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Article: The Crossed Projection to the Striatum in Two Species of Monkey and in Humans: Behavioral and Evolutionary Significance.

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Innocenti GM; Dyrby TB; Andersen KW; Rouiller EM; Caminiti R
Cereb. Cortex, 2016


Table 1

Diameter, computed conduction velocity, pathway length and delays in projections from cortical areas to contralateral striatum, in monkeys

Origin Termination n Mean diameter Velocity Path from CC µm Path to CC From injection Delay min max
µm m/s µm µm µm ms
Area 9 Caudate 169 0.51 4.0 6863 13 442 20 305 5.1
Premotor F7 Caudate 93 0.54 4.2 7035-8347 12 579 19 614-20 926 4.6 4.9
Premotor F7 Putamen 104 0.52 4.1 11 096-13 039 12 579 23 675-25 618 5.8 6.3
Area 4 Putamen 98 0.43 3.4 11 010-14 855 16 902 27 102-30 947 8.0 9.2

  • Note: Values uncorrected for shrinkage (∼30%): range of path length depends on more or less distal access to the structures;

  • delays are calculated from injection sites; and standard deviations of axon diameters are 0.18 (a9 to caudate); 0.3 (pm to caudate); 0.15 (pm to putamen); 0.13 (a4 to putamen).


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