دورية أكاديمية
[Changes in the intragastric contents during sleep affect the statistical characteristics of the neuronal activity in cerebral cortex].
| العنوان: | [Changes in the intragastric contents during sleep affect the statistical characteristics of the neuronal activity in cerebral cortex]. |
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| المؤلفون: | Pigarev IN, Bibikov NG, Busygina II |
| المصدر: | Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova [Ross Fiziol Zh Im I M Sechenova] 2014 Jun; Vol. 100 (6), pp. 722-35. |
| نوع المنشور: | English Abstract; Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | Russian |
| بيانات الدورية: | Publisher: Nauka Country of Publication: Russia (Federation) NLM ID: 9715665 Publication Model: Print Cited Medium: Print ISSN: 0869-8139 (Print) Linking ISSN: 08698139 NLM ISO Abbreviation: Ross Fiziol Zh Im I M Sechenova Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: S.-Peterburg : Nauka Original Publication: Sankt-Peterburg : "Nauka", c1997- |
| مواضيع طبية MeSH: | Evoked Potentials, Somatosensory/*physiology , Neurons/*physiology , Somatosensory Cortex/*physiology, Animals ; Cats ; Electroencephalography ; Gastric Fistula ; Sleep, REM/physiology ; Stereotaxic Techniques ; Stomach/drug effects ; Stomach/innervation ; Stomach/physiology ; Wakefulness/physiology ; Water/administration & dosage |
| مستخلص: | Firing activity in somatosensory cortical area was analyzed in cats during slow wave sleep. Statistical characteristics of the background activity were calculated before and after changes of the intragastric contents (introduction of 50 ml of water into stomach). This procedure did not affect the depth of sleep. There were no changes of the mean firing frequency and the local variation coefficients. To evaluate the degree of chaos in neuronal firing before and after changes of the intragastric contents, the dependence of the Fano factor from the length of the intervals of analysis was calculated. This dependence before water infusion for 40 neurons expressed as a power function with index of power > 0.2 what indicated on fractal nature of the background activity. The changes of the gastric contents in 18 neurons lead to considerable changes of the indexes of power of this function. It is known that in wakefulness for cortical neurons these indexes are dependent on the specific sensory stimulation. Thus, our results can be considered as an indication that during slow wave sleep signals from stomach are included in the afferent flow to the cortical areas, which in wakefulness are involved in somatosensory functions. |
| المشرفين على المادة: | 059QF0KO0R (Water) |
| تواريخ الأحداث: | Date Created: 20150211 Date Completed: 20150303 Latest Revision: 20161020 |
| رمز التحديث: | 20231215 |
| PMID: | 25665397 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 0869-8139 |
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