Cortical activity during hypoxic hyperventilation

• Autorzy: Pokorski M. , Trojecka A. , Marczak M. , Wierzbicka A. , Jernajczyk W.
• Języki publikacji: EN

Abstrakty

EN

This study seeks to determine the pattern of electroencephalogram changes during stimulatory ventilatory responses to acute progressive hypoxia. Electroencephalograms were recorded in the 10-20 electrode system during progressive poikilocapnic hypoxic tests based on the rebreathing routine. Healthy subjects were used for he study. A major finding was that hypoxia decreased the power spectra of the alpha activity. The decrease was surprisingly rapid and greater at mild hypoxic desaturation when pulmonary ventilation was about to pick up than during the maximum hypoxic hyperventilation. The possible relation of hypoxic decline in brain bioactivity to the manifestation of hypoxic hyperventilation remains to be elucidated in further studies.

Słowa kluczowe

EN

electroencephalogram change; hypoxic hyperventilation; hyperventilation; cortical activity; arterial oxygen saturation; stimulatory ventilatory response; hypoxia

• Wydawca: -
• Czasopismo: Journal of Physiology and Pharmacology. Supplement
• Rocznik: 2003
• Tom: 54
• Numer: 1
• Opis fizyczny: p.29-34,fig.,ref.

Twórcy

autor

Pokorski M.

• Polish Academy of Sciences, Warsaw, Poland

autor

Trojecka A.

autor

Marczak M.

autor

Wierzbicka A.

autor

Jernajczyk W.