Related Experiment Video
Updated: Jun 4, 2026
10:38
A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
Published on: July 16, 2015
Effects of simultaneous interference upon free recall learning and retention
1University of Colorado, 80309, Boulder, Colorado.
Memory & Cognition
|February 3, 2011
Summary
Intratask interference during learning can slow down the learning process but may enhance long-term memory retention. This effect is linked to more detailed memory encoding.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Memory Studies
Background:
- Understanding how interference affects learning and memory is crucial for educational and therapeutic interventions.
- Intratask interference, occurring simultaneously with a primary learning task, presents a unique challenge to cognitive processing.
Purpose of the Study:
- To investigate the impact of varying levels of intratask interference on both the learning and retention of word lists.
- To determine if the relatedness of interfering information influences learning efficiency and memory recall.
Main Methods:
- Participants learned an auditory word list while processing a concurrent visual list, with interference levels manipulated by list relatedness.
- Some participants received explicit instruction on subcategory knowledge within the learning list.
Main Results:
- Increased interference prolonged the learning phase but, in some conditions, improved subsequent retention.
- Knowledge of restricted categories aided learning but did not affect retention.
- Long-term retention (5 weeks) was superior for participants exposed to higher, related interference.
Conclusions:
- High intratask interference, particularly with related stimuli, may promote more elaborate encoding, leading to better long-term memory recall.
- The findings suggest a trade-off between learning speed and memory durability under interference conditions.
More Related Videos
Related Concept Videos
01:16Interference and Decay
Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
01:21Forgetting
Forgetting is an intrinsic aspect of human memory, characterized by the gradual loss or inaccessibility of information over time. Hermann Ebbinghaus, a pioneering psychologist, extensively studied this phenomenon and formulated the forgetting curve. This curve illustrates that memory loss occurs rapidly immediately after learning and then decelerates over time. Several mechanisms contribute to forgetting, including encoding failure, storage decay, retrieval failure, and interference.
Encoding...
Encoding...
01:07Interference and Superposition of Waves
When two waves of the same nature occur in the same region simultaneously, they result in interference. Interference of waves implies that the net effect of the waves is the sum of the individual waves' effects. However, it does not imply that the individual waves affect the propagation of other waves.
Interference occurs in mechanical waves, such as sound waves, waves on a string, and surface water waves. Mechanical waves correspond to the physical displacement of particles. Hence,...
Interference occurs in mechanical waves, such as sound waves, waves on a string, and surface water waves. Mechanical waves correspond to the physical displacement of particles. Hence,...
00:53Sound Waves: Interference
Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
01:10Interference: Path Lengths
Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
01:26Higher Mental Functions of Brain: Learning and Memory
Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or playing an...