Ventricular escape beats differ from ventricular extrasystoles (or premature ventricular contractions), which are spontaneous electrical discharges of the ventricles.

Galactorrhea is one type of spontaneous nipple discharge and may be a side effect of a medication or caused by a noncancerous tumor in the pituitary gland (pituitary adenoma), decreased thyroid function (hypothyroidism), or certain types of cancer.

Contrariwise, pseudoperceptions, ranging from crude, unformed noises and flashes of light through to complex scenes with accompanying meanings and emotions, can be generated by spontaneous discharges of the brain or in the laboratory by stimulating electrodes.

Infrasound sensitive fibers have very high rates of spontaneous discharge, with a mean of 115imp/s, which is much higher than the spontaneous discharge of other auditory fibers.

Do you have nipple discharge that comes out without squeezing the nipple (spontaneous discharge)?

Discharge or bleeding from the nipple that comes out without squeezing the nipple (spontaneous discharge).

If a spontaneous fall occurs in this background discharge, a further electric shock causes the frequency to rise again several minutes or more; conversely, training to reduce the spontaneous discharge may also be accomplished.

"We are experiencing a spontaneous discharge," Tuvok announced flatly.

The distance between the electrodes is such that a spontaneous discharge does not occur.

For example, a single spontaneous electric discharge establishes a persistent pattern of constructive interference (quantum entanglement, rapport) between the DNA molecules of a tadpole's head and thus creates the face of a frog.