BVision Dedicated for the Morris water maze test

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 BV

BVision Tracking System Analyzing Tools Data Configuration parameters Analysis Acquisition Visualization Management Automatic creation of the video archive BV

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 BV

Data structure and storage Flexible database management system. Tracks and Experiments Stored in the Database BV

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

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

Tracking process BV

Parameters • escape latency, • accounting for time of active swimming only (with speed lower than selected threshold), • trajectory length, • speed, • index of “pasive” swimming” (to characterize decrease of animals’ mobility), • % 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. • time in zone of interest (ZOI), BV

Analysis of a Single Track BV

Zones Definitions for Analysis BV

Main Analysis Window BV

Results Visualization B