<p style="text-align:left"><strong>We, as adults, experience a unified conscious world by integrating various scattered pieces of information from the external environment. To experience consciousness by integrating individual features into one, it is believed that not only aggregating information from lower to higher visual areas but also the 'feedback processing,' where information is sent back from higher to lower visual areas in the brain, plays a crucial role. While it is known that this process is crucial in the integration of features, its development has not been fully understood until now.</strong></p>
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