Date of this Version
Oral naming latencies were measured for visually displayed digits that were flanked by either compatible (identical) or incompatible (different) noise digits. When target-noise spatial separation was "narrow" (1.1-deg visual angle), substantially longer latencies were observed for incompatible target-noise combinations than for compatible combinations, and this effect was greatest when the onset of the noise preceded the target by 150 msec. When target-noise spatial separation was increased to 3.3 deg, noise-compatibility effects were substantially attenuated when the noise preceded the target by 100 msec or less, but the effects reappeared with longer SOA values and reached a maximum when the noise preceded the target by 250 msec. This three-way interaction of spatial separation, SOA, and noise compatibility offers support for the continuous flow conception of visual information processing described by Eriksen and Schultz (1979).