Abstract: A method of controlling a neural stimulus, the neural stimulus being defined by at least one stimulus intensity parameter. The method comprises generating a stimulus intensity parameter to control a stimulator that generates a stimulus current for application to a tissue, measuring a response of the tissue, evoked by the stimulus current, determining a forward adjustment parameter as a function of the stimulus intensity parameter, determining a feedback parameter derived from the measured response and the forward adjustment parameter and adjusting the stimulus intensity parameter according to the feedback parameter.

Abstract: A method of controlling a neural stimulus, the neural stimulus being defined by at least one stimulus intensity parameter. The method comprises, generating a stimulus intensity parameter to control a stimulator that generates a stimulus current for application to a tissue, measuring a response of the tissue, evoked by the stimulus current, determining a response parameter indicative of the measured response, in response to the response parameter being less than a first threshold, setting the stimulus intensity parameter to a desired stimulus intensity level; and in response to the response parameter being greater than a second threshold, adjust the stimulus intensity parameter according to a feedback variable derived from the measured response.