part of part of connects connects globus pallidus subthalamic nucleus fasciculus of brain forebrain ipsilateral fiber tracts subthalamic fasciculus subthalamic fasciculus subthalamic fascicle neuronames:2280 FMA:77525 SCTID:369187003 DHBA:12089 HBA:265505350 fasciculus subthalamicus MBA:317 UBERON:0022256 Wikipedia:Subthalamic_fasciculus The subthalamic fasciculus is a tract which connects the subthalamic nucleus and the globus pallidus. It is a bidirectional connection between the GP and the subthalamic nucleus, including (1) fibers running from the GPe to the subthalamic nucleus, and (2) fibers running from the STN back to the GP.