Holcombe lab

Figure 7. Performance vs. resource functions. Performance increases with resource available per target, yielding for example higher percent correct for the one target condition (100% resource per target) than the two target condition (50% resource per target). The capacity-one model for the two target condition is that participants only track one target and ignore the other. The resulting level of performance for the two-target condition (green dot) is halfway between chance and the one target performance level. A linear resource vs. performance function makes the same prediction. Empirically, at high speeds performance was worse than these predictions (Figure 6), implying that the actual performance vs. resource function falls below the linear function.   From Holcombe & Chen (submitted)

Figure 7. Performance vs. resource functions. Performance increases with resource available per target, yielding for example higher percent correct for the one target condition (100% resource per target) than the two target condition (50% resource per target). The capacity-one model for the two target condition is that participants only track one target and ignore the other. The resulting level of performance for the two-target condition (green dot) is halfway between chance and the one target performance level. A linear resource vs. performance function makes the same prediction. Empirically, at high speeds performance was worse than these predictions (Figure 6), implying that the actual performance vs. resource function falls below the linear function.   From Holcombe & Chen (submitted)