Question Detail
Question
Expansion of which one of the following regions of brain during evolution is responsible for the greater intelligence of man?
Correct Answer
Option B is the correct answer.
Detailed Explanation
The neocortex (also called isocortex) is the part of the cerebral cortex responsible for higher-order functions such as sensory perception, cognition, spatial reasoning, and language. Its disproportionate expansion in humans, particularly the prefrontal cortex, is directly associated with greater intelligence and complex cognitive abilities. The allocortex (archicortex and paleocortex) includes the hippocampus and olfactory cortex and is phylogenetically older.
Hint
Which region of the cerebral cortex is most associated with higher cognitive functions and has undergone the greatest expansion in human evolution?