The phrase "appears to trigger an" is correct and usable in written English.
It can be used when discussing a phenomenon or action that seems to initiate a response or effect.
Example: "The new policy appears to trigger an increase in employee productivity."
Alternatives: "seems to initiate a" or "appears to cause a".
But, The New Yorker's Karen Russell writes, "the tissue death that results from stroke appears to trigger a self-repair program in the brain.
This move-upward motion in the luminal/extracellular loop appears to trigger a swivel of transmembrane regions including the selective filter pore and provide us a clue to investigate the channel gating mechanism.
The injury appears to trigger a cascade of molecular events that lead to gradual vascular and neuronal tissue degeneration, thus destroying the anatomical substrate necessary for the neurological recovery.
Although some mechanisms of this phenomenon remain unclear, the level of intracellular (axoplasmic) Ca2+ appears to trigger a number of signaling cascades in neurons and Schwann cells [ 7, 25, 26].
The strengthening of an emotional bond between partners appears to trigger a process in which the likelihood of unprotected sex increases: as the emotional connection grows stronger, trust increases, feelings of exclusivity in the sexual relationship grow - which in turn lowers the concern about becoming infected with an STI.
As noted before in the human diseases described, and also in tissue culture and knockdown studies of several Fe−S proteins, including ISCU (29), frataxin (53), and ISD11 (26), defective mitochondrial Fe−S cluster assembly appears to trigger a chain of events.
The July ablation she'd had on the small lesion on her liver appeared to trigger an inflammatory response, resulting in a new proliferation of cancer cells.
