Attending to different levels of structure in a visual image

摘要: Two experiments are reported in which observers had to utilize information from one of two structural levels visual stimulus patterns (large letters composed smaller ones). They could more rapidly form level only at the cost slower utilization other. This trade off defines an empirical attention operating characteristic (AOC) is consistent with a simple mathematical model perceptual process: when viewing stimulus, observer selects alternative “attentional” strategies, where each strategy optimal for utilizing level, but less than