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A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
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Spreading activation in nonverbal memory networks.

Paul S Foster1,2, Candias Wakefield1, Scott Pryjmak1

  • 1Middle Tennessee State University, Murfreesboro, TN, USA.

Brain Informatics
|November 30, 2016
PubMed
Summary
This summary is machine-generated.

This study explored spreading activation in visuospatial memory. Findings suggest a link between right hemisphere function and visuospatial spreading activation, supporting its existence in these networks.

Keywords:
Design fluencyFrontal lobeMemoryNeuropsychological testsRight hemisphereSpreading activationVerbal fluencyVisuospatial

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Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • Spreading activation theories traditionally focus on semantic memory networks.
  • Separate verbal and visuospatial memory systems suggest potential for spreading activation in visuospatial domains.

Purpose of the Study:

  • To investigate the existence of spreading activation within visuospatial memory networks.
  • To develop and describe a design frequency corpus as a measure of visuospatial spreading activation.
  • To examine the relationship between visuospatial spreading activation, right hemisphere functioning, and verbal memory spreading activation.

Main Methods:

  • Utilized word frequencies (Controlled Oral Word Association Test) for verbal spreading activation.
  • Employed design frequencies (Ruff Figural Fluency Test) as a measure of visuospatial spreading activation.
  • Correlated average word and design frequencies with measures of left and right cerebral functioning.

Main Results:

  • A significant positive relationship was found between right posterior functioning (Block Design) and design frequency.
  • A significant negative relationship emerged between semantic memory spreading activation and design frequency.

Conclusions:

  • The study's hypotheses were supported, indicating the presence of spreading activation in visuospatial memory networks.
  • Further research is warranted to explore parameters modulating visuospatial spreading activation, including neurotransmitter influences.