Figure 5.

Camera lucida reconstructions of two axons terminating in the CF, anterogradely labeled by injections of BDA in parietal areas PF/PFG, Case 28 (A) and PG/Opt, Case 26 (B). Both these axons are widely divergent. The axon in (A) extends over a territory 11.0 mm DV by 3.5 mm AP. Terminations are limited to V1, but occur in both supra- and infragranular layers. Four main foci can be discerned, separated by variable intervals of about 0.3–3.0 mm. The axon in (B) has a small terminal focus in layer I of V1 (around section 80), but has terminations mainly in layer I of V2. In V2, four collaterals (short, solid arrows), spaced about 1.0 mm apart (AP), extend variable distances from the ventral V1/V2 border. The total extent of this axon is 13.0 mm AP by 3.6 mm DV. Dashes at sections 179–212 indicate a gap (in the summary reconstruction, but not in the raw data), where a portion of the axon has not been depicted, for the sake of space. Asterisk denotes the main axon, which was followed toward the injection site until section 160 (almost 4 mm rostral). Conventions as in Figures 2 and 4.