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Related Concept Videos

Working Memory01:24

Working Memory

444
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
444
Interference and Decay01:16

Interference and Decay

203
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...
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Chunking and Rehearsal in Sensory Memory01:22

Chunking and Rehearsal in Sensory Memory

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Improving short-term memory can be achieved through techniques like chunking and rehearsal. Chunking involves organizing information into larger, more manageable units. This technique is particularly useful for information that exceeds the typical memory span of between five and nine items. For instance, logging into an online account with a password like "ta89vq0179gz" involves grouping letters and numbers into three chunks—ta89, vq01, and 79gz. It makes large amounts of...
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Related Experiment Video

Updated: Sep 11, 2025

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
10:38

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The Association between Oscillatory Burst Features and Human Working Memory Accuracy.

Brian C Kavanaugh1,2, Megan M Vigne3, Ryan Thorpe2

  • 1E. P. Bradley Hospital, Riverside, RI.

Journal of Cognitive Neuroscience
|August 14, 2025
PubMed
Summary
This summary is machine-generated.

Brain activity involves distinct oscillatory bursts for working memory (WM). Successful WM relies on a dynamic interplay between alpha/beta and high-frequency activity bursts, with less variation linked to performance errors.

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Electrophysiology

Background:

  • Oscillatory power in various frequency bands is linked to working memory (WM) processes.
  • Previous findings on averaged power are influenced by transient oscillatory burst events.
  • The interaction between different burst events in human WM remains unclear.

Purpose of the Study:

  • Investigate the dynamics between alpha/beta and high-frequency activity (HFA) bursts in human WM.
  • Examine burst features and error-related deviations during WM encoding and maintenance.
  • Understand the interplay of different burst events in cognitive tasks.

Main Methods:

  • Utilized electroencephalography (EEG) in healthy adults performing a Sternberg WM task.
  • Analyzed oscillatory burst features (rate and power) in alpha, beta, and HFA bands.
  • Examined burst dynamics at frontal and parietal electrodes during encoding and delay phases.

Main Results:

  • Averaged power dynamics were primarily driven by oscillatory burst rate and power.
  • Alpha/beta bursts decreased during encoding and increased during delay.
  • High-frequency activity (HFA) bursts showed an inverse pattern, increasing during encoding and decreasing during delay.
  • Reduced variation in burst dynamics correlated with incorrect responses and poorer performance.

Conclusions:

  • Successful human WM depends on a dynamic interplay between alpha/beta and HFA bursts.
  • Burst dynamics reflect a potential therapeutic target for WM deficits in clinical populations.
  • Understanding burst event interactions provides novel insights into cognitive function.