Table 3.

Morphometry of the 308 Bipolar Cells of the 9 Common Connectivity Subtypes.

	Dendritic Spread Area (µm2)				Soma Size (µm2)				Soma Depth (µm)
Subtype	All	OFF	ON	ON-OFF	All	OFF	ON	ON-OFF	All	OFF	ON	ON-OFF
G	2610 ± 2196Δ	2610 ± 2196	n/a	n/a	43 ± 14	43 ± 14	n/a	n/a	13 ± 3	13 ± 3	n/a	n/a
GBUV	555 ± 374	777 ± 463 *	230 ± 12 * #	536 ± 338#	37 ± 9	42 ± 9	38 ± 5	35 ± 9	16 ± 5Δ	15 ± 4	19 ± 5	15 ± 5
RG	703 ± 400	787 ± 434	565 ± 379	704 ± 369	37 ± 8	36 ± 9	39 ± 6	38 ± 8	12 ± 4	11 ± 3	15 ± 6	10 ± 1
RGB	780 ± 351	591 ± 373 *	870 ± 187	971 ± 294 *	35 ± 8Δ	36 ± 9	38 ± 8	33 ± 7	12 ± 3	12 ± 4	11 ± 2	12 ± 3
RGBUV	558 ± 331	572 ± 322	816 ± 492	551 ± 429	36 ± 10	35 ± 8	48 ± 18	36 ± 8	12 ± 4	11 ± 4	14 ± 5	14 ± 5
RGBRod	445 ± 240Δ	381 ± 196	507 ± 257	603 ± 330	39 ± 10	40 ± 10 *	39 ± 9	32 ± 6 *	13 ± 3	12 ± 3	13 ± 4	15 ± 5
RGBUVRod	658 ± 401	599 ± 300	463 ± 353 *	1196 ± 571 *	40 ± 9	41 ± 9	37 ± 8	41 ± 10	11 ± 4	11 ± 2	15 ± 8	11 ± 4
RGRod	431 ± 243Δ	395 ± 167	477 ± 322	600 ± 379	39 ± 9	37 ± 8	39 ± 9	47 ± 15	12 ± 4Δ	11 ± 3	13 ± 4	14 ± 4
RRod	608 ± 220	n/a	608 ± 220	n/a	53 ± 11Δ	n/a	53 ± 11	n/a	14 ± 2Δ	n/a	14 ± 2	n/a
Subtotal	657 ± 723	693 ± 908	548 ± 306 *	688 ± 424 *	39 ± 10	39 ± 10 *	43 ± 12 * #	37 ± 10#	12 ± 4	11 ± 3 * #	14 ± 4 *	13 ± 5#

n/a, not applicable;

^Δ,*,#p<0.05 (Student t-test);

^Δbipolar cells of a connectivity subtype were compared with those of the other 8 subtypes;

^*OFF, ON, and ON-OFF bipolar cells of a connectivity subtype or the 308 bipolar cells were compared.

^#OFF, ON, and ON-OFF bipolar cells of a connectivity subtype or the 308 bipolar cells were compared.