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Université de Fribourg

Intrinsic connections of the macaque monkey hippocampal formation: II. CA3 connections

Kondo, Hideki ; Lavenex, Pierre ; Amaral, David G.

In: The Journal of Comparative Neurology, 2009, vol. 515, no. 3, p. 349 - 377

We examined the topographic organization of the connections of the CA3 field of the macaque monkey hippocampus. Discrete anterograde and retrograde tracer injections were made at various positions within CA3 and CA1. The projections from CA3 to CA1 (Schaffer collaterals), which terminate in the strata radiatum, pyramidale, and oriens, are present throughout the entire transverse extent of CA1....

Université de Fribourg

Hippocampal lesion prevents spatial relational learning in adult Macaque monkeys

Lavenex, Pamela Banta ; Amaral, David G. ; Lavenex, Pierre

In: The Journal of Neuroscience, 2006, vol. 26(17), p. 4546-4558

The role of the hippocampus in spatial learning and memory has been extensively studied in rodents. Comparable studies in nonhuman primates, however, are few, and findings are often contradictory. This may be attributable to the failure to distinguish between allocentric and egocentric spatial representations in experimental designs. For this experiment, six adult monkeys received bilateral...