Continuity Effects with Alternately Sounded Noise and Tone Signals as a Function of Manner of Presentation

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Abstract
The perceived continuity of a noise signal is significantly affected by the following: the frequency of the tonal signal (200, 400, 1000, 2000, and 4000 cps), the duration of the noise signal (70, 250, and 950 msec), and the manner of presentation (monaural versus dichotic). Monaural thresholds were found to be larger than dichotic continuity thresholds. Continuity effects were demonstrated under dichotic presentation. That is, the noise signal was reported as continuous when interrupted for periods of time that would be clearly perceived if no tonal signal were interpolated in the interruptions of the noise. A 2-factor theory is forwarded to explain the dichotic and monaural continuity effects.

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