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A Simple Computer-aided Device for Monitoring Activity of Small Mammals and Insects

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dc.contributor.author Sharma, Vijay Kumar
dc.date.accessioned 2011-03-21T11:40:40Z
dc.date.available 2011-03-21T11:40:40Z
dc.date.issued 2003
dc.identifier 0929-1016 en_US
dc.identifier.citation Biological Rhythm Research 34(1), 3-12 (2003) en_US
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/71
dc.description Restricted access. en_US
dc.description.abstract A simple computer-aided device was developed to record the activity of small animals. The device comprises of aktographs, opto-couplers, opto-amplifier units, a data acquisition unit ('Activity Monitor') and a Pentium processor based personal computer (PC) attached to an addition parallel printer port. The aktographs are devices which facilitate organisms to exhibit its natural activity. The aktographs for fruit flies, ants and mice are tubes with food supply and moisture, petri dishes adequately ventilated with arrangements for constant supply of water, sugar or honey solution, and cages attached with running wheels, respectively. Two mutually perpendicular beams of infra-red (IR) emission form a cross-hair detection system across the aktographs and an interruption to these beams creates an electrical signal ('transition') which is amplified using the opto-amplifier unit and sent to the activity monitor which consists of shift registers. The number of moments the IR beams are interrupted is taken as a measure of the amount of activity, based on the assumption that a more active animal would interrupt the IR beams more often compared to a less active one. Programs were written in C++, which facilitated data acquisition and graphical representation in terms of a daily plot of amount of activity as a function of time of the day, and actograms of daily activity were arranged chronologically one below the other. The activity patterns of individual animals (fruit fly, ants, and mice) were monitored using this device. Based on the performance and features of this device, we feel that with some improvement in the software this can substitute some of the existing activity recording devices, which are costly and not flexible. en_US
dc.description.uri http://dx.doi.org/10.1076/brhm.34.1.3.14078 en_US
dc.language.iso en en_US
dc.publisher Swets & Zeitlinger en_US
dc.rights © 2003 Swets & Zeitlinger en_US
dc.subject Computer-aided device en_US
dc.subject Rhythms en_US
dc.subject Ants en_US
dc.subject Fruit flies en_US
dc.subject Mice en_US
dc.subject Locomotor-Activity Rhythm en_US
dc.subject Phase Response Curves en_US
dc.subject Drosophila-Melanogaster en_US
dc.subject Mus-Booduga en_US
dc.title A Simple Computer-aided Device for Monitoring Activity of Small Mammals and Insects en_US
dc.type Article en_US


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