You study Spanish during high school but then take Portuguese when you are in college. You have trouble learning Portuguese because the Spanish you learned in high school keeps coming to mind. This outcome is most likely due to.

Explanation:

Proactive interference is a type of interference in which the old memories restrain the capacity to remember the new information.  It is common and happens to everyone.  

Example: If you recently learned the names of different countries in Asia and later you try to learn the names of various countries in Africa.

If you are asked to recall the names of African countries, you might mix up countries of both continents.  The information appears to be jumping in front of each other, it is an example of proactive interference.  

In simple terms it occurs when the past memories hold back a person from retaining new memories.

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