Regis, a 6-Year-Old, Can Correctly Name Objects, Catch a Ball

question 63

Multiple Choice

Regis, a 6-year-old, can correctly name objects, catch a ball and throw it, and write his ABCs in proper sequence. His younger brother Mark is much less speedy and skillful in all of these areas. What is the best explanation for Regis's superior performance?

• A) Regis most likely eats healthier foods than Mark.
• B) Regis's brain has experienced greater myelination than Mark's.
• C) Regis's frontal cortex is less mature than Mark's.
• D) Regis has fewer dendrites than Mark.

---

Definitions:

Sensation

The process by which sensory receptors and the nervous system receive and represent stimulus energies from the environment.

Stimulus

Anything in the environment that elicits a response from an organism, crucial in behaviorist theories of learning and conditioning.

Axons

Long, slender projections of nerve cells, or neurons, which conduct electrical impulses away from the neuron's cell body.

Dendrites

Branch-like extensions from the neuron's cell body, which receive electrical messages from other nerve cells.