Disruption of Short Term Recognition Memory for Tones: Streaming or Interference?

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Abstract
A sequence of auditory stimuli interpolated between the initial presentation of a tone and a comparison tone impairs recognition performance. Notably, the impairment is much less with interpolated speech than with tones. Six experiments converge on the conclusion that this pattern of impairment is due more to the organization of the interpolated sequence than to its similarity to the to-be-remembered standard. Factors that contribute to the coherence of the interpolated sequence into a stream distinct from the initial tone are primary determinants of the level of impairment. This is demonstrated by manipulating factors that contribute to the coherence of the interpolated sequence by the action of temporal, spatial, timbral, and tonal attributes. However, the relative immunity of recognition performance to the interpolation of unprocessed digit sequences is not explained wholly by such coherence.

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