In a Series of Studies by Meaney and Colleagues,rat Pups

question 323

Multiple Choice

In a series of studies by Meaney and colleagues,rat pups were randomly assigned to be raised by surrogate mothers who spent a lot of time licking and grooming (high LG) them or surrogate mothers who spent little time engaging in this behavior (low LG) .Rat pups raised by low LG surrogate grow up to be _____ fearful in novel situations,which can be attributed to a(n) _____ in DNA methylation.

• A)less;increase
• B)less;decrease
• C)more;increase
• D)more;decrease

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Definitions:

Falling Asleep

The transition from wakefulness to sleep, characterized by gradual decrease in consciousness and responsiveness to external stimuli.

Alertness

The state of being watchful and ready to respond quickly to potential danger or opportunities.

Sleepier

The state or quality of feeling or being more inclined to sleep or tiredness.

Awake

The state of being conscious, alert, and aware of one's surroundings.