Figure 8.

(A) Micrograph of a coronal section of the midbrain tectum from a case that received an injection of BDA confined to the ipsilateral SPON. Case 97084, whose injection site is depicted in Figure 1B. The boxed areas are shown at higher magnification in (B–D). (B) Terminal labeling in the ventrolateral part of the deep layers of the SC. (C) Labeled fibers that ascend radially toward the superficial layers of the SC. (D) Details of terminal fibers in the dorsolateral column of the PAG (PAGdl). Calibration bar in (B) applies also to (C,D). Abbreviations of SC layers and PAG columns as in Figure 2.