Equipment Model

Description

The Elevated Plus Maze (EPM) for mice is a behavioral apparatus designed to assess anxiety-like behavior in rodents. The maze consists of two open arms and two closed arms arranged in a plus (+) configuration and elevated above the floor. This setup leverages the natural aversion of mice to open and elevated spaces, providing insights into their anxiety levels. The apparatus is equipped with a Logitech C270HD webcam to monitor and record the animal's movements for subsequent analysis.

Lab

MW Room - 3

Institute

Central Animal Research Facility

Location

Central Animal Research Facility, Opposite MSLS, Eshwar Nagar, Manipal, Udupi, Karnataka 576104, India

• Applications

  • Neuroscience Research: Evaluating the effects of genetic modifications or pharmacological agents on anxiety-related behaviors.

  • Psychopharmacology: Screening potential anxiolytic or anxiogenic compounds by observing changes in arm exploration patterns.

  • Behavioral Genetics: Studying strain differences in anxiety responses and exploratory behaviors.

  • Toxicology Studies: Assessing neurobehavioral toxicity by monitoring changes in anxiety-like behaviors.

  • Developmental Biology: Investigating the impact of developmental interventions or exposures on adult anxiety levels.

• Key Features

  • Standardized Design: Comprises two open arms and two closed arms (typically 30 cm in length and 5 cm in width), elevated 50 cm above the floor.

  • Video Monitoring: Equipped with a Logitech C270HD webcam providing 720p resolution for accurate tracking of rodent movements.

  • Quantitative Metrics: Measures parameters such as time spent in open vs. closed arms, number of entries into each arm, and total distance traveled.

  • Software Integration: Compatible with behavioral analysis software for automated tracking and data analysis.

  • Non-Invasive Assessment: Allows for the evaluation of anxiety-like behaviors without the need for invasive procedures.

• Limitations

  • Environmental Sensitivity: Results can be influenced by external factors such as lighting, noise, and room temperature, necessitating controlled testing conditions.

  • Habituation Effects: Repeated testing may lead to habituation, affecting the reliability of longitudinal studies.

  • Interpretation Challenges: Differentiating between anxiety and general locomotor activity can be complex, requiring complementary tests for comprehensive analysis.

  • Equipment Calibration: Accurate tracking depends on proper calibration and positioning of the camera and software settings.

  • Species and Strain Variability: Behavioral responses can vary significantly between different mouse strains, impacting the generalizability of results.