How do decisions act as a filter in the communication model?
These are the past decisions about who we are and what we are capable of. They affect the decisions that we are faced with in the present. Past decisions are what create our present values, beliefs and attitudes, therefore they influence how we respond to current situations.
Decisions may create new beliefs, or may just affect our perceptions through time. The problem with many decisions is that they were made either unconsciously or at a very early age, and are forgotten. But the effect is still there.