Perceptual Identification task
Participants are asked to study a list of words for example armchair, wall, dinner, desire, garage, horse foot. Afterwards they are presented with a very fast exposure of words for example garage (witch is on the study list) they get one point on an accuracy scale if they are able to report that the word they have been presented with is garage. Among the words that are presented very fast is also the word "garbage". It turns out participants are able to get more points on an accuracy scale for words that were on the study list than for words that were not on the study list. This is a test of implicit memory.