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Related Concept Videos

Working Memory01:24

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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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Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
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Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
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The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
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Related Experiment Video

Updated: Jan 10, 2026

Block Building Task Identifies Distinct Groups of Left/Right-hand Choice Patterns After Unilateral Peripheral Nerve Injury
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Handedness and Working Memory: Exploring Modality-Specific Effects.

Eyal Heled1,2, Gaya Asher1, Matan Kenigsbuch1

  • 1Department of Psychology, Ariel University, 3 Kiryat Hamada St., Ariel, 40700, Israel.

Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists
|November 29, 2025
PubMed
Summary
This summary is machine-generated.

Working memory (WM) performance varies by modality and handedness. Left-handers excel in visual tasks, while right-handers show an advantage in tactual recall, impacting neuropsychological assessments.

Keywords:
Digit SpanHandednessTactual SpanVisuospatial SpanWorking memory

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Area of Science:

  • Neuroscience
  • Cognitive Psychology

Background:

  • Working memory (WM) differences between right- and left-handers are inconsistent across visual and verbal tasks.
  • The tactual modality's role in WM differences related to handedness remains unexplored.

Purpose of the Study:

  • To compare working memory performance in right- and left-handers across visual, verbal, and tactual modalities.
  • To investigate modality-specific advantages and disadvantages related to handedness in working memory.

Main Methods:

  • Thirty-two right-handers and thirty left-handers completed Digit Span (verbal), Visuospatial Span (visual), and Tactual Span tasks.
  • Both forward and backward recall conditions were assessed for each modality.

Main Results:

  • No overall difference in working memory ability was found between left- and right-handers.
  • Tactual Span task scores were significantly lower than visual and verbal span scores for all participants.
  • Left-handers showed superior performance on the forward Visuospatial Span task.
  • Right-handers outperformed left-handers on the backward Tactual Span task.

Conclusions:

  • Hemispheric lateralization patterns associated with handedness confer modality-specific advantages in working memory.
  • Both handedness and sensory modality are crucial factors for interpreting working memory performance.
  • Findings suggest refining neuropsychological assessments to account for these modality- and handedness-specific effects.