AN EXPERIMENTAL INVESTIGATION OF REPETITION AND PROCESSING TASK AS DETERMINANTS OF RECOGNITION AND EVALUATION OF NON-COMMUNICATION STIMULI.

摘要

An experiment was conducted to test hypotheses that related exposure level and processing task to recognition and evaluation of the stimuli, which were random note sequences. These "melodies" were presented to subjects 0, 1, 2, 3 or 6 times on a within-subjects basis. On a between-subjects basis, subjects listened to the melodies under five different listening task conditions, which controlled the extent of elaboration with which melodies were encoded. After the exposure phase, subjects were given recognition and evaluation measures.;Post hoc analyses revealed a strong association between evaluation and confidence as well as between evaluation and familiarity. It was concluded that exposure and processing tasks influenced evaluation largely through their effects on subjects' feelings of confidence in recognition judgments and sense of familiarity.;The results indicated an interaction between exposure and processing task on recognition. Melodies were recognized more accurately after more exposures in all processing conditions, but the more elaborated encoding conditions resulted in greater memory improvement per exposure. The results indicated main effects of both factors on evaluation, but no interaction. Evaluation improved with exposure. A surprising result was that structural processing resulted in the highest evaluations. Under minimal processing, no exposure effects on evaluation occurred.