When Responding to Stimulation of the Outer Margin of the Sole

question 125

Multiple Choice

When responding to stimulation of the outer margin of the sole of the foot,a 1-year-old infant extends her great toe without fanning of the other toes.This happens because:

• A) the corticospinal fibers have become fully myelinated and the Babinski reflex becomes suppressed.
• B) the corticospinal fibers have not yet become fully myelinated and the Babinski reflex is activated.
• C) the sensory fibers in the ophthalmic branch of the fifth cranial nerve are mediated by reflex arcs.
• D) a deep reflex is mediated by a two-neuron spinal arc.

Understand the impact of perceived similarity and shared experiences on the willingness to help.

Acknowledge the psychological and social factors affecting gender differences in helping behaviors.

Recognize the impact of violent media on empathy levels.

Understand the empirical evidence supporting the empathy-altruism hypothesis.

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Definitions:

Bondholder's Risk

The risk that a bond issuer will default, resulting in the loss of both periodic interest payments and the principal investment to the bondholder.