Johann lives in a family with five siblings. There is always a lot of activity and interaction between the children and parents, and there are many brightly colored toys to play with. Suzanne's family can't afford many toys, and she only has old hand-me-downs to play with, most of which are broken. Which of the following best describes a likely difference in brain development between Johann and Suzanne?
◦ The "use it or lose it" principle would indicate that because Johann is in a more stimulating environment than Suzanne, his brain will have a denser network of neurons and synapses.
◦ Johann's neurons will myelinate more quickly and completely than Suzanne's.
◦ Because Johann and Suzanne are both under two years of age, the differences in environment will have little impact on their continuing development.
◦ The principle of synaptic pruning indicates that because Johann is in a more stimulating environment than Suzanne, his brain will have a smaller number of synapses.
Exploring the functional activity of brain regions by using fMRI scans.
Albatrosses, of the biological family Diomedeidae, are large seabirds
family nursing
Summary of Cytokine Activity
My family
X-linked recessive inheritance of red-green color blindness in a family