Use your ideas about factors that affect thinking, decision making, and memory to draw conclusions about cognition and what it means to be a person. Include brain-based factors.

What it means to be a person is an issue that has been made substantially more complicated over the past century by the rise of artificial intelligence. One way to start thinking about it is via the "Turing Test". Imagine that you are communicating with an avatar in a computer chat room or on a social media site. You cannot see whether the avatar is being controlled by a human or a computer. How could you tell whether you were chatting with person or machine? Would a machine that could pass as human to most interlocutors in this situation be considered human? What the Turing test and recent studies on animal intelligence make us reconsider is whether we should consider "humanity" a matter of our physical or biological nature or something having to do with our abilities to think and feel. 
When we think about decision making, we general consider factors grounded in three mental characteristics, emotions, reason, and memory. All three of these are parts of how we define humanity. What makes us somewhat uncomfortable with considering a machine that passes a Turing test human is precisely our doubts concerning the ability of machines to experience emotion. Memory is a more complex challenge. The borderline cases might be a baby (or fetus) with few or no memories or an elderly person with dementia. In both cases, we have obviously biological humanity. In the case of the very young, we have a future memory-forming potential and in the case of someone with advanced dementia, a past capability. 
http://www2.psych.utoronto.ca/users/reingold/courses/ai/turing.html