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| Morphology |
| Soma | |
| CA2:SP |
| Axons | |
| CA3:SP | |
| CA2:SP | |
| CA1:SP |
| Dendrites | |
| CA3:SP | |
| CA2:SLM | |
| CA2:SR | |
| CA2:SP | |
| CA2:SO | |
| CA1:SP |
| Representative figure |
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Local circuitry involving parvalbumin-positive basket cells in the CA2 region of the hippocampus. Mercer A, Eastlake K, Trigg HL, Thomson AM Hippocampus, 2012 Jan, 22 (1), pages: 43 - 56 PMID: 20882544; DOI: 10.1002/hipo.20841 |
 "FIGURE 5. Examples of CA2 pyramid to wide dendritic arbor basket cell connections. In A1, the reconstruction of one of these cell pairs is shown (basket cell dendrites black, axon red, pyramidal cell dendrites green). The basket cell {CA2 Wide-Arbor Basket} was PV[parvalbumin]-immunopositive. A putative contact between the pyramidal cell and the basket cell is represented by a purple square. An image of the contact is shown in the bottom left panel." |
| Molecular markers |
| Positive | |
| Gaba-a-alpha (inference) | |
| PV |
| Negative | |
| 5HT-3 (inference) | |
| CB (confirmed by inference) | |
| CCK (multiple confirming inferences) | |
| GABAa\alpha 6 (inference) | |
| VIP (multiple confirming inferences) |
| Mixed expression | |
| None known |
| Electrophysiological properties |
| Key: [range] OR representative value±SD (measurements); Number of sources (total measurements): [min , max] | |
| Resting membrane potential (Vrest): -74.9±5.6 mV (10); 1 source | |
| Input resistance (Rin): 111.8±36.7 MΩ (10); 1 source | |
| Time constant (τm): 12.6±4.2 ms (10); 1 source | |
| Threshold potential (Vthresh): [26.0, 34.0] mV (2); 1 source | |
| Fast afterhyperpolaziring potential amplitude (Fast AHP): 19.5±9 mV (10); 1 source | |
| Action potential amplitude (APampl): 65.5±7.1 mV (10); 1 source | |
| Action potential width (APwidth): 0.6±0.1 ms (10); 1 source | |
| Max firing rate (Max F.R.): >125 Hz (1); 1 source | |
| Slow afterhyperpolarizing potential amplitude (Slow AHP): 7 mV (1); 1 source | |
| Sag ratio: 0.55 (1); 1 source |
| Notes |
| The cells from Mercer 2007, formerly 2332 basket cells, have been reinterpreted so proximal SO and SR are considered to be extensions of SP. Mercer (2007): distal portions of horizontal dendrites are sparsely spiny. Mercer (2012): dendrites putatively contact pyramidal somata or proximal dendrites. Borderline: D:CA3:SP and D:CA1:SP. |
| Firing Pattern |
| Images | |
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| Parameters | View page | |
| ASP.NASP | [Evidence] [Firing Pattern] | |
| RASP.NASP | [Evidence] [Firing Pattern] |
| Izhikevich Model |
| Parameters | Single Compartment | Downloads | Simulate |
| subtype: 1 k=0.51;a= 0.006;b= -2.16;d= 66;C= 148;Vr= -63.2;Vt= -32.84;Vpeak= 35.01;Vmin= -38.33; | Simulate |
| Images | |
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| ModelDB Model |
| Model Accession Number | PubMed ID |
| Sources of Input |
| Targets of Output |
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| Oscillation Phase Locking |
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