Journal
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
Volume 78, Issue 3, Pages 191-207Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.cmpb.2005.02.006
Keywords
pattern recognition; artificial neural networks; EEG; sleep spindles
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An artificial neural network (ANN) based on the Multi-Layer Perceptron (MLP) architecture is used for detecting steep spindles in band-pass filtered electroencephalograms (EEG), without feature extraction. Following optimum classification schemes, the sensitivity of the network ranges from 79.2% to 87.5%, while the false positive rate ranges from 3.8% to 15.5%. Furthermore, due to the operation of the ANN on time-domain EEG data, there is agreement with visual assessment concerning temporal resolution. Specifically, the total inter-spindle interval duration and the total duration of spindles are calculated with 99% and 92% accuracy, respectively. Therefore, the present method may be suitable for investigations of the dynamics among successive inter-spindle intervals, which could provide information on the role of spindles in the steep process, and for studies of pharmacological effects on steep structure, as revealed by the modification of total spindle duration. (c) 2005 Elsevier Ireland Ltd. All rights reserved.
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