What type of research has influenced the notion of the brain's plasticity?

What will be an ideal response?

A good answer would include the following key points:
• Work with nonhumans has helped reveal the nature of the brain's plasticity.
• Studies have compared rats raised in an unusually visually stimulating environment to those raised in more typical and less interesting cages.
• Results show that areas of the brain associated with vision are both thicker and heavier for the rats reared in the enriched environment.
• Thus, indicating the environmental influences on brain development, and the notion that a developing structure is modifiable due to experience.