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Cognitive and behavioral assessment in experimental stroke research: will it prove useful?
A C DeVries1, R J Nelson, R J Traystman
1Department of Psychology, The Ohio State University, Columbus, OH 43210, USA. devries.14@osu.edu
Neuroscience and Biobehavioral Reviews
|July 11, 2001
Summary
Researchers reviewed methods for assessing stroke damage in animal models. They identified factors causing conflicting results in middle cerebral artery occlusion (MCAO) studies to improve future research.
Area of Science:
- Neuroscience
- Animal Models of Stroke
- Behavioral Neuroscience
Background:
- Stroke in humans causes sensorimotor and cognitive deficits.
- Animal models, particularly middle cerebral artery occlusion (MCAO), are used to study stroke-related functional impairments.
- Assessing behavioral and cognitive outcomes in MCAO models is crucial but often yields conflicting results.
Purpose of the Study:
- To describe common techniques for assessing functional outcomes after MCAO in rodents.
- To identify potential confounding factors that affect the interpretation of behavioral data in stroke research.
Main Methods:
- Review of existing literature on MCAO models and behavioral assessment techniques in rodents.
- Analysis of factors contributing to variability in reported behavioral deficits post-MCAO.
Main Results:
- Significant discrepancies exist in reported behavioral deficits following MCAO across studies.
- Factors such as MCAO method, occlusion duration, animal strain, testing protocols, and environment influence outcomes.
- Inadequate experimental and control groups are often employed, hindering clear interpretation.
Conclusions:
- Standardization of MCAO and behavioral testing methodologies is needed for reliable stroke research.
- Addressing confounding factors is essential for accurate correlation between stroke damage and functional deficits.
- This review provides a framework for improving the design and interpretation of MCAO behavioral studies.