preception       
noun [ C ]  formal uk/prɪˈsep.ʃən/ us/prɪˈsep.ʃən/
 假设,成见
a belief or opinion formed before enough information is available to form it correctly
  This programme challenges stereotypes and preceptions of the African continent. 这个节目挑战了人们对非洲大陆的刻板印象和成见。 
 - More examples
 - Astonishing leaps of intuition lead to daring preceptions about the day-to-day lives of ancient citizens.
 - There is a preception that war crime trials are yesterday's problem.
 - The change in share price reflects the change in investors' preceptions about the growth of the company in the future.