Japanese Psychological Research
Online ISSN : 1468-5884
Print ISSN : 0021-5368
Effect of familiarity and autoprocessing of irrelevant stimulus on the processing of relevant stimuli
AKIRA ISHIGUCHI
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JOURNAL FREE ACCESS

1986 Volume 28 Issue 1 Pages 41-45

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Abstract

Effects of familiarity of the irrelevant stimulus on the processing of the relevant stimuli was examined. The task in Exp. I was of odd-even matching between two digits (relevant stimuli), which was considered as a high level processing, and that in Exp. 2 was of physical matching, which was considered as a low level processing task. In both experiments, one Chinese character (irrelevant stimulus) was presented at the center between two digits in each test trials. In the high familiarity condition (SO), the irrelevant stimuli were presented repeatedly in a memorization session, while in the low familiarity condition (SN), they were merely presented before the actual task. The results were that when the task required a low level processing (Exp. 2), the irrelevant stimulus, both in the high familiarity condition (SO) and in the low familiarity condition (SN), had the inhibitory effect upon the encoding of the relevant stimuli, but in the task which required a high level processing (Exp. 1) the irrelevant stimulus with high familiarity (SO) had the effect of indirect facilitation. Interaction between the effect of familiarity and the level of processing was discussed.

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