Table 1.

The 24 kinetic variables selected for this study

No.	Parameter
1	Number of action potentials of the interpositus neuron in the CS–US interval.
2	Latency of the maximum instantaneous frequency for the interpositus neuron in the CS–US interval, with respect to the reference zero (ms).
3	Amplitude of the maximum instantaneous frequency for the interpositus neuron in the CS–US interval (spikes/s).
4	Latency of the first action potential of the interpositus neuron after the CS (ms).
5	Latency of the maximum instantaneous frequency for the interpositus neuron, with respect to CS presentation (ms).
6	Time of occurrence of the maximum instantaneous frequency for the interpositus neuron, with respect to the start of the CR (ms).
7	Number of action potentials of the interpositus neuron in the interval between US presentation and the subsequent 100 ms.
8	Latency of the maximum instantaneous frequency for the interpositus neuron between US presentation and the subsequent 100 ms (ms).
9	Amplitude of the maximum instantaneous frequency for the interpositus neuron between US presentation and the subsequent 100 ms (spikes/s).
10	Latency of the first action potential of the interpositus neuron after the US (ms).
11	Latency of the maximum instantaneous frequency for the interpositus neuron, with respect to US presentation (ms).
12	Time of occurrence of the maximum instantaneous frequency for the interpositus neuron, with respect to the start of the UR (ms).
13	Number of action potentials of the orbicularis oculi motoneuron in the CS–US interval.
14	Latency of the maximum instantaneous frequency for the motoneuron in the CS–US interval, with respect to the reference zero (ms).
15	Amplitude of the maximum instantaneous frequency for the motoneuron in the CS–US interval (spikes/s).
16	Latency of the first action potential of the motoneuron after the CS (ms).
17	Latency of the maximum instantaneous frequency for the motoneuron, with respect to CS presentation (ms).
18	Time of occurrence of the maximum instantaneous frequency for the motoneuron, with respect to the start of the CR (ms).
19	Number of action potentials of the motoneuron in the interval between US presentation and the subsequent 100 ms.
20	Latency of the maximum instantaneous frequency for the motoneuron between US presentation and the subsequent 100 ms (ms).
21	Amplitude of the maximum instantaneous frequency for the motoneuron between US presentation and the subsequent 100 ms (spikes/s).
22	Latency of the first action potential of the motoneuron after the US (ms).
23	Latency of the maximum instantaneous frequency for the motoneuron, with respect to US presentation (ms).
24	Time of occurrence of the maximum instantaneous frequency for the motoneuron, with respect to the start of the UR (ms).