An apparatus (100) is described which comprises at least one measuring unit (31-34) for recording test signals from neurons, a generator unit (10) for generating electrical stimulation signals in accordance with the test signals, and a plurality of stimulation units (11-14) that are connected to the generator unit (10). The stimulation units (11-14) stimulate a plurality of neural networks in a deferred manner by means of the stimulation signals and thus induce a deferred activity in the stimulated neural networks.
