Decay Theory in AP Psychology

Definition

Decay theory proposes that memory loss occurs when the connections between neurons, which encode memories, weaken over time. This theory suggests that forgetting happens due to the natural decay of these neural pathways.

Theoretical Perspectives

Decay theory is grounded in cognitive psychology and posits that memory fades due to the mere passage of time. Information is lost from storage if not used or retrieved.

Study And Research Findings

Research by Ebbinghaus on forgetting curves provided early empirical support, suggesting a rapid initial loss of memory, which levels off over time. Subsequent studies have explored variables affecting decay rates.

Related terms

Interference:

Interference refers to when new or old information disrupts the ability to remember something accurately. It can occur in two forms: proactive interference (when old information interferes with new learning) or retroactive interference (when new information interferes with remembering old information).

Retrieval Failure:

Retrieval failure occurs when we have trouble accessing stored memories even though they are still intact. It is often described as "tip-of-the-tongue" phenomenon where a person knows they know something but struggles to retrieve it at that moment.

Encoding Specificity Principle:

The encoding specificity principle states that retrieval is more successful when the context of encoding matches the context of retrieval. In other words, people tend to remember information better if they are in a similar environment or state of mind as when they initially learned it.