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Table 1 Sequence of events in each experimental trial.

From: Effect of initiation-inhibition and handedness on the patterns of the P50 event-related potential component: a low resolution electromagnetic tomography study

Sequence of actions Duration of actions
Auditory sentence presentation 3-5 sec
EEG recording 500 ms
Warning stimulus* 100 ms
ERP recording*+ 1 sec
Warning stimulus repetition 100 ms
Response onset Within 5 sec
Period between response completion and onset of next sentence presentation 4-9 sec
  1. *Simultaneous onset of warning stimulus and of ERP recording
  2. +Peak amplitudes were measured relatively to the mean amplitude of the 100 ms pre-stimulus baseline period; latency measurements were computed relatively to warning stimulus onset.