Table 2.

Characteristics of neurons in the PC activated antidromically from the GCL of the OB (n = 43)

Mean ± SDRange
Antidromic threshold388 ± 264 μA100–1000 μA
Frequency following (minimum interval)a2.3 ± 0.5 ms1.5–4.0 ms
Antidromic latency19.7 ± 7.2 ms7–38 ms
Conduction velocity (lower limit)b0.60 ± 0.29 m/s0.26–1.50 m/s
Anterior–posterior distance from bregmacB − 0.7 ± 1.1 mmB + 1.4 to B − 1.9 mm
  • an All but one cell followed paired-pulse stimulation at intervals of 3.0 ms or less. The one cell with a larger minimum interval (4.0 ms) was spontaneously active and exhibited collision between spontaneous and evoked action potentials.

  • bn A lower-limit estimate of conduction velocity was calculated using the cell's antidromic latency and the straight-line distance between stimulation and recording sites.

  • cn Estimated from Paxinos and Watson (1997).