Table 2.
Parameter | IPSPs (n = 13) mean ± SD | EPSPs (n = 6) mean ± SD |
---|---|---|
Postsynaptic Vm (mV)* | −55.0 ± 0.2 | −69.7 ± 2.7 |
PSP amplitude (mV) | 0.93 ± 0.81 | 1.8 ± 1.7 |
CV of PSP amplitude | 0.49 ± 0.25 | 0.34 ± 0.09 |
Failure rate (%) | 14 ± 17 | 7 ± 9 |
Latency (ms)** | 0.5 ± 0.1 | 1.0 ± 0.3 |
IPSPs were recorded at BIn–L4 spiny neuron connections at a membrane potential of −55 mV; EPSP were recorded at reciprocal L4 spiny neuron–BIn connection at resting membrane potential.
*Baseline membrane voltage for recording of IPSPs in postsynaptic L4 spiny neurons was set to a potential of −55 mV (see Materials and Methods section). The calculated IPSP amplitude at the resting membrane potential was 0.68 ± 0.82 mV.
**P < 0.001.