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B.V.BVision Morris Water Maze Test System

Dedicated system for the Morris water maze test with video camera tracking, animal and platform study, data analysis tools, and automatic database management.

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B.V.BVision Morris Water Maze Test System

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  1. B V BVision Dedicated for the Morris water maze test Video camera Animal (rat) Water pool Hidden Platform study of effect of different compounds on spatial orientation and memory of experimental animals

  2. B V BVision Tracking System Analyzing Tools Data Configuration parameters Analysis Acquisition Visualization Automatic creation of the video archive Management

  3. B V Live Video • Program correction of the video path in the framegrabber. • Minimizing load of the processor. • Fast signal proceeding (up to 25 frames/s • Displaying zones boundaries

  4. B V Data structure and storage Flexible database management system. Tracks and Experiments Stored in the Database

  5. B V Automatical detection of borders of the pool and other analyzed zones (for example, platform) Arena and zones definition Restoration of the Platform Position Result of Zones Detection

  6. B V Object Detection Algorithm 1 Program correction of the 2 video path Corrected video Differentiation of Input video Framegrabber signal all the found signal objects by size Differentiation of the Формальный нейрон residual objects according to physical reasons Detected animal

  7. B V Tracking process

  8. B V Parameters • escape latency, • accounting for time of active swimming only (with speed lower than selected threshold), • trajectory length, • speed, • index of “pasive” swimming” (to characte-rize decrease of animals’ mobility), • time in zone of interest (ZOI), • % of tracks failed to find the platform, • straightness index (deviation from the direct path to platform), • cumulative and reverse cumulative distances to platform, • angle characteristics of movement relative platform, • Whishaw “alley” index, etc.

  9. B V Analysis of a Single Track

  10. B V Zones Definitions for Analysis

  11. B V Main Analysis Window

  12. B V Results Visualization

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