Memory load, critical features and retrieval processes in facial recognition

A Sternberg-type varied set procedure was used in which the set of stimuli associated with the "different" response was, in some cases, large and unspecified. A 3-factor design was used with repeated measures on list length (1, 2, or 4 faces), decision ("same" or "different"), and number of critical features varied between memory and target faces (0, 2, 4, or 7). Reaction times of college students for recognition of faces were analyzed to determine the nature of the retrieval processes employed. Reaction times were faster as the number of feature changes increased, and both parallel and serial processes were indicated for both "same" and "different" responses.