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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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System of Memory01:23

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Memory is categorized into three major systems: sensory memory, short-term memory (STM), and long-term memory (LTM). These systems differ in their capacity and the duration for which they can hold information. Sensory memory captures raw sensory input from the environment, holding it for just a few seconds or less. For example, on hearing a brief, loud sound, like a car horn honking, the sound seems to linger in the mind for a moment even after it stops. This is an instance of sensory memory...
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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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Long-Term Memory01:18

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Long-term memory is a relatively permanent type of memory, capable of storing vast amounts of information over extended periods. Its storage capacity is generally considered unlimited.
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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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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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A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
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Media multitasking and memory: Differences in working memory and long-term memory.

Melina R Uncapher1,2, Monica K Thieu3,4, Anthony D Wagner3,5,4

  • 1Department of Psychology, Stanford University, Stanford, CA, 94305, USA. melina.u@stanford.edu.

Psychonomic Bulletin & Review
|July 31, 2015
PubMed
Summary
This summary is machine-generated.

Heavy media multitasking (HMM) is linked to poorer working memory (WM) and long-term memory (LTM) performance. This cognitive difference may stem from increased attentional impulsivity, impacting how individuals process information.

Keywords:
AttentionDistractor filteringEpisodic memoryImpulsivitySignal detection theory

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Area of Science:

  • Cognitive Psychology
  • Media Psychology
  • Neuroscience

Background:

  • Media multitasking, the simultaneous use of multiple media streams, is increasingly prevalent in the 21st century.
  • This behavior is associated with cognitive differences, including attention difficulties and impulsivity.
  • Understanding the cognitive profile of media multitaskers is crucial due to its widespread nature across age groups.

Purpose of the Study:

  • To investigate the relationship between chronic media multitasking and performance on working memory (WM) and long-term memory (LTM) tasks.
  • To explore the underlying cognitive mechanisms, such as attentional scope and impulsivity, associated with media multitasking.

Main Methods:

  • Comparison of cognitive performance between heavy media multitaskers (HMMs) and light media multitaskers.
  • Assessment of working memory (WM) performance under conditions with and without external distraction.
  • Evaluation of long-term memory (LTM) performance and its correlation with WM abilities.
  • Measurement of attentional impulsivity and decision bias in relation to media multitasking behavior.

Main Results:

  • Heavy media multitaskers (HMMs) demonstrated significantly lower working memory (WM) performance, irrespective of distraction.
  • Reduced WM performance was a predictor of lower long-term memory (LTM) performance.
  • Differences in memory performance were attributed to discriminability rather than decision bias.
  • Attentional impulsivity correlated positively with media multitasking and negatively with WM performance.

Conclusions:

  • Chronic media multitasking is associated with a wider attentional scope and higher attentional impulsivity.
  • This wider attentional scope may lead to increased interference from goal-irrelevant information, impairing WM.
  • Diminished WM capacity in HMMs consequently leads to reduced LTM performance, affecting the ability to utilize past information.