PMID- 1922563
OWN - NLM
STAT- MEDLINE
DCOM- 19911120
LR  - 20071115
IS  - 0028-2561 (Print)
IS  - 0028-2561 (Linking)
VI  - 23
IP  - 4
DP  - 1991
TI  - [The background impulse activity of the neurons of the nucleus fastigii in the 
      rat cerebellum].
PG  - 441-50
AB  - Background impulse activity (BIA) of fastigial nucleus (NF) of the rat cerebellum 
      has been analyzed. Prevalence of stationary impulse flows (IFs) and their 
      irregularity of various types are found out, regular components of IF occurring 
      frequently. Nonstationary IFs are detected as well, but they are studied only in 
      15% of a total number of units. A serial correlation analysis of duration of 
      interspike intervals (ISIs) in case of stationary IFs and nonstationary ones 
      permits stating six main varieties of ISI dynamics: 1) independent accidental 
      distribution of impulse sequences; 2) irregular changes (acceleration or 
      deceleration) of IF rate with positive correlation coefficients (CCs) in a range 
      of initial five ISI orders; 3) irregular appearance of combined short and long 
      intervals with negative CC in neighbouring ISIs; 4) periodic changes of IF rate, 
      in particular, as grouped discharges varying in total duration and frequencies (4 
      and 5 IF varieties); 5) in case of negative values of CCs of the first order the 
      recorded IFs in the primary complex serial correlograms have been determined as 
      the 5th dynamic variant; and, finally, 6) prolonged cycles of BIA acceleration or 
      deceleration with positive CCs up to 10-20 and higher orders. One third of NF 
      units recorded have other BIA variations with the characteristics similar to 
      types 2-3 and 6 mentioned above. They are considered to be induced by various 
      correlations existing also at high-order ISIs. Formation of IFs registered and 
      their pattern changes can serve as an adequate index of current state of cellular 
      activity recorded extracellularly from small size cells of the CNS.
FAU - Amatuni, A S
AU  - Amatuni AS
FAU - Sarkisian, R Sh
AU  - Sarkisian RSh
FAU - Korkotian, E A
AU  - Korkotian EA
FAU - Melikian, A K
AU  - Melikian AK
LA  - rus
PT  - English Abstract
PT  - Journal Article
TT  - Fonovaia impul'snaia aktivnost' neironov fastigial'nogo iadra mozzhechka krysy.
PL  - Ukraine
TA  - Neirofiziologiia
JT  - Neirofiziologiia = Neurophysiology
JID - 0231364
SB  - IM
MH  - Action Potentials/physiology
MH  - Animals
MH  - Cerebellar Nuclei/*physiology
MH  - Membrane Potentials/physiology
MH  - Microelectrodes
MH  - Neurons/*physiology
MH  - Rats
MH  - Statistics as Topic
EDAT- 1991/01/01 00:00
MHDA- 1991/01/01 00:01
CRDT- 1991/01/01 00:00
PHST- 1991/01/01 00:00 [pubmed]
PHST- 1991/01/01 00:01 [medline]
PHST- 1991/01/01 00:00 [entrez]
PST - ppublish
SO  - Neirofiziologiia. 1991;23(4):441-50.