The Effect of Different Response Modes in a Selective Attention Task.
JOHNS HOPKINS UNIV BALTIMORE MD DEPT OF PSYCHOLOGY
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Subjects in each of four experiments performed a selective attention task using two different response modes, a speech mode and a manual button-pressing mode. All four experiments demonstrated that if analyzing a stimulus and producing a response required similar kinds of processing, the task was easy, while if analyzing the stimulus and producing the response required different kinds of processing, then the task was difficult. This compatibility relationship between stimuli and responses also affected the amount of interference subjects suffered. If identifying values on a stimulus dimension and responding required similar kinds of processing, then that stimulus dimension was hard to filter out when it was noncriterial. Author