Coupling of Oxy- and Deoxyhemoglobin concentrations with EEG rhythms during motor task
| Autor: | Dariusz Janusek, Daniel Milej, Katarzyna J. Blinowska, Piotr Lachert, Przemyslaw Pulawski, Adam Liebert |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Adult
Male medicine.medical_specialty Haemodynamic response Movement Alpha (ethology) Hemodynamics lcsh:Medicine Audiology Electroencephalography 050105 experimental psychology Article Fingers 03 medical and health sciences Hemoglobins 0302 clinical medicine Rhythm medicine Humans 0501 psychology and cognitive sciences Beta (finance) lcsh:Science Multidisciplinary Spectroscopy Near-Infrared medicine.diagnostic_test business.industry 05 social sciences lcsh:R Brain Waves Coupling (electronics) Electrophysiology Oxyhemoglobins Neurovascular Coupling lcsh:Q Female Sensorimotor Cortex business 030217 neurology & neurosurgery |
| Zdroj: | Scientific Reports Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017) |
| ISSN: | 2045-2322 |
| Popis: | A relationship between the brain rhythmic activity and the hemodynamic response was studied using the simultaneous measurement of electroencephalogram (EEG) and the functional near-infrared spectroscopy (fNIRS) during a motor task (self-paced right finger movements) for 10 subjects. An EEG recording with a 32-electrode (10-10) system was made and the hemodynamic response was obtained using 8 optodes placed over the sensorimotor cortex on both hemispheres. During the task an increase in oxyhemoglobine (HbO) was accompanied by a decrease in deoxyhemoglobine (HbR) concentration and a decrease in amplitudes (desynchronisation) of alpha (8–13 Hz) and beta (13–30 Hz) EEG rhythms. These phenomena were prominent in the hemisphere contralateral to the moving finger. The delays between the hemodynamic and electrophysiological variables were on average 2.8 s. Highly significant (p 2 = −0.69) and HbO and beta (r2 = −0.54) rhythms. Positive correlations r2 = 0.5 between these rhythms and HbR were found. |
| Databáze: | OpenAIRE |
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