A high-level auditory-cortical region was recently identified with functional magnetic resonance imaging (fMRI) in rhesus monkeys. This brain region shows a close functional correspondence to the so called human-voice region. Both human and monkey “voice” regions lie anterior and superior on the temporal lobe and appear to be exquisitely sensitive to certain vocal components in species-specific vocalizations that help to identify other conspecific members of the species. To clarify the in-vivo functional connectivity of the rhesus monkey voice region along with its putative auditory cortical network we used microstimulation in combination with high-resolution fMRI. First we functionally localized the voice region with bloodoxygen- level-dependent (BOLD) fMRI, as previously described. Then we microstimulated this region with glasscoated iridium microelectrodes, using biphasic, cathode leading, 250 to 500 μA pulses of 200 μs duration. We used the fMRI BOLD response to evaluate the anterograde targets of the microstimulation site. Microstimulation of the voice region, which lies on the rostral superior-temporal p