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. 2010 Nov;151(2):475–488. doi: 10.1016/j.pain.2010.08.008

Table 2.

Firing pattern of different types of lamina II neuron.

Inhib/Excit Morphology (No. tested) No. showing pattern Firing pattern
(from initial holding potential)
−50 to −65 mV −65 to −80 mV −80 to −95 mV
Inhibitory Islet (11) 8 Tonic Tonic Tonic
2 Transient Transient Transient
1 Tonic Tonic Gap
Central (3) 3 Tonic Tonic Tonic
Vertical (2) 2 Tonic Tonic Tonic
Unclassified (7) 6 Tonic Tonic Tonic
1 Transient Transient/gap Transient/delayed
Excitatory Central (1) 1 Tonic Tonic Tonic
Radial (6) 3 Delayed Delayed Delayed
1 Gap Delayed Delayed
1 Tonic Delayed Delayed
1 Tonic Transient/gap Transient/delayed
Vertical (6) 4 Delayed Delayed Delayed
1 Delayed Delayed Reluctant
1 Reluctant Reluctant Reluctant
Unclassified (9) 2 Tonic Tonic Tonic
1 Tonic Tonic Gap
2 Tonic Gap Gap
1 Transient Transient Reluctant
1 Transient Transient Single
1 Transient Transient/gap Delayed
1 Delayed Delayed Delayed