journal article·2021-07-20Open access

Detection and Model of Thermal Traces Left after Aggressive Behavior of Laboratory Rodents

Magdalena Mazur-Milecka, Jacek Ruminski, Wojciech Glac, Natalia Glowacka

Applied Sciences· Volume 11· Issue 14

Abstract

Automation of complex social behavior analysis of experimental animals would allow for faster, more accurate and reliable research results in many biological, pharmacological, and medical fields. However, there are behaviors that are not only difficult to detect for the computer, but also for the human observer. Here, we present an analysis of the method for identifying aggressive behavior in thermal images by detecting traces of saliva left on the animals’ fur after a bite, nape attack, or grooming. We have checked the detection capabilities using simulations of social test conditions inspired by real observations and measurements. Detection of simulated traces different in size and temperature on single original frame revealed the dependence of the parameters of commonly used corner detectors (R score, ranking) on the parameters of the traces. We have also simulated temperature of saliva changes in time and proved that the detection time does not affect the correctness of the approximation of the observed process. Furthermore, tracking the dynamics of temperature changes of these traces allows to conclude about the exact moment of the aggressive action. In conclusion, the proposed algorithm together with thermal imaging provides additional data necessary to automate the analysis of social behavior in rodents.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Advanced Chemical Sensor Technologies · Neural dynamics and brain function · Olfactory and Sensory Function Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Biomedical Engineering, Faculty of Electronics, Telecommunications and Informatics, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland

Department of Animal and Human Physiology, Faculty of Biology, University of Gdansk, Bazynskiego 8, 80-309 Gdansk, Poland

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