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Disrupting Reconsolidation of Fear Memory in Humans by a Noradrenergic β-Blocker
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Published on: December 18, 2014

Eliminating the memory blocking effect.

P Andrew Leynes1, Olga Rass, Joshua D Landau

  • 1Department of Psychology, The College of New Jersey, Ewing, NJ08628-0718, USA. leynes@tcnj.edu

Memory (Hove, England)
|September 30, 2008
PubMed
Summary
This summary is machine-generated.

The memory blocking effect (MBE) occurs when similar words interfere with memory recall. This study shows executive control manages this interference, with blocking disappearing after a long delay or with semantic cues.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Memory Research

Background:

  • The memory blocking effect (MBE) is a phenomenon where exposure to orthographically similar words hinders fragment completion.
  • Understanding the cognitive mechanisms underlying MBE is crucial for memory research.

Purpose of the Study:

  • To investigate the conditions under which the memory blocking effect (MBE) occurs and dissipates.
  • To explore the role of executive control in managing interference during memory retrieval.

Main Methods:

  • Six experiments were conducted using word fragment completion tasks.
  • Manipulations included varying delay intervals, introducing semantic information, directed-forgetting instructions, and activating solution/blocking words at study.

Main Results:

  • The memory blocking effect (MBE) was absent after a 72-hour delay, though repetition priming persisted.
  • Presenting unrelated semantic information or activating both solution and blocking words at study eliminated blocking.
  • The MBE remained even with directed-forgetting instructions.

Conclusions:

  • Orthographically similar primes automatically trigger blocking word retrieval, necessitating executive control to manage interference.
  • A framework for executive control governing memory retrieval in the MBE paradigm is proposed.