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Related Concept Videos

Working Memory01:24

Working Memory

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 information.
Interference and Decay01:16

Interference 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...
High-Level and Low-Level Awareness01:19

High-Level and Low-Level Awareness

Controlled processes in human consciousness represent high-alert mental states where individuals deliberately focus their attention on achieving specific goals. Controlled processes can be seen in situations like mastering new technology, where a person might become so absorbed that they ignore surrounding distractions. Such processes involve selective attention, requiring one to concentrate on particular elements of experience while disregarding others. These are governed by executive...
Role of Cerebellum and Prefrontal Cortex in Memory01:14

Role of Cerebellum and Prefrontal Cortex in Memory

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 cerebellum's...

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Related Experiment Video

Updated: Jun 1, 2026

The Rodent Psychomotor Vigilance Test (rPVT): A Method for Assessing Neurobehavioral Performance in Rats and Mice
07:47

The Rodent Psychomotor Vigilance Test (rPVT): A Method for Assessing Neurobehavioral Performance in Rats and Mice

Published on: December 29, 2016

Working memory load and the vigilance decrement.

William S Helton1, Paul N Russell

  • 1Department of Psychology, University of Canterbury, Private Bag 4800, Christchurch, New Zealand. Deak.Helton@canterbury.ac.nz

Experimental Brain Research
|June 7, 2011
PubMed
Summary
This summary is machine-generated.

Cognitive load from working memory tasks worsens vigilance, impacting target detection. This suggests vigilance decline stems from high cognitive demands, not boredom.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Factors

Background:

  • Vigilance tasks assess sustained attention.
  • The cause of vigilance decrement is debated: cognitive overload vs. underload.
  • Working memory is crucial for cognitive tasks.

Purpose of the Study:

  • Investigate how verbal and spatial working memory demands affect vigilance.
  • Determine if working memory load exacerbates vigilance decrement.
  • Clarify the cognitive resource demands underlying vigilance decline.

Main Methods:

  • 745 participants completed an alpha-numeric target detection task.
  • Concurrent tasks included spatial or verbal working memory loads.
  • Control groups performed the detection task without memory load.

Main Results:

  • Concurrent working memory load significantly worsened vigilance decrement.
  • Both response times and perceptual sensitivity were negatively impacted.
  • Spatial and verbal loads similarly affected performance, suggesting shared resources.

Conclusions:

  • Vigilance decrement is exacerbated by high cognitive resource demands.
  • Working memory load highlights the effortful nature of sustained attention.
  • Findings support the cognitive load theory of vigilance decline.