Brain Imaging & Analysis Center

The TRIGTYPE variable is used to specify which external signal will trigger the start of a paradigm.

Values for TRIGTYPE are:

1 - digital input; uses DSTARTMASK to specify which bit(s) would trigger
2 - keyboard (or mouse) input; uses DSTARTMASK to specify which key would trigger
3 - analog input; uses ATRIG_CHAN to specify the analog port, and ATRIG_VAL to specify the signal threshold for triggering
4 - port (any input); uses ATRIG_CHAN to specify the port
5 - port (specific bits); uses ATRIG_CHAN to specify the port, and DSTARTMASK to specify which bit(s) would trigger

TRIGTYPE is used in conjunction with TRIG_FLAG, which indicates when to look for external trigger signals. See Also:
Trig_flag, Atrig_chan, Atrig_val, Dstartmask)
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