Nonlinear Analysis of Motor Activity Shows Differences between Schizophrenia and Depression: A Study Using Fourier Analysis and Sample Entropy
| العنوان: | Nonlinear Analysis of Motor Activity Shows Differences between Schizophrenia and Depression: A Study Using Fourier Analysis and Sample Entropy |
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| المؤلفون: | Fred Holsten, Erik R Hauge, Ketil J. Oedegaard, Jan Øystein Berle, Ole Bernt Fasmer |
| المصدر: | PLoS ONE PLoS ONE, Vol 6, Iss 1, p e16291 (2011) |
| بيانات النشر: | Public Library of Science (PLoS), 2011. |
| سنة النشر: | 2011 |
| مصطلحات موضوعية: | Male, Central Nervous System, Time Factors, Anatomy and Physiology, Entropy, lcsh:Medicine, Audiology, Medical disciplines: 700::Clinical medical disciplines: 750::Psychiatry, child psychiatry: 757 [VDP], Standard deviation, lcsh:Science, Psychiatry, Movement Disorders, Multidisciplinary, Fourier Analysis, Depression, Middle Aged, Mental Health, Neurology, Fourier analysis, Observational Studies, symbols, Medicine, Female, Period length, Research Article, Nervous System Physiology, Adult, medicine.medical_specialty, Clinical Research Design, Neurophysiology, Motor Activity, Biology, Neurological System, Young Adult, symbols.namesake, medicine, Humans, In patient, Motor activity, Aged, Motor Systems, Mood Disorders, lcsh:R, Case-control study, Sample entropy, Nonlinear Dynamics, Case-Control Studies, Schizophrenia, lcsh:Q, Physiological Processes, Chronobiology, Neuroscience |
| الوصف: | The purpose of this study has been to describe motor activity data obtained by using wrist-worn actigraphs in patients with schizophrenia and major depression by the use of linear and non-linear methods of analysis. Different time frames were investigated, i.e., activity counts measured every minute for up to five hours and activity counts made hourly for up to two weeks. The results show that motor activity was lower in the schizophrenic patients and in patients with major depression, compared to controls. Using one minute intervals the depressed patients had a higher standard deviation (SD) compared to both the schizophrenic patients and the controls. The ratio between the root mean square successive differences (RMSSD) and SD was higher in the schizophrenic patients compared to controls. The Fourier analysis of the activity counts measured every minute showed that the relation between variance in the low and the high frequency range was lower in the schizophrenic patients compared to the controls. The sample entropy was higher in the schizophrenic patients compared to controls in the time series from the activity counts made every minute. The main conclusions of the study are that schizophrenic and depressive patients have distinctly different profiles of motor activity and that the results differ according to period length analysed. publishedVersion |
| وصف الملف: | application/pdf |
| تدمد: | 1932-6203 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40a2bd4ff146162b2374195e387436aaTest https://doi.org/10.1371/journal.pone.0016291Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....40a2bd4ff146162b2374195e387436aa |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19326203 |
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