I want to say that biology is the answer.
you can get an illness that is triggered by stress. That's the simplest way I can explain it.
Answer:
the growth of his corpus callosum
Explanation:
Alden is beginning of learning, and her coordination from right to left right is due to the growth of his corpus callosum. As the growth of his corpus callosum is responsible and made from fibers which play role to communicate two different sides of mind i-e right hemisphere and left hemisphere. corpus callosum is like message transmitter from one to another hemisphere.
Answer: Echoic memory
Explanation: Since Jamal's brother was not listening to what he was saying and can still easily recap some of what he said for the last few seconds he is using his echoic memory to recollect those information.
Echoic memory is a type of sensory memory used by the auditory system. Echoic memory can store a large amount of auditory information, but only for few seconds (3 - 4 seconds). This echoic sound is replayed in the brain for this short period of time immediately after the presentation of the auditory stimulus.