A stimulation apparatus, in particular for a human heart, has a stimulation unit,
a signal detector and a control unit. The stimulation unit is adapted to deliver
a stimulation pulse having a pulse duration, a pulse strength and a stimulation
intensity. The signal detector is adapted to detect stimulation success on the
basis of a picked-up signal. The control unit is connected to the stimulation unit
and to the signal detector. It is designed such that the stimulation intensity
varies depending upon the picked-up signal. A time-determining unit is provided
that is at least indirectly connected to the control unit and with which a time
difference between the delivery of a stimulation pulse and the pick-up of the picked-up
signal or a signal feature of the picked-up signal can be detected.
