An auctioneer rapidly changes their voice pitch to highlight the best offers. Which communication effect limits the efficiency of this strategy?

💡 Explanation

The auctioneer's rapidly shifting pitch exceeds listeners' perceptual boundary, making it difficult to discern intentional emphasis from random variations, because auditory systems adapt to expected contours. Therefore, boundary shifts misinterpret emphasis, rather than alternative mechanisms like semantic satiation or syntactic priming influencing bid perception.

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