Perceptual origins of the phoneme boundary effect and selective adaptation to speech: a signal detection theory analysis.
Perceptual origins of the phoneme boundary effect and selective adaptation to speech: a signal detection theory analysis.
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音素边界效应的感知起源和对语音的选择性适应：信号检测理论分析。
DOI：
10.1121/1.382235
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发表时间：
1979
期刊：
影响因子：
--
通讯作者：
J. Elman
中科院分区：
文献类型：
--
作者：
J. Elman
音素边界附近刺激的可辨别性差异和选择性适应的发现已被用来论证神经生理学机制（特征检测器）的存在，这些机制介导语音和类语音声音的感知。使用检测理论模型来发现音素边界效应和适应后音素边界的变化是否可能归因于响应偏差的变化。该模型应用于适应前后三组刺激的音素识别分析。虽然音素边界效应的起源似乎低于反应偏差的水平，但研究结果表明，适应后的识别变化可能仅仅是由于标准的变化，而不是感觉水平的变化。
Differences in discriminability of stimuli near phoneme boundaries and findings from selective adaptation have been used to argue for the existence of neurophysiological mechanisms--feature detectors--which mediate the perception of speech and speechlike sounds. A detection theory model was used in order to discover whether or not the phoneme boundary effect and the shift in phoneme boundary after adaptation might rather be attributable to changes in response bias. This model was applied in the analysis of phoneme identifications of three sets of stimuli before and after adaptation. While the origins for the phoneme boundary effect appear to lie below the level of response bias, findings suggest that identification changes after adaptation may be due solely to shifts in criterion, rather than changes at the sensory level.