The tendency to remember items towards the end of a list is known as the recency effect. Unlike primacy, the recency effect is not influenced by changes in presentation rates and list length. Instead, psychologists have found that asking participants to list the items in the ‘order they were presented’ decreases the recency effect. Additionally, Glanzer and Kunitz's famous 1966 study found that delaying the retention period (the time between the presentation of the last item and recall test) by just 30 seconds, got rid of the recency effect. Interestingly in 1990, researchers tried to engage participants with a ‘distractor task’ during the retention period. This is a task that suppresses short-term memory (rehearsal), for example counting backward from 3. And results showed that the presence of a distractor task also eliminated the recency effect.