[The functional plasticity of the cells of the paraventricular nucleus in surviving slices of the hypothalamus].

In surviving cuts of the hypothalamus, stimulation of the supraoptic nucleus induced focal potentials in the paraventricular nucleus. A repeated stimulation was followed by a reduction of the descending of the focal potentials. Tetanization of the supraoptic nucleus induced an additional wave at the descending phase of focal potentials preserving for 15 min. The data obtained suggest a functional plasticity of the hypothalamus paraventricular nucleus' cells.