in contrast , the proportion of thalamocortical synapses formed by the layer iv dendrites of corticostriatal ( hersch & white , in preparation ) and corticocortical ( white & hersch , 1981 ) projection cells ranges from 0.3 to 0.9 % and from 1.5 to 6.8 % , respectively .
C0039062
synapses
C0007634
cells