Question

All of the following cortical changes are a consequence of enrichment EXCEPT:

a. a 13% increase in dendritic length.
b. a 25% increase in the number of synapses.
c. a 20% increase in vascular volume.
d. a 10% increase in astrocyte processes.

Answer 1

The incorrect answer regarding cortical changes as a consequence of enrichment is a 10% increase in astrocyte processes, as this is not typically cited as a result of enrichment.

Step-by-step explanation:

The question is asking which of the listed cortical changes is not a consequence of enrichment. Enrichment in this context refers to environmental or experiential factors that lead to changes in the brain's structure and function. Three of the options listed are well-documented effects of environmental enrichment on the brain:

• A 13% increase in dendritic length, which allows for more connections between neurons.
• A 25% increase in the number of synapses, enhancing communication between neurons.
• A 20% increase in vascular volume, possibly reflecting improved blood supply and, by extension, nutrient delivery to brain tissue.

The remaining option, a 10% increase in astrocyte processes, is not typically cited as a direct result of enrichment, making it the correct answer.