Hammond E J, Silva D A, Klein A J, Teas D C
Electroencephalogr Clin Neurophysiol. 1979 Apr;46(4):482-5. doi: 10.1016/0013-4694(79)90150-0.
In a temporal discrimination paradigm, if signal duration is the stimulus dimension to be discriminated, the moment of subject's decision can be manipulated by varying the duration of the target stimulus. As stimulus duration is lengthened, task-contingent potentials related to the decision process can be separated from those evoked by stimulus onset. Analysis of individual evoked responses indicates that 3 task-contingent components, occurring at 220, 300 and 340 msec are precisely time-locked to the moment of decision.
在时间辨别范式中，如果信号持续时间是要辨别的刺激维度，那么通过改变目标刺激的持续时间，可以操纵受试者做出决定的时刻。随着刺激持续时间的延长，与决策过程相关的任务相关电位可以与刺激开始时诱发的电位分开。对个体诱发反应的分析表明，在220、300和340毫秒出现的3个任务相关成分与决策时刻精确地锁时。
