Question

If all we do is forget in a study, how could you show which theory is correct? Would you be able to tell the difference between the types of forgetting theories?

Answer 1

When one forgets information from short term memory (STM), it can be explained using the theories of trace decay and displacement. If one forgets from long term memory (LTM), it can be explained using the theories of interference. The therories and their differences can be explained in their definition. They are as follows:

• Decay theory: It is a physical explanation of forgetting based on the assumption that when something new is learned, a memory trace or neural imprint of the experience is formed in the brain. This trace gradually fades over time through disuse unless it is reactivated by being used.
• Interference theory: It shows that forgetting in long-term memory occurs because other memories interfere with retrieval of what you are trying to recall, particularly if the other memories are similar to the one you are trying to remember.
• Motivated forgetting: When forgetting in long-term memory arises from a strong desire to forget, usually because the experience is too upsetting to remember.
• Retrieval failure theory: It proposes that forgetting due to lack of use of the right cue to retrieve information stored in memory.
• Retroactive interference: When new information interferes with the ability to remember old information.