Procedure Learning Effects in Speech Perception Tests

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Abstract
The effects of procedure learning were studied using data obtained from normal-hearing subjects by presenting words under noise either in isolation or in the context of sentences. The data establish firmly an effect of procedure learning on the performance of subjects during a 1-hour testing session when the subjects have participated in a previous 1-hour testing session during which about 250 test words were presented. The magnitude of the effect is equivalent to a shift in signal-to-noise ratio of the order of 1 dB.