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Related Experiment Video

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A Within-Subject Experimental Design using an Object Location Task in Rats
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Published on: May 6, 2021

Task-selective memory effects for successfully implemented encoding strategies.

Eric D Leshikar1, Audrey Duarte, Christopher Hertzog

  • 1Department of Psychology, Brandeis University, Waltham, Massachusetts, United States of America. leshikar@Brandeis.edu

Plos One
|June 14, 2012
PubMed
Summary
This summary is machine-generated.

Visual imagery and sentence generation strategies enhance memory. Brain activity in specific regions, like the left precuneus, correlated with successful visual imagery, suggesting brain regions support memory based on encoding operations.

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Last Updated: May 21, 2026

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Area of Science:

  • Cognitive Neuroscience
  • Neuroimaging

Background:

  • Instructed strategy use, such as visual imagery and sentence generation, aids associative memory formation.
  • Brain regions involved in memory may reflect specific mental operations during encoding.

Purpose of the Study:

  • To investigate if task-selective memory effects emerge when encoding strategies are successfully implemented.
  • To explore the neural correlates of successful visual imagery and sentence generation during associative memory tasks.

Main Methods:

  • Participants studied abstract noun pairs using visual imagery or sentence generation instructions.
  • Self-reported success in generating mediators and the quality of mediators were recorded.
  • fMRI data were collected during the encoding phase.

Main Results:

  • Task-selective memory effects for visual imagery were observed in the left middle occipital gyrus, left precuneus, and lingual gyrus.
  • No task-selective effects were found for sentence generation.
  • Left precuneus activity correlated with the vividness of mental images generated during visual imagery encoding.

Conclusions:

  • Brain regions support memory in accordance with the specific encoding operations performed.
  • Successful implementation of visual imagery is associated with distinct neural activation patterns.