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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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Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
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Visual working memory for semantically related objects in healthy adults.

I García-Magariño1, J T Fox-Fuller2,3, G Palacios-Navarro4

  • 1Universidad Complutense de Madrid, Madrid, España.

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|October 9, 2020
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Semantic relatedness and increased object load in visual working memory tasks require more processing time. Higher educational attainment correlates with faster, more accurate responses, suggesting a link between education and cognitive task performance.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Factors

Background:

  • Limited research exists on how semantic object relationships affect visual working memory (VWM).
  • Understanding these effects is crucial for designing effective cognitive tasks and interventions.

Purpose of the Study:

  • To investigate the impact of semantic relatedness and object load on VWM accuracy and reaction time.
  • To utilize a novel mobile-tablet cognitive task for assessing these effects in healthy adults.

Main Methods:

  • Employed a delayed matching-to-sample paradigm on a tablet-based cognitive task.
  • Assessed 76 adults using sets of 4 or 6 semantically related/unrelated objects.
  • Recorded accuracy and reaction time for all task conditions.

Main Results:

  • Semantically related objects led to longer reaction times with increased set size (6 vs. 4 objects).
  • Older age correlated with slower reaction times, but not accuracy.
  • Lower educational attainment (median 16 years) was linked to reduced accuracy and slower reaction times in related object conditions.

Conclusions:

  • Increased object load and semantic relatedness in VWM demand more cognitive processing time.
  • Higher educational attainment may enhance cognitive task efficiency, potentially due to greater technological familiarity.