What is imitative behavior?

It is the reproduction by one individual of an action observed in another. In the strict sense psychologists use, true imitation means copying the specific means by which the action is performed, not merely achieving the same result.

How is imitation different from emulation?

Emulation copies only the goal: the observer, having seen that a result is achievable, brings it about by whatever means they like. True imitation copies the means—the demonstrator's particular method. Chimpanzees tend to emulate where children tend to imitate.

What are mirror neurons and do they explain imitation?

Mirror neurons fire both when an action is performed and when it is observed, and were proposed as the neural basis of imitation. Their role is contested: automatic imitation can be reversed by training, and many researchers argue the matches are learned rather than innate.

Do newborn babies imitate?

It is genuinely uncertain. A famous 1977 study reported that infants weeks old copied facial gestures, but a large preregistered 2016 study failed to replicate it, suggesting the early effect may have been general arousal rather than imitation.

What is automatic imitation?

It is the involuntary tendency to copy an observed movement. In the laboratory it is measured as a compatibility effect: people respond faster when an irrelevant observed movement matches their required response than when it mismatches.

What is over-imitation?

It is the human tendency to copy even the causally irrelevant parts of a demonstrated action. Children reproduce plainly useless steps that chimpanzees skip, a high-fidelity copying that may underwrite cultural transmission.

Why would copying useless actions be adaptive?

Because in most real learning the reason a step matters is invisible to the novice, so faithfully reproducing the whole sequence is cheaper and safer than guessing which parts are necessary—a default that pays when the demonstrator knows more than the learner.

Is imitation unique to humans?

No—many animals copy, and chimpanzees learn socially—but the high-fidelity copying of means, including over-imitation, is far stronger in humans and is a leading candidate for what makes human culture cumulative.

Imitative Behavior: Imitation, Emulation, and Over-Imitation

Imitative Behavior

What kind of copying is it?

Two questions carve the family of imitative behavior. Did the observer copy the demonstrator’s action form (the specific means)? And did they reproduce the goal (the end state)? Toggle each and watch the classification. The four cells are the categories shown in Figure 1.

True imitation. The observer reproduced the demonstrator's specific action form and brought about the same end. Copying the means is the defining mark of imitation proper.

The compatibility (congruency) effect

In an automatic-imitation task the observed movement is irrelevant, yet a matching movement speeds the response and a mismatching one slows it. The compatible mean is fixed at 452 ms; set the incompatible mean, the standard deviation of the difference, and the sample size, and watch the congruency effect, Cohen’s d, and the paired t. The defaults reproduce the article’s worked example. Values are illustrative and computed locally.

Incompatible RT487 ms

SD of difference70 ms

Participants (n)24

Congruency = 487 − 452 = 35 ms. Cohen’s d = 35 / 70 = 0.50 (medium effect). With n = 24, SE = 70/√24 = 14.29 ms, so t(23) = 2.45, conventionally significant.

Over-imitation and the transparent box

A demonstrator opens a puzzle box with two actions: one that does nothing (tapping the top) and one that releases the latch. When the box is opaque, the causal structure is hidden; when it is transparent, the pointlessness of the first action is plain to see. Choose the learner and the box, and compare how often the causally irrelevant step is copied. Rates are illustrative of the Horner & Whiten pattern.

Over-imitation. The child keeps copying the useless step at 75% even though the transparent box makes its irrelevance obvious. High-fidelity copying of the means overrides efficiency.

External Links

Imitative Behavior (D007100)MeSH descriptor
Imitative Behavior (NCBI MeSH)NCBI MeSH term page

Imitative Behavior

Related Topics

External Links