An implantable neuromodulation system is provided comprising at least one stimulation microelectrode, at least one microelectrode, and a frequency-shaping amplifier (FSA). The at least one stimulation microelectrode is configured to deliver a desired electrical stimulation to a neuronal population. The at least one recording microelectrode is configured to receive neural signals from the neuronal population. The FSA is coupled to the at least one recording microelectrode. The FSA is configured to allow for simultaneous electrical recording and electrical stimulation of the neuronal population.
