Relationship of activity in ascending paths with phase encoding in the lumbar spinal cord

  • O. O. Shugurov Oles’ Honchar Dnipropetrovsk National University


We studied the relationship of discharges phase characteristics in ascending column of spinal cord (SC) and specificity of activation of neurones, which generate negative components of evoked potentials of SC. The discharges was recorded from SC at a level of a presence of dorsal column (DC), spinocervical and dorsal spinocerebellar tract in upper lumbar and thoracic segments at a stimulation of a nerve or DC. It is shown, that the phase of the discharges depends on the quantity of synaptic delays in generating chain of such signals. Thus, the phase of a signal can carry the additional information on specificity of activation of the sensory elements in CNS.


Залманзон Л. А. Преобразования Фурье, Уолша, Хаара и их применение в управлении связи и других областях. – М. : Наука, 1989. – 496 с.

Шугуров О. А. Вызванные потенциалы спинного мозга / О. А. Шугуров, О. О. Шугуров. – Днепропетровск : Наука і освіта, 2006. – 319 с.

Шугуров О. О. Применение упреждающего усреднения при исследовании вызванных потенциалов мозга / О. О. Шугуров, О. А. Шугуров // Физиология человека (Росс.). – 2006. – Т. 32, № 5. – С. 619–622.

Шугуров О. О. Фазовая модуляция импульсных потоков на спинальном уровне // Динамика сложных систем (Москва). – 2010. – Т. 4, № 2. – С. 29–38.

Astrocytes derived from glial-restricted precursors promote spinal cord repair / J. E. Davies, C. Huang, C. Proschel et al. // J. Biol. – 2006. – Vol. 5, N 3. – P. 7. >>doi: 10.1186/jbiol35

Craven J. Major ascending and descending tracts in the spinal cord // Anaesthesia Intensive Care Medicine. – 2007. – Vol. 6, N 1. – P. 1.

Encoding and decoding cortical representations of tactile features in the vibrissa system / A. R. Boloori, R. A. Jenks, G. Desbordes et al. // J. Neurosci. – 2010. – Vol. 30, N 30. – Р. 9990–10005. >>doi: 10.1523/JNEUROSCI.0807-10.2010

Jankowska E. Interneuronal activity in reflex pathways from group II muscle afferents is monitored by dorsal spinocerebellar tract neurons in the cat / E. Jankowska, A. Puczynska // J. Neurosci. – 2008. – Vol. 28, N 14. – Р. 3615–3622. >>doi: 10.1523/JNEUROSCI.0466-08.2008

Krutki P. Do premotor interneurons act in parallel on spinal motoneurons and on dorsal horn spinocerebellar and spinocervical tract neurons in the cat? / P. Krutki, S. Jelen, E. Jankowska // J. Neurophysiol. – 2011. – Vol. 105, N 4. – Р. 1581–1593. >>doi: 10.1152/jn.00712.2010

Neuronal and non-neuronal modulation of sympathetic neurovascular transmission / H. Macarthur, G. H. Wilken, T. C. Westfall, L. L. Kolo // Acta Physiologica. – 2011. – Vol. 203, N 1. – Р. 37–45. >>doi: 10.1111/j.1748-1716.2010.02242.x

Role of local network oscillations in resting-state functional connectivity / J. Cabral, E. Hugues, O. Sporns, G. Deco // Neuroimage. – 2011. – Vol. 57, N 1. – Р. 130–139. >>doi: 10.1016/j.neuroimage.2011.04.010

Ruling out and ruling in neural codes / A. L. Jacobs, G. Fridman, R. M. Douglas et al. // Proc. Nation. Acad. Sciences USA. – 2009. – Vol. 106, N 14. – Р. 5936–5941. >>doi: 10.1073/pnas.0900573106

Spinocerebellar projections from the cervical and lumbosacral enlargements in the chicken spinal cord / M. Furue, S. Uchida, A. Shinozaki et al. // Brain Behav. Evol. – 2010. – V. 76, N 3–4. – Р. 271–278. >>doi: 10.1159/000321910

Tracey D. J. Ascending and descending pathways in the spinal cord // Spinal Cord. – 2004.– Vol. 57. – P. 149–164.

Trajectories in the spinal cord and the mediolateral spread in the cerebellar cortex of spinocerebellar fibers from the unilateral lumbosacral enlargement in the chicken / M. Furue, S. Uchida, A. Shinozaki et al. // Brain Behav. Evol. – 2011. – Vol. 77, N 1. – P. 45–54. >>doi: 10.1159/000323380

How to Cite
Shugurov, O. O. (2012). Relationship of activity in ascending paths with phase encoding in the lumbar spinal cord. Regulatory Mechanisms in Biosystems, 3(1), 140-145.