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Changes in frequency content of inspiratory neuron and nerve activities in the course of inspiration
C N Christakos1, M I Cohen, W R See
1Department of Physiology and Biophysics, Albert Einstein College of Medicine, Bronx, NY 10461.
Abstract:
In decerebrate paralyzed cats, the spectra and coherences of inspiratory (I) nerve activities and of medullary I neuron discharges were compared between different stages of I. The correlated high-frequency oscillations (HFOs) in the activities had common time courses of frequency and strength, which were influenced by lung afferent input; whereas the time courses for the uncorrelated medium-frequency oscillations (MFOs) depended on individual activity patterns. These results indicate that HFOs are characteristic of the common I pattern generator, whereas MFOs are specific to individual activities.
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