Answer:
Your question is poorly written, but as far as what was read the best thing would be a longitudinal study since you could see the evolution over time of the twins.
Explanation:
Longitudinal studies, unlike cross-sectional studies, are studies that analyze a factor in a population over time, thus analyzing the possible variables that occurred in those years, months or days. In simple words, the evolution over time is what a longitudinal study is based on (On the other hand, not a transversal one, since it would investigate a specific problem at a specific moment in time)
Answer:
Do you want a technical answer or a simple one?
Explanation:
I think illusion or distraction
Answer: Amnesia or Alzheimer Disease
Explanation: i would think that because Alzheimer is were your memory slowly fades away and most people forget how to do daily things. Amnesia is from head trauma and has effected the Limbic system, which is what controls the emotions and memories we have....