When the brain receives sensory signals from an object in the environment which the brain needs to process into an initial impression, the Amygdala and the Posterior Cingulate Cortex are the most active regions of the brain.
In previous research:
The amygdala has been associated with emotional learning about objects.
The posterior cingulate cortex is associated with decision-making and assigning value to rewards.
The amygdala and posterior cingulate cortex are associated with value processing in several domains.