulation with Transcranial Direct Current Stimulation
Automatic classification of communication logs into implementation stages via text analysis
Transcranial magnetic stimulation facilitates neurorehabilitation after pediatric traumatic brain injury
Herkunft numerischer und struktureller Aberrationen des X-Chromosoms
Nachdem 1956 durch Tjio und Levan die Darstellung der Metaphasenchromosomen eingefĂŒhrt worden war, wurden in kurzer Folge ab 1959 verschiedene menschliche Aneuploidien als Ursache hĂ€ufiger und z.T. bereits vorher bekannter klinischer Syndrome entdeckt (47,XXY als Ursache des Klinefelter-Syndroms: Jacobs u. Strong 1959; Trisomie 21 beim Down-Syndrom: Lejeune et al. 1959; 45,X als Basis des Turner-Syndroms: Ford et al. 1959). SpĂ€ter stellte sich heraus, daĂ fast die HĂ€lfte der Patienten mit den klinischen Befunden des Turner-Syndroms 46 Chromosomen besitzt, aber entweder ein Mosaik oder eine strukturelle Aberration eines X-Chromosoms oder beides aufweist (Schmid et al. 1974)