Fig. 2.

Data from experiments of Best et al. (2008) and Best et al. (2010), in which one target and four interfering strings of digits were presented from different loudspeakers placed in an arc in front of the listener. a Increases in scores occurring when target digits are presented from a fixed location, instead of from “restricted” locations changing at most one loudspeaker position at a time, or from random locations. The changes could be cued with lights either at the time of change or in advance. The condition “predictable locations” employed the same sequence of locations throughout a block. b Increases are shown occurring when the string of target digits was spoken by a single voice, instead of different voices for each digit. The “simultaneous cue” condition in this case used random locations. All results are for an inter-digit delay of 250 ms, except those for the “predictable locations” condition, to which a correction factor was applied because they were only measured for a delay of 0 ms