When content that we previously learned interferes with the recall of something newly learned, the interference is:

Proactive inhibition occurs when previously learned content interferes with the recall of something newly learned.

Retroactive inhibition is the reverse, where newly learned content disrupts the recall of earlier learning.

Attention inhibition is the suppression of distracting stimuli, not an interference of learned material.

Response inhibition is the ability to hold back an inappropriate action, not a memory interference effect.

Both proactive and retroactive inhibition are forms of interference theory of forgetting.

Interference explains forgetting as competition between memories rather than mere decay.