Does experience modulate automatic imitation? A new look

Automatic imitation is a stimulus-response compatibility effect wherein observing an action automatically influences motor performance. However, the mechanism under lying this effect remains controversial. Associative Sequence Learning suggests that automatic imitation arises from contingent visual and motor activity associations. Prior studies have shown that exposure to counter-imitative training can alter these visuomotor associations, suggesting that automatic imitation can be modulated by experience. Here, we aim to bring new insight into how this modulation occurs by exploring the time course of automatic imitation before and after counter-imitative training. If automatic imitation is merely a result of contingent associations, as previ ously suggested, the effect should consistently be modulated following such train ing. However, our findings show that automatic imitation is not significantly reduced after counter-imitative training at all the tested time points. This suggests that auto matic imitation does not depend on contingent association, at least not as currently understood.