Table 3 Small intestinal spike waves compared to colonic spike burst activity

Duration (s)

0.5–1 s

10–180 s

Event frequency (Hz or cpm)

 ~ 10 Hz (~ 600 cpm)

24–48 cpm

Burst frequency

6–12/min

Sporadic/random (< 3/min)

Amplitude

50–100 uV

400–2000 uV

Morphology

Biphasic/variable

Biphasic; regular activity (n = 2); irregular/sporadic activity (n = 5)

Propagation

Short-durations or absent

Absent