When Comparing the Brains of Rats Raised in a Rich

question 156

Multiple Choice

When comparing the brains of rats raised in a rich environment requiring lots of learning and motor behavior with the brains of rats raised as "couch potatoes" (Greenough,1990) ,the cerebellums of the more active rats

• A) contained more neuronal connections and dendrites.
• B) contained fewer neuronal connections but more axons and dendrites.
• C) were less likely to possess pathological neurotransmitter circuits.
• D) were exactly the same as the inactive rats.

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Definitions:

Orbital Frontal Cortex

A region of the prefrontal cortex located just above the eyes that is involved in decision-making, impulse control, and responding to rewards.

Social Context

is the immediate physical and social setting in which people live or in which something happens or develops. It includes the culture that the individual is educated or lives in, and the people and institutions with whom they interact.

Amygdala

A part of the brain involved in emotion regulation, emotional learning, and forming memories associated with emotional events.

Nucleus Accumbens

A region in the brain's forebrain that plays a central role in the reward circuit, associated with pleasure, reinforcement learning, and addiction.