Answer:
Basing the interpretation of context on assumption or prior knowledge makes top-down processing vulnerable.
Top down processing describes a processing techniques whereby interpretation of new or incoming information is performed based on past experience or knowledge.
The vulnerability or disadvantage of this process is that, it relies on prior knowledge or assumption about the scenario at hand.
Reliance on careful interpretation of sensory information is a characteristic of bottom - up processing.
Therefore, the fact that initial judgment is based on assumption is a vulnerability of top-down processing.
