Results$ obtained from the screening experiments for seeding densities.

CP: cultivation period;SD: seeding density.$For a better overview, only results from one preparation were shown for 5 days of cultivation.§spheroidal morphology with no or short neurites (restricted neuronal morphology);Confluency: rated confluency in per cent; optical evaluation of the whole well under bright-field conditions using a 40-fold magnification;Cell debris, conglomerates, and neuronal yield.−: no debris, conglomerates, or neurons;+: poor amount; +(+): poor-middle;++: middle amount; ++(+): middle-high;+++: high amount.