Arteries leading to the brain constrict in response to an unspecified external trigger.
Again, there is an external trigger, but in this case it causes nerve cells in such areas as the visual cortex to fire off wildly and then become quiescent.
There's nothing inherently better or worse about one external trigger versus another.
For several participants, burning was a result of an external trigger.
The camera was connected to the computer and Nd YAG laser for external trigger.
For accurate measurement the oscilloscope and the vector signal generator are synchronized by an external trigger.
The ballooning instability can be excited nonlin-early by an external trigger (Hurricane et al., 1999).
The latter can be activated manually by the user or automatically by an external trigger signal.
The closer the timing of the external trigger is with the internal trigger, the sooner the association is formed.
But the global financial crisis has been the external trigger that has led, now, to a liquidity and credit crunch.
The acquisition timing of the image is precisely controlled by the external trigger signal coming from the real-time machine.
