Table 1.

Overview of the data sources used

Data modality	Sources
Layer-resolved neuronal volume densities	Personal communication, H. Barbas and C.-C. Hilgetag
Architectural types	Hilgetag et al. (2016, Table 4)
Total cortical thicknesses	Hilgetag et al. (2016, Table 4)
Laminar thicknesses, estimated from micrographs	O’Kusky and Colonnier (1982), Boussaoud et al. (1990), Rakic et al. (1991), Preuss and Goldman-Rakic (1991), Rockland (1992), Felleman et al. (1997), Petrides and Pandya (1999), Angelucci et al. (2002), Lavenex et al. (2002), Suzuki and Amaral (2003), Rozzi et al. (2006), Eggan and Lewis (2007), Markov et al. (2014a)
Ratios of excitatory to inhibitory cell counts	Binzegger et al. (2004)
Surface areas	Computed with Caret (Van Essen et al. 2001) on the basis of each area’s representation on the F99 cortical surface (Van Essen 2002)
Local microcircuit scheme	Potjans and Diesmann (2014, Table 5), largest contributions from Binzegger et al. (2004), Thomson and Lamy (2007)
Intrinsic fractions of labeled neurons (${\text{FLN}}_{\mathrm{i}}$)	Markov et al. (2011)
Average number of synapses per receiving neuron (indegree) in monkey V1	Cragg (1967), O’Kusky and Colonnier (1982)
Binary connectivity matrix for cortico-cortical connections	Stephan et al. (2001), Bakker et al. (2012), Suzuki and Amaral (1994a), Felleman and Van Essen (1991), Rockland and Pandya (1979), Barnes and Pandya (1992)
Fractions of labeled neurons (FLN)	Markov et al. (2014a)
Fractions of supragranular labeled neurons (SLN)	Markov et al. (2014b)
Laminar source patterns of cortico-cortical connections from retrograde tracing	Felleman and Van Essen (1991), Barnes and Pandya (1992), Suzuki and Amaral (1994b), Morel and Bullier (1990), Perkel et al. (1986), Seltzer and Pandya (1994)
Laminar target patterns of cortico-cortical connections from anterograde tracing	Jones et al. (1978), Rockland and Pandya (1979), Morel and Bullier (1990), Webster et al. (1991), Felleman and Van Essen (1991), Barnes and Pandya (1992), Distler et al. (1993), Suzuki and Amaral (1994b), Webster et al. (1994)
Statistical relations between synapse and cell body locations in cat V1	Binzegger et al. (2004)