behavior recognition technology of the next generation
HomeCageScan
HomeCageScan is the flagship product in the PhenoScan Suite series of software for automatically studying unconstrained rodent behaviors in a home cage for either short or extended periods of time (24/7). Our premise for developing HomeCageScan is that behavioral phenotypes are often best detected when the rodent is unconstrained by experimenter manipulation. Thus, automated high throughput analysis of behaviors in the home cage would be a powerful tool for phenotypic screening of animals for gene manipulations or drug administration.
Automation of analysis would allow quantification of all behaviors and their circadian rhythms over extended periods of time. Thus, the automated analysis can be used to build a profile of the behaviors, their amount, duration, and circadian rhythm for each commonly used rodent strain. This profile can then be compared to the rodent in question and differences from the profile expressed quantitatively. Because gene defects or drug administration that cause developmental disorders in humans usually result in changes in the circadian rhythm of behavior, analysis of organized patterns of behavior across the day should be effective in detecting phenotypes in transgenic and targeted mutant rodents.
The automated system is also able to detect abnormal behaviors that do not normally occur and present the investigator with video clips of such behavior. Abnormalities may also result from a deviation from the regular circadian rhythm of normal behaviors. That is, detection of novel abnormal behaviors is achieved by detecting segments of behavior that do not fit the standard profile for a particular strain of rodent whereas detection of abnormal amounts of a normal behavior is detected by comparing the statistical properties of the standard profile.
HomeCageScan is a perfect fit for longitudinal studies where several animals are studied and tested over long periods. For example, HomeCageScan can be used in disease progression studies by analyzing several animals one day every week for several weeks. The behavior profile for each week can then be compared with other weeks’ data to see what behaviors are altered over the course of the study.
The techniques for automation of the categorization and quantification of all home‐cage behaviors throughout the daily cycle will be a powerful tool for detecting phenotypic effects of gene manipulations or drug administration in rodents. These techniques have been applied to achieve high throughput drug screening as well. System architecture for high throughput screening has been designed that involves analysis of 4 cages on a system. Moreover, with multiple cameras hooked up to HomeCageScan systems, the number of cages analyzed simultaneously can be increased further. Up to 4 animals can be analyzed simultaneously with the High‐Throughput Option. Realtime Option provides the ability to perform analysis in realtime while the video is compressed and saved to the hard‐drive of the computer.
Many advanced features are incorporated, including supporting full color analysis, automatic adapting of changing environment, automated handling of day/night switches, variable speed playback of specific video segment for specific detected behavior, etc.
Complete Turn‐key systems including all necessary Hardware and Software are available. Custom design of your environment to facilitate analysis, including lighting condition setup, IR/red light setup, cage enclosures, video integration, and video‐feed to computer is also available.
This product is protected by US Patents # 6,678,413; 7,068,842; 7,209,588.
Kyzar, M Pham, A Roth, J Cachat, J Green, S Gaikwad, and AV Kalueff, (2012) Alterations in grooming activity and syntax in heterozygous SERT and BDNF knockout mice: The utility of behavior-recognition tools to characterize mutant mouse phenotypes, Brain Res Bull, Dec 2012; 89(5-6): 168-76