Table 1.

Anatomical and physiological properties of pyramidal to nonpyramidal cell connections

Groups of interneuronsTypes of interneuronsLaminar positionDistance to pia (μm)Distance to pyramid (μm)Width of axonal arbor (μm)Soma perimeter (μm)Number of putative synapsesEPSP amplitudes (mV)Failures (%)
LACsLACIIIs360353403910.5 1-a
LACIIIs283443643910.6  ± 0.2520
LACIII445334004210.8  ± 0.297
LACII222633123511.0  ± 0.370
LACIIIs3432230040.311.0  ± 0.3015
ChCIIIs2992916340.211.0  ± 0.4750
LACII252373143811.1  ± 0.2926
LACIII397493723621.9  ± 0.7312
LACIIIs309363203932.0  ± 0.750
MACsMACII185328454821.5  ± 0.66
MACIIIs302515444621.5  ± 0.7218
MACII2341553946.131.7  ± 0.5212
MACIIIs3506447050.142.1  ± 0.550
MACII2515853046.252.5  ± 0.780
MACII256235304410.5  ± 0.2950
MACIIIs36519686501.0 1-a
WACsWACII24225551.1  ± 0.230
WACIIIs27523107861.731.0  ± 0.350
WACIIIs266298525951.5  ± 0.563
WACII2124664057.310.3  ± 0.1142
  • F1-a Only on-line averaging of 20 individual sweeps was available for EPSP measurements in these two pairs; therefore, percentage of failures could not be calculated.