Visual and automatic cyclic alternating pattern (CAP) scoring
The classification of short duration events in the EEG during sleep, as the A stage of the cyclic alternating pattern (CAP) is a tedious and error prone task. The number of events under normal conditions is large (several hundreds), and it is necessary to mark the limits of the events with precision...
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| Format: | Article |
| Language: | English |
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Thieme Revinter Publicações
2006-09-01
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| Series: | Arquivos de Neuro-Psiquiatria |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2006000400008&tlng=en |
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| _version_ | 1849699365800640512 |
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| author | Agostinho Rosa Gabriela Rodrigues Alves Magneide Brito Maria Cecília Lopes Sérgio Tufik |
| author_facet | Agostinho Rosa Gabriela Rodrigues Alves Magneide Brito Maria Cecília Lopes Sérgio Tufik |
| author_sort | Agostinho Rosa |
| collection | DOAJ |
| description | The classification of short duration events in the EEG during sleep, as the A stage of the cyclic alternating pattern (CAP) is a tedious and error prone task. The number of events under normal conditions is large (several hundreds), and it is necessary to mark the limits of the events with precision, otherwise the time sensitive classification of the CAP phases (A and B) and specially the scoring of different types of A phases will be compromised. The objective of this study is to verify the feasibility of visual CAP scoring with only one channel of EEG, the evaluation of the inter-scorer agreement in a variety of recordings, and the comparison of the visual scorings with a known automatic scoring system. Sixteen hours of one channel (C4-A1 or C3-A2) of NREM sleep were extracted from eight whole night recordings in European Data Format and presented to the different scorers. The average inter-scorer agreement for all scorers is above 70%, the pair wise inter-scorer agreement found was between 69% up to 77.5%. These values are similar to what has been reported in different type studies. The automatic scoring system has similar performance of the visual scorings. The study also has shown that it is possible to classify the CAP using only one channel of EEG. |
| format | Article |
| id | doaj-art-373f575d45d6450394c7ea5d1a7d6037 |
| institution | DOAJ |
| issn | 1678-4227 |
| language | English |
| publishDate | 2006-09-01 |
| publisher | Thieme Revinter Publicações |
| record_format | Article |
| series | Arquivos de Neuro-Psiquiatria |
| spelling | doaj-art-373f575d45d6450394c7ea5d1a7d60372025-08-20T03:18:37ZengThieme Revinter PublicaçõesArquivos de Neuro-Psiquiatria1678-42272006-09-01643a57858110.1590/S0004-282X2006000400008Visual and automatic cyclic alternating pattern (CAP) scoringAgostinho Rosa0Gabriela Rodrigues Alves1Magneide Brito2Maria Cecília Lopes3Sérgio Tufik4ISRUniversidade Federal de São PauloUniversidade Federal de São PauloISRUniversidade Federal de São PauloThe classification of short duration events in the EEG during sleep, as the A stage of the cyclic alternating pattern (CAP) is a tedious and error prone task. The number of events under normal conditions is large (several hundreds), and it is necessary to mark the limits of the events with precision, otherwise the time sensitive classification of the CAP phases (A and B) and specially the scoring of different types of A phases will be compromised. The objective of this study is to verify the feasibility of visual CAP scoring with only one channel of EEG, the evaluation of the inter-scorer agreement in a variety of recordings, and the comparison of the visual scorings with a known automatic scoring system. Sixteen hours of one channel (C4-A1 or C3-A2) of NREM sleep were extracted from eight whole night recordings in European Data Format and presented to the different scorers. The average inter-scorer agreement for all scorers is above 70%, the pair wise inter-scorer agreement found was between 69% up to 77.5%. These values are similar to what has been reported in different type studies. The automatic scoring system has similar performance of the visual scorings. The study also has shown that it is possible to classify the CAP using only one channel of EEG.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2006000400008&tlng=encyclic alternating patternCAPsleepvisual scoringautomatic scoring |
| spellingShingle | Agostinho Rosa Gabriela Rodrigues Alves Magneide Brito Maria Cecília Lopes Sérgio Tufik Visual and automatic cyclic alternating pattern (CAP) scoring Arquivos de Neuro-Psiquiatria cyclic alternating pattern CAP sleep visual scoring automatic scoring |
| title | Visual and automatic cyclic alternating pattern (CAP) scoring |
| title_full | Visual and automatic cyclic alternating pattern (CAP) scoring |
| title_fullStr | Visual and automatic cyclic alternating pattern (CAP) scoring |
| title_full_unstemmed | Visual and automatic cyclic alternating pattern (CAP) scoring |
| title_short | Visual and automatic cyclic alternating pattern (CAP) scoring |
| title_sort | visual and automatic cyclic alternating pattern cap scoring |
| topic | cyclic alternating pattern CAP sleep visual scoring automatic scoring |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2006000400008&tlng=en |
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