The thalamic fasciculus is a component of the subthalamus. It is sometimes considered synonymous with 'field H1 of Forel'. Nerve fibres forming a composite bundle containing cerebellothalamic (crossed) and pallidothalamic (uncrossed) fibres that is insinuated between the thalamus and zona incerta. The thalamic fasciculus consists of the joint fibers of the ansa lenticularis and the lenticular fasciculus, coming from different portions of the medial globus pallidus, before they jointly enter the ventral lateral nucleus of the thalamus. [ http://en.wikipedia.org/wiki/Thalamic_fasciculus ]