At What Age Do Smiles Coupled with the Duchenne Marker

question 98

Multiple Choice

At what age do smiles coupled with the Duchenne marker (eye constriction) occur?

• A)2 to 3 months
• B)4 to 6 weeks
• C)2 to 6 months
• D)6 to 12 months

---

Definitions:

Operant Conditioning

A learning process in which the strength of a behavior is modified by reinforcement or punishment, a key concept in behavioral psychology.

Classical Conditioning

A learning process in which a biologically potent stimulus is paired with a previously neutral stimulus to elicit a response that was originally elicited only by the potent stimulus.

Defence Mechanisms

Unconscious psychological strategies brought into play by various entities to cope with reality and maintain self-image.

Freud's Thinking

Refers to the ideas and theories developed by Sigmund Freud, which include the psychoanalytic theory of personality development and the concepts of the id, ego, and superego.