| List of regions which send connections to: PIR |
|
| Main olfactory bulb (MOB) |
| Accessory olfactory bulb (AOB) |
| Anterior olfactory nucleus dorsal part (AONd) |
| Anterior olfactory nucleus lateral part (AONl) |
| Anterior olfactory nucleus posteroventral part (AONpv) |
| Taenia tecta ventral part (TTv) |
| Piriform area (PIR) |
| Postpiriform transition area (TR) |
| Piriform-amygdaloid area (PAA) |
| Nucleus of the lateral olfactory tract (NLOT) |
| Cortical nucleus of the amygdala anterior part (COAa) |
| Cortical nucleus of the amygdala posterior part lateral zone (COApl) |
| Cortical nucleus of the amygdala posterior part medial zone (COApm) |
| Entorhinal area, lateral part (ENTl) |
| Entorhinal area medial part, dorsal zone (ENTm) |
| Subiculum ventral part (SUBv) |
| Field CA1 (CA1) |
| Gustatory areas (GU) |
| Visceral area (VISC) |
| Anterolateral visual area (VISal) |
| Agranular insular area dorsal part (AId) |
| Agranular insular area ventral part (AIv) |
| Agranular insular area posterior part (AIp) |
| Ectorhinal area (ECT) |
| Infralimbic area (ILA) |
| Orbital area lateral part (ORBl) |
| Orbital area medial part (ORBm) |
| Orbital area ventral part (ORBv) |
| Orbital area ventrolateral part (ORBvl) |
| Perirhinal area (PERI) |
| Prelimbic area (PL) |
| Claustrum (CLA) |
| Endopiriform nucleus dorsal part (EPd) |
| Endopiriform nucleus ventral part (EPv) |
| Lateral nucleus of the amygdala (LA) |
| Basolateral nucleus of the amygdala posterior part (BLAp) |
| Basomedial nucleus of the amygdala posterior part (BMAp) |
| Posterior nucleus of the amygdala (PA) |
| Medial nucleus of the amygdala posteroventral part (MEApv) |
| Medial nucleus of the amygdala anterodorsal part (MEAad) |
| Bed nuclei of the stria terminalis posterior division transverse nucleus (BSTtr) |
| Magnocellular preoptic nucleus (MA) |
| Substantia innominata (SI) |
| Nucleus reuniens rostral division (RER) |
| Lateral hypothalamic area (LHA) |
| Tuberal nucleus (TU) |
| Ventromedial nucleus of the hypothalamus ventrolateral part (VMHvl) |
| Ventromedial nucleus of the hypothalamus central part (VMHc) |
| Ventromedial nucleus of the hypothalamus dorsomedial part (VMHdm) |
| Ventromedial nucleus of the hypothalamus anterior part (VMHa) |
