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. 2022 Dec 22;475(4):505–516. doi: 10.1007/s00424-022-02777-6

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Fig. 1 — Semi-schematic line drawings of coronal sections through the dlPAG from rostral (left) to caudal (right) areas, showing the sites where electrical stimulations were applied. Black numbered circles show the location of electrical stimulation in animals which received kynurenic microinjections within the A5 region. dmPAG, dorsomedial periaqueductal grey; dlPAG, dorso-lateral periaqueductal grey; lPAG, lateral periaqueductal grey; vlPAG, ventro-lateral periaqueductal grey. (mlf) medial longitudinal fasciculus. (Pa4) paratrochlear nucleus