Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Aniracetam improves radial maze performance in rats.

J R Martin1, R Cumin, W Aschwanden

  • 1Pharma Division, Preclinical Research, F. Hoffman-La Roche Ltd, Basel, Switzerland.

Neuroreport
|January 1, 1992
PubMed
Summary

This study examines how the drug aniracetam affects memory in rats. Researchers tested the animals using a complex maze task that required them to remember specific locations. The findings show that giving the rats this substance improves their ability to navigate and recall information. These results suggest that the compound may help with cognitive functions related to spatial awareness. The study provides evidence for the potential benefits of this derivative in animal models. Overall, the data support the idea that such substances could enhance memory performance.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Prostate-specific antigen bounce in patients treated before 60 years old by iodine 125 brachytherapy for prostate cancer is frequent and not a prognostic factor.

Brachytherapy·2018
Same author

[Evaluation of the French practices in brachytherapy using surveys].

Progres en urologie : journal de l'Association francaise d'urologie et de la Societe francaise d'urologie·2017
Same author

Purification and Characterization of an Adipamidase from a Mutant Strain of Brevibacterium sp. Involved in Dinitrile Degradation.

Bioscience, biotechnology, and biochemistry·2016
Same author

Some critical determinants of the behaviour of rats in the elevated plus-maze.

Behavioural processes·2014
Same author

Low-frequency stimulation of the hippocampus following fear extinction impairs both restoration of rapid eye movement sleep and retrieval of extinction memory.

Neuroscience·2010
Same author

Novel CaF(2) nanocomposite with high strength and fluoride ion release.

Journal of dental research·2010

Area of Science:

  • Neuropharmacology and aniracetam cognitive research
  • Behavioral neuroscience and spatial memory assessment

Background:

No prior work had resolved whether specific pyrrolidinone derivatives could reliably enhance spatial memory performance in rodent models. That uncertainty drove researchers to investigate how these compounds influence cognitive processing during complex navigation tasks. It was already known that certain pharmacological agents might modulate brain activity related to learning and recall. However, the exact impact of this particular substance on delayed-response behavior remained unclear. This gap motivated a detailed examination of how varying doses influence memory retention over time. Prior research has shown that radial maze configurations provide a robust platform for testing hippocampal-dependent memory. Yet, the specific efficacy of this drug in multi-trial spatial paradigms required further validation. Scientists sought to bridge this divide by testing the substance in a controlled laboratory setting.

Purpose Of The Study:

The aim of this investigation was to determine the memory-enhancing effects of the pyrrolidinone derivative aniracetam in rats. Researchers sought to address the uncertainty regarding whether this compound improves performance in complex spatial tasks. The study focused on a delayed-response paradigm within an 8-arm radial maze environment. This specific problem required evaluating how the drug influences the ability of subjects to recall information over a three-hour interval. The team hypothesized that the substance would facilitate better navigation through changing maze configurations. By testing multiple dosage levels, the authors intended to clarify the relationship between drug intake and cognitive output. This motivation drove the systematic evaluation of behavioral accuracy in the laboratory setting. The study provides a controlled assessment of the potential benefits of this agent for memory-related functions.

Keywords:
cognitive enhancementpyrrolidinone derivativerodent behaviordelayed-response task

Frequently Asked Questions

The researchers propose that the drug improves spatial memory by enhancing performance in a delayed-response task. Rats receiving the compound showed better accuracy in navigating the maze compared to those that did not receive the treatment.

The investigation utilized an 8-arm radial maze to assess spatial memory. This specific apparatus allows for the systematic variation of baited arm configurations, which tests the ability of the subjects to recall recent information.

A 3-hour delay between the first and second trial was necessary to evaluate memory retention. This temporal gap ensures that the subjects must rely on their internal memory of the initial arm configuration rather than immediate sensory cues.

The researchers administered the drug orally at four distinct dose levels: 100, 200, 400, and 800 mg kg-1. These varying quantities allowed the team to determine if the cognitive benefits followed a dose-response relationship.

Related Experiment Videos

Main Methods:

Review approach involved training rats in a delayed-response task using an 8-arm radial maze. The team administered the compound orally at four different concentrations to evaluate behavioral changes. Each subject received the substance sixteen hours and one hour before the initial trial. The experimental design required the rats to learn a specific configuration of four baited arms. During the second trial, which occurred three hours later, the researchers opened all eight arms. Only the four arms not previously baited contained food rewards for the subjects. The team varied the pattern of baited locations daily to prevent reliance on fixed spatial habits. This rigorous approach ensured that the observed improvements reflected genuine memory retention rather than simple habit formation.

Main Results:

Key findings from the literature indicate that the drug significantly improves performance in the radial maze task. The highest doses produced the most substantial enhancement in the ability of the rats to recall spatial information. Subjects treated with the compound showed improved accuracy during the second trial compared to their initial performance. The study utilized four distinct dosage levels, ranging from 100 to 800 mg kg-1, to assess efficacy. Data show that the memory-enhancing effect remains consistent across these tested concentrations. The results confirm that the substance aids in spatial memory tasks within this specific animal model. These observations provide clear evidence of cognitive improvement following the administration of the pyrrolidinone derivative. The findings demonstrate that the drug effectively modulates memory processes during the delayed-response paradigm.

Conclusions:

The researchers propose that this pyrrolidinone derivative significantly boosts spatial memory capabilities in rats. Synthesis and implications suggest that the observed performance gains correlate positively with the administered dosage levels. These findings extend the known cognitive benefits of the compound to complex spatial navigation challenges. The authors indicate that the drug effectively aids memory retention during delayed-response trials. This work supports the broader hypothesis that such derivatives possess meaningful neuropharmacological properties. The evidence points toward a dose-dependent improvement in task accuracy within the radial maze environment. Future discussions might focus on how these behavioral changes reflect underlying neural mechanisms of memory. The study concludes that this substance serves as a viable candidate for further investigation into cognitive enhancement.

The study measured performance by tracking the ability of rats to locate baited arms in a changing configuration. This phenomenon highlights the capacity of the subjects to adapt to new spatial requirements after pharmacological intervention.

The authors suggest that these results demonstrate the potential for this compound to act as a cognition enhancer. They propose that such effects could be relevant for understanding memory modulation in similar biological systems.