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The IPCS Collaborative Study on Neurobehavioral Screening Methods: III. Results of proficiency studies. Steering
V C Moser1, G C Becking, V Cuomo
1Neurotoxicology Division, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA.
Neurotoxicology
|January 1, 1997
Summary
This study assessed neurobehavioral screening methods, including the functional observational battery (FOB) and motor activity tests, across eight global labs. Despite some variability, all labs successfully met reliability criteria for these crucial toxicology tools.
Area of Science:
- Neurotoxicology
- Laboratory Science
- Pharmacology
Background:
- Standardized neurobehavioral screening methods are essential for reliable toxicology studies.
- Variability in laboratory results can hinder accurate assessment of chemical neurotoxicity.
Purpose of the Study:
- To evaluate the intra- and inter-laboratory reliability of a functional observational battery (FOB) and automated motor activity assessment.
- To validate training protocols for neurobehavioral screening methods using positive-control compounds.
Main Methods:
- Eight international laboratories participated in a collaborative study.
- Participants were trained on FOB and motor activity testing protocols.
- Positive-control compounds (p,p'-DDT, parathion, acrylamide, triadimefon, chlorpromazine) were used to assess laboratory performance.
Main Results:
- All laboratories successfully identified neurotoxic syndromes and detected dose-dependent changes in motor activity.
- Variability in the magnitude of effects was observed, attributed to factors like communication and protocol limitations.
- Despite variability, the study met predefined reliability criteria.
Conclusions:
- The functional observational battery (FOB) and automated motor activity tests demonstrated acceptable reliability across multiple laboratories.
- Standardized training and clear protocols are crucial for minimizing variability in neurobehavioral assessments.
- The study provides a foundation for the global application of these neurobehavioral screening methods in toxicology.