Task, time and context as potential mediators of repetition priming effects

In apparent conflict with the synchronicity model, we consider three types of evidence from the auditory literature (negative priming, perceptual learning, sensory gating) that reveal stimulus repetition can be associated with decreased rather than increased early evoked responses. The difficulty with consolidating a wide range of tasks in adjudicating between theories of repetition priming might be because the potentially critical roles of task, time and context are neglected.