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Related Experiment Video

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The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents
09:01

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Published on: July 8, 2015

A sham drug improves a demanding prospective memory task.

Sophie Parker1, Maryanne Garry, Gilles O Einstein

  • 1School of Psychology, Victoria University of Wellington, Wellington, New Zealand.

Memory (Hove, England)
|September 17, 2011
PubMed
Summary

A sham cognitive enhancing drug improved prospective memory performance. Participants receiving the placebo drug showed better future action recall and increased effortful monitoring during tasks.

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Area of Science:

  • Cognitive psychology
  • Neuroscience
  • Human memory research

Background:

  • Prospective memory, the ability to remember future actions, is crucial for daily functioning.
  • Cognitive enhancers are often investigated for their potential to improve memory.
  • The impact of placebo effects on cognitive performance, particularly prospective memory, warrants further investigation.

Purpose of the Study:

  • To investigate the effect of a sham cognitive enhancing drug on prospective memory performance.
  • To determine if a placebo intervention can influence effortful monitoring in a high-demand memory task.

Main Methods:

  • A prospective memory task was administered to participants.
  • Participants were divided into two groups: one receiving a sham drug, the other not.
  • Performance on the prospective memory task and time taken for an ongoing task were measured.

Main Results:

  • Participants who received the sham drug demonstrated enhanced performance on the prospective memory task.
  • The sham drug group exhibited longer completion times for their ongoing task, indicating increased monitoring.
  • These findings align with research on suggestion-induced cognitive effort.

Conclusions:

  • A placebo intervention, presented as a cognitive enhancer, can significantly improve prospective memory.
  • The observed improvements are likely mediated by increased cognitive effort and monitoring.
  • This study highlights the potent influence of suggestion on memory and cognitive performance.