This report presents a new method for using steady-state visual stimulation and eeg for the measurement of spatial attention that provides better inherent temporal resolution and more balanced stimulation than achieved by older approaches. When applied to the study of exogenous spatial attention, this method is able to discern the expected timecourse of attention as reflecting equal attention between possible target locations at the time of cue presentation that shifts to increased attention at the cued location relative to the uncued location shortly thereafter, an imbalance that then decays to a smaller imbalance until presentation of the cueback, which appears to provide some sort of inducement or release to permit further shift of the balance towards decreased attention at the cued location relative to the uncued location shortly before presentation of the target. These results somewhat conflict with those of \citet{Li2017}, who used a more traditional multi-frequency (8Hz & 20Hz) design and observed patterns consistent with inhibition that started much earlier, around 200ms. It is beyond the scope of this report to hypothesize on the source of this discrepancy, but I propose that it may be attributable to the frequency imbalance in the steady-state stimuli used by Li et al affecting the timecourse of cuing in a way that the present methods do not. The best approach to further investigating and possibly resolving this discrepancy would be an experiment employing both approaches on different trials.