In schneider and shiffrin's experiment, in which participants were asked to indicate whether a target stimulus was present in a series of rapidly presented "frames," divided attention was easier a. once processing had become automatic.

The processing technique that is used in the Schneider and Schifrin’s experiment is the controlled processing. The participants who were asked to indicate if the target stimulus was present in a series of rapidly presented frames divided attention was easier are the participants who are in the consistent-mapping condition.

Sorry wish i could