I believe the answer is: all people use the same neural processes to make perceptual judgements, but there are cultural differences in what people pay attention to and in how they think about what they see
This mean that even when people from different culture are observing the same information, they conclusion that they create from the observation could be extremely different from one another. They would first have to match the information with their own cultural norms and make the conclusion that is not deviating from the norms.