Figure 3.

Connections of the LHAjd and LHAjp with regions indicated to play a key role in the expression of defensive behavioral responses, in particular to socially-relevant threats (stressors). Also indicated are comparative changes in the levels of cFos expression associated with three different stressors: entrapped immobilization (restraint; Motta and Canteras, 2015), encounter with a dominant conspecific (Motta et al., 2009; Motta and Canteras, 2015), and re-exposure to social defeat-associated context (Faturi et al., 2014; see figure Key for explanation of symbols). The cFos data is shown only for the LHAjd and LHAjp and their connected regions that were included in previous analysis. The connections shown are based on data obtained from previous pathway tracing studies (not all connections are shown): (Simerly and Swanson, 1988; Canteras and Swanson, 1992a; Canteras et al., 1992a, 1994; Risold and Swanson, 1997b; Comoli et al., 2000; Goto et al., 2005; Cenquizca and Swanson, 2007; Motta et al., 2009; Hahn and Swanson, 2010, 2012). Abbreviations: CA1v, Hippocampal region, Field CA1, ventral part; LHAjp, Lateral hypothalamic area, Juxtaparaventricular region; LHAjd, Lateral hypothalamic area, Juxtadorsomedial region; MEAad, Medial amygdalar nucleus, anterodorsal part; MEApd, Medial amygdalar nucleus, posterodorsal part; MPN, Medial preoptic nucleus; MPO, Medial preoptic area; PAGd, Periaqueductal gray, Dorsal division; PAGl, Periaqueductal gray, Lateral division; PMd, Dorsal premammillary nucleus; PMv, Ventral premammillary nucleus; SUB, Subiculum; TU, Tuberal nucleus; VMHvl, Ventromedial hypothalamic nucleus, Ventrolateral part; dm, dorsomedial; l, lateral; m, medial; vl, ventrolateral.