Reduced frequency and consistently increased amplitude of sIPSCs after CSD in vitro. (
A
) Voltage-clamp recordings of sIPSCs from Layer 2/3 pyramidal cells after CSD. Note the increase in amplitude of IPSCs post-CSD. (
B
) There was a significant reduction in sIPSC frequency 5 min post-CSD (rightward shift towards longer intervals;
P
= 3.13 × 10
−28
; 2-sample KS test; 5 min post-CSD:
n
= 8 cells, 8 mice and 30 min post-CSD:
n
= 9 cells, 9 mice) but not 30 min after CSD (
P
= 0.09; 2-sample KS test). (
C
) Consistent increase in sIPSC amplitude 5 and 30 min after CSD (5 min post-CSD:
P
= 1.67 × 10
−64
, 30 min post-CSD:
P
= 4.67 × 10
−20
; KS test; 5 min post-CSD:
n
= 8 cells, 8 mice and 30 min post-CSD:
n
= 9 cells, 9 mice). Magnified cumulative plot above shows larger amplitude events observed only in post-CSD group. Magnified cumulative plot to right shows expansion of histogram for lower amplitude range—rightward shift indicates larger EPSC amplitude for 5 and 30 min post-CSD groups.