STIMULI is a program which can gererate electrical an mechanical stimuli ant the according digital trigger signals. Since Stimuli is able to calculate a control loop for a dynamic measurement of reflexes, some interaction between the IMAGO Record module and STIMULI is provided. To be able to use the control loop functionality, the IMAGO Record PC and the STIMULI PC need a network connection via switch. In addition, the installation of Microsoft Network is necessary on both computers. The subnet masks must be identical both computers and the IP addresses must be within the same range outside the subnet mask. A basic test of the network setting is to enable the file access on both computers and view the explorer entries: Network -> Global Network -> Microsoft Windows Network -> Workgroup. To activate the control loop, STIMULI needs the network name of the record computer. Afterwards, STIMULI shows a green LED if the communication is established. Control Loop Mechanism STIMULI generates a pulse for the reflex stimulation and an according digital trigger signal. IMAGO Record records the resulting reflex and plots the new signal piece in the online processing window. If more than one trigger condition should be controlled, choose the trigger number -1 in the Setup window. This ensures that all digital triggers are written to the same online processing window and a reflex size is calculated for all triggers. Check the H-cursors and the M-cursors so that the reflexes occur within these lines. As soon as a new signal piece is input to the online processing window, the reflex sizes are calculated and automatically sent to STIMULI. There the size of the next stimulus is calculated to keep the reflex size constant.