In Tests of Self-Concept, by What Age Can Most Western

question 108

Multiple Choice

In tests of self-concept, by what age can most Western infants recognize themselves in a mirror?

• A) Approximately five months old
• B) Approximately one year old
• C) Approximately 18 months old
• D) Approximately two years old

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Definitions:

Melatonin Production

The process by which the pineal gland in the brain secretes melatonin, a hormone that regulates sleep-wake cycles.

Circadian Rhythms

Internal biological clocks that regulate various physiological processes and behaviors on approximately a 24-hour cycle, including the sleep-wake cycle.

Seasonal Affective Disorder

A type of depression that occurs at a specific time of year, usually during winter, when there is less natural sunlight.

Cyclothymic Disorder

A mental disorder characterized by mood swings that are less severe than those in bipolar disorder.