[The effect of cerebellectomy on motor activity of the stomach in the ray Dasyatis pastinaca].

It has been shown that after cerebellectomy in rays, motor activity of the stomach undergoes significant changes. From the 1st day after the operation, the frequency of stomach contractions diminishes from 8.30+/-0.46 to 6.30+/-0.50/15 min. Individual variability markedly increases. The amplitude of stomach contractions is also diminished. Sham cerebellectomy does not affect neither the frequency, nor the amplitude of stomach contractions.