Table 5.
Input to PER, POR and ER: Percentage of total retrogradely-labeled cells
| Perirhinal | Postrhinal | Entorhinal | |||
|---|---|---|---|---|---|
| Afferents | Area 35 | Area 36 | LEA | MEA | |
| DORSAL HC | |||||
| DGd | 0.00±0.00 | 0.00±0.00 | 0.00±0.00 | 0.02±0.01 | 0.15±0.11 |
| CA3d | 0.20±0.20* | 0.04±0.04* | 0.02±0.02* | 0.38±0.22 | 0.36±0.22 |
| CA2d | 0.45±0.45* | 0.03±0.03* | 0.10±0.05 | 0.21±0.09 | 0.62±0.35 |
| CA1d | 17.24±7.19 | 6.40±4.30 | 16.26±8.64 | 13.68±5.21 | 22.79±15.24 |
| SUBd | 12.78±6.28 | 2.64±1.15 | 5.78±2.23 | 6.22±2.16 | 4.08±2.18 |
| VENTRAL HC | |||||
| DGv | 0.00±0.00 | 0.00±0.00 | 0.00±0.00 | 0.08±0.02 | 0.15±0.09 |
| CA3v | 0.73±0.74* | 0.00±0.00 | 0.00±0.00 | 1.30±0.89 | 4.29±2.76 |
| CA2v | 2.82±2.85* | 0.35±0.21 | 0.07±0.06 | 1.94±0.76 | 1.27±1.04 |
| CA1v | 38.87±23.73 | 57.10±5.20 | 6.30±2.05 | 42.21±7.05 | 10.92±5.41 |
| SUBv | 13.73±8.85 | 19.14±4.76 | 3.14±0.83 | 18.01±5.57 | 9.29±3.82 |
| PARAHC | |||||
| PREd | 1.47±0.89 | 3.41±1.25 | 33.08±6.80 | 3.48±1.54 | 19.76±7.83 |
| PREv | 2.89±2.92 | 0.11±0.08 | 0.73±0.44 | 4.15±2.11 | 3.96±1.71 |
| PARr | 4.70±3.86 | 1.49±0.57 | 0.57±0.18 | 5.06±2.37 | 2.36±0.94 |
| PARc | 4.10±3.11 | 9.27±3.96 | 33.97±6.03 | 3.26±1.24 | 20.00±15.02 |
| TOTAL PCT | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 |
| TOTAL CELLS | 11088±6662 | 8855±3613 | 15854±3737 | 54720±11062 | 64157±12896 |
Data are mean percentage ± standard error of input based on total normalized labeled cells arising from retrograde tracer injections. Mean totals of normalized cell counts are shown in bottom row.
*
Cells in these areas were observed in a single case, only: 108FG for area 35, 100DY for area 36, and 97FB for POR. Sites 108FG and 100DY were located close to the entorhinal border, but 97FB was not. Note that inputs comprising less than 1% total should be interpreted with caution.