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Related Concept Videos

Working Memory01:24

Working Memory

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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...
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Revisionist Views of Adolescent and Adult Cognition01:24

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A revisionist approach to Jean Piaget's theory of cognitive development has brought new insights that challenge and reinterpret his established ideas. Piaget proposed that the formal operational stage, emerging in adolescence, represents the culmination of cognitive maturity. During this stage, individuals are said to develop abstract thinking, engage in systematic problem-solving, and show a form of egocentrism, believing others are as preoccupied with their behavior as they are...
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Role of Cerebellum and Prefrontal Cortex in Memory01:14

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The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the...
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Information Processing Approach01:30

Information Processing Approach

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The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is...
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Understanding Memory01:19

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Memory is the retention of information or experiences over time, facilitated through three main processes: encoding, storage, and retrieval. Encoding is the process of inputting information into the memory system. For instance, when listening to a lecture, watching a play, reading a book, or having a conversation, the brain is actively encoding information. This initial stage involves transforming sensory input into a form that can be processed and stored by the brain. Various factors, such as...
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Higher Mental Functions of Brain: Learning and Memory01:26

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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...
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Related Experiment Video

Updated: Oct 5, 2025

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
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The Enigma of Working Memory: Changing Views.

R Douglas Fields1

  • 1Nervous System Development and Plasticity Section, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA.

The Neuroscientist : a Review Journal Bringing Neurobiology, Neurology and Psychiatry
|January 27, 2022
PubMed
Summary
This summary is machine-generated.

Working memory relies on sustained neuron firing, not transient plasticity. Reanalyzing EEG data confirms persistent electrical activity, challenging theories of hidden working memory states.

Keywords:
EEGattentionfMRIhidden statesshort-term memorysubliminal perceptionsynaptic plasticityworking memory

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Area of Science:

  • Neuroscience
  • Cognitive Science

Background:

  • Working memory is crucial for cognition, consciousness, and disease, but its cellular mechanisms are debated.
  • Previous studies proposed transient synaptic plasticity for temporary information encoding in dynamic neural ensembles.

Purpose of the Study:

  • To re-evaluate the mechanisms underlying working memory maintenance.
  • To investigate the role of electrical activity versus transient plasticity in working memory.

Main Methods:

  • Reanalysis of electroencephalography (EEG) data from previous studies.
  • Examination of neural activity signatures during working memory tasks.

Main Results:

  • A persistent, electrically active signature was identified in EEG recordings throughout working memory tasks.
  • This finding supports the hypothesis that working memory is encoded by sustained action potential firing.

Conclusions:

  • The study challenges the concept of a hidden working memory state maintained by transient plasticity.
  • Evidence increasingly points towards sustained neural firing as the primary mechanism for working memory encoding.
  • The existence of electrically silent mechanisms for unconscious working memory remains an open, challenging question.