Relationship between Power Spectra of the Awake EEG and Psychomotor Activity Patterns Measured by Short-Term Actigraphy
| Autor: | Johannes Tauscher, Edda Pjrek, Otto Presslich, Lukas Pezawas, Siegfried Kasper, Dietmar Winkler |
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| Rok vydání: | 2003 |
| Předmět: |
Male
medicine.medical_specialty Brain activity and meditation media_common.quotation_subject Electroencephalography Audiology Arousal Benzodiazepines medicine Humans Spectral analysis Motor activity Wakefulness Biological Psychiatry media_common Psychomotor learning Brain Mapping medicine.diagnostic_test Mental Disorders Brain Actigraphy Middle Aged Psychiatry and Mental health Neuropsychology and Physiological Psychology Female Psychology Neuroscience Psychomotor Performance Vigilance (psychology) |
| Zdroj: | Neuropsychobiology. 48:176-181 |
| ISSN: | 1423-0224 0302-282X |
| DOI: | 10.1159/000074634 |
| Popis: | Actigraphy is a quantitative method for the measurement of motor activity. In the present study, actigraphy was used to examine psychomotor correlates of brain activity. Thirty-four psychiatric patients (17 males and 17 females) with different diagnoses participated in this investigation. Directly after EEG recording, motor activity was measured with a wrist actimeter for 15 min in patients in the sitting position. The EEG was quantified by spectrum analysis, and the power spectra as well as other EEG-derived variables were correlated with actigraphic parameters. Occipital and temporoparietal β1 power was statistically significantly higher in patients with higher activity scores and lower in those with a high density of sleep (SB) or wake bouts (WB). A high density of SB or WB was also positively correlated with higher mean α power. Immobile phases measured by actigraphy were positively associated with occipital α and with frontal/frontopolar δ activity, preferentially on the side of the left hemisphere. Our results, while preliminary, suggest that short-term actigraphy may be apt to reflect central nervous system arousal. |
| Databáze: | OpenAIRE |
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