Movie directors discovered that they can film different parts of the same scene on different days, and most viewers would not detect that the extras (background actors) had changed clothes or appearance. Psychologists call this failure to notice such differences

Change blindness

Explanation: Change blindness occurs when an individual is blind to changes occurring to objects with which they are actively engaged. This usually occur due to perception of vision which occurs when a stimulus undergoes a change without this being noticed by its observer.

countries such as spain, france and portugal colonized the region. although most of latin america was colonized by spain, the countries of portugal and france also had major influences on the region. due to war and disease, native populations were decimated.

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