短期記憶におけるデュアル・エンコーディング仮説 : 挿入作業の性質が情報ロスに及ぼす効果の検討

概要

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2 experiments were conducted to demonstrate that the encoding in the short-term memory system is 2 dimensional in nature. Experiment I was designed to retest Heyer and Barretts hypothesis under the conditions of similar and dissimilar interpolated stimuli. The results of Experiment I indicated that the identity information was encoded both acoustically and pictorially and that the position information was encoded pictorially. Experiment II was designed to examine the effect of time lapse on the dual-encoding. The result suggested that 200 msec after the offset of the original stimulus, position information was encoded pictorially and identity information was encoded pictorially and acoustically in the STM-system. The dual-encoding model were proposed based on the results of these experiments.