[TA] small groups of cells distributed along the course of, and insinuated within, pallidofugal fibers that form the lenticular fasciculus (nucleus of ventral field [TA], and nucleus campi ventralis [TA], nucleus of field H2), that arch through the prerubral field (nucleus of medial field [TA], nucleus campi medialis [TA], and nucleus of field H), and the thalamic fasciculus (nucleus of dorsal field [TA], nucleus campi dorsalis [TA], and nucleus of field H1).fields of Forel, under field. SYN: nuclei camporum perizonalium [TA].