India, Feb. 16 -- Fifty-four people in a Boston lab, wired to EEG monitors, writing essays over four months. Three groups: one using ChatGPT, one using a search engine, one using nothing but their own minds. The MIT Media Lab study, published in June 2025, found that LLM users displayed the weakest brain connectivity of any group - up to 55% lower cognitive engagement than those working unaided. Over four months, the deficit compounded. When ChatGPT users were reassigned to work without AI, the reduced connectivity persisted and they struggled to recall their own arguments. The researchers called it "cognitive debt". India is now one of the leading geographies in terms of generative AI users. It plans AI curriculum for young schoolchildren,...