Following practice trials, present participants the test trials,
each containing one target and eight Distracters.
Either interchange the targets and Distracters(e.g., snake targets among frog Distracters, and frog targets among snake Distracters), or use a uniform set of Distracters for the threatening and non-threatening target conditions(e.g., snake targets among flower Distracters,
and frog targets among flower Distracters).