Fractal analysis of acceleration signals due to swallowing

Fractal analysis of acceleration signals due to swallowing

Swallowing gives rise to a characteristic pattern of acceleration in normal subjects which is different from that of dysphagic individuals. In the past, signal parameters like mean power, mean frequency, and peak magnitude were used to characterize the signal. The question remains if fractal dimensi...

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Bibliographische Detailangaben
Hauptverfasser: Joshi, A.C., Reddy, N.P.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Acceleration
Accelerometers
Band pass filters
Brain injuries
Digital filters
Electrophysiology
Fractals
Frequency
Neural networks
Performance evaluation
Signal analysis
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Beschreibung
Zusammenfassung:Swallowing gives rise to a characteristic pattern of acceleration in normal subjects which is different from that of dysphagic individuals. In the past, signal parameters like mean power, mean frequency, and peak magnitude were used to characterize the signal. The question remains if fractal dimension can be used to characterize the signal. The purpose of the present study was to address this question. The fractal dimension was found to be 1.585/spl plusmn/0.199 for acceleration signals due to normal swallowing, and was found to be 1.238/spl plusmn/0.059 for acceleration signals due to dysphagic swallowing.
ISSN:1094-687X
0589-1019
1558-4615
DOI:10.1109/IEMBS.1999.804066