THE USE OF AUDITORY AND PHONETIC MEMORY IN VOWEL DISCRIMINATION
THE USE OF AUDITORY AND PHONETIC MEMORY IN VOWEL DISCRIMINATION
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DOI:
10.1121/1.393537
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发表时间:
1986-02-01
影响因子:
2.4
通讯作者:
MORSE, PA
中科院分区:
文献类型:
--
作者:
COWAN, N;MORSE, PA
A commonly held assumption about memory for speech is that auditory memory is referred to only if phonetic memory does not contain the information needed for a particular trial. However, this assumption is in conflict with recent evidence [Crowder, J. Exp. Psychol.: Learning, Memory, Cognition 8, 153-162 (1982); Repp et al., J. Exp. Psychol.: Human Perception Performance, 5, 129-145 (1979)]. The present study provides additional data to help determine how auditory and phonetic memory are used in a vowel discrimination task, and what happens during memory decay. Experiment 1 was conducted to determine whether performance levels decline at similar rates on between- and within-category AX vowel comparison trials when certain methodological problems are removed. This was confirmed. Experiment 2 demonstrated that in the AX task there is a vowel order effect, as Repp et al. found, but that this effect increased across interstimulus delay intervals, in contrast to their findings. The results can be accommodated with a model in which the memory for a vowel is represented as a small, bounded area within the vowel space, and in which memory decay is represented by the expansion of that bounded area over time.