The effect of modality on long-term recognition memory |
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| Institution: | 1. School of Mathematics, Southwest Jiaotong University, Chengdu 610031, China;2. School of Computing, Ulster University, Northern Ireland, UK;3. National-Local Joint Engineering Laboratory of System Credibility Automatic Verification, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | Two experiments examined the effects of visual and auditory modes of input on long-term memory. In Experiment 1, 40 subjects learned a 40-word list presented in a blocked or random fashion. In the blocked conditions learners were presented half the nouns in one modality followed by the remaining 20 words in the other modality (See-Hear or Hear-See). Subjects in random conditions also received half the list in each modality, but the presentation was random (Mixed or Mixed Reverse). Following a 6-min delay, subjects completed an 80-item visual recognition test. Analysis of these data showed significantly (p < .05) greater recognition of words presented visually than those presented auditorily. Experiment 2 was designed to test the hypothesis that learners may visualize a “literal copy” of the stimulus item by controlling for the extent to which the recognition measure offered a visual cue. Two groups of 40 subjects were examined using the same procedure used in Experiment 1, with the exception that one group received a visual recognition test while the other was tested auditorily. These data showed that the lack of a visual cue hindered the recognition of visually presented words, while it had little effect on stimuli presented auditorily. The results of these experiments were interpreted as support for the hypothesis that physical characteristics of a stimulus may persist in memory well beyond immediate memory intervals. Subjects were seen to make modality-specific decisions by testing long-term memory for the presence or absence of a visual memory trace. |
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