On the use of microwave radar devices in chronobiology studies: An application withPeriplaneta americana

Pasquali, Vittorio; Renzi, Paolo

doi:10.3758/bf03192723

Cited by 12 publications

(12 citation statements)

References 20 publications

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“…Bregazzi and Naylor 1972;Ercolini 1958;Geppetti and Tongiorgi 1967;Ugolini 2003), for each experimental condition we also compared the activity recorded during the light and dark periods using the Wilcoxon signed ranks test (Siegel and Castellan 1989). To assess the presence of a circadian activity period, we analyzed the data with the v 2 periodogram of Sokolove and Bushell (1978) as implemented by Refinetti (2004), testing the periods between 20 and 26 h (Pasquali and Renzi 2005). We used the G test to evaluate the preference of sandhoppers in substrate selection tests.…”

Section: Discussionmentioning

confidence: 99%

“…Pasquali and Renzi 2005). It consisted of a microwave radar (Guardall MX950, 24 GHz, 20 m), based on the Doppler effect, placed on the plastic tanks (16 cm from the sand surface).…”

Section: Locomotor Activitymentioning

confidence: 99%

“…Preliminary tests showed that a distance of 16 cm was most appropriate to record all movements of the target organism on the entire sand surface of the experimental tanks. The radar device was connected to a computer provided with appropriate software (Pasquali and Renzi 2005). This system allowed the automatic acquisition of data, which were saved to the hard disk for further analysis.…”

Section: Locomotor Activitymentioning

confidence: 99%

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Behavioural responses of the supralittoral amphipod Talitrus saltator (Montagu) to trace metals contamination

et al. 2011

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We investigated behavioural responses (locomotor activity and substrate selection) of the amphipod Talitrus saltator after laboratory exposure to different concentrations of Hg, Cu and Cd. Locomotor activity, measured with a microwave radar device, was assessed in animals exposed to contaminated sand and in sandhoppers previously kept for 48 h in contaminated seawater and tested in clean sand. The contents of Hg, Cu and Cd in T. saltator tissues were measured at the end of pre-exposure to contaminated seawater and after 7 days of exposure to contaminated sand. Substrate selection tests were carried out in a binary choice arena. Tests in contaminated sand showed that sandhopper locomotor activity varied in a dose-dependent manner in the presence of Cu and Hg (at lower Hg concentration they were more active during daytime) but did not show significant changes in Cd-exposed animals except for disappearance of the typical circadian activity pattern. Pre-exposure to trace metals in seawater induced a significant decrease of movements for all metals, although the effects varied according to the toxicity of the metal. Trace metals analyses showed that tissue concentrations of Hg, Cu and Cd were related to their concentrations in the test medium. Substrate selection tests showed avoidance of contaminated sand only when sandhoppers were tested in the presence of both concentrations of Hg and at the higher concentration of Cu. In conclusion, locomotor activity and avoidance behaviour of T. saltator could be used as behavioural biomarkers of trace metals exposure.

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Section: Discussionmentioning

confidence: 99%

“…Pasquali and Renzi 2005). It consisted of a microwave radar (Guardall MX950, 24 GHz, 20 m), based on the Doppler effect, placed on the plastic tanks (16 cm from the sand surface).…”

Section: Locomotor Activitymentioning

confidence: 99%

Section: Locomotor Activitymentioning

confidence: 99%

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Behavioural responses of the supralittoral amphipod Talitrus saltator (Montagu) to trace metals contamination

et al. 2011

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“…Several automated methods are in use, including infrared photobeam detectors (Beninger et al, 1985;Clarke et al, 1985;Robles, 1990;Teicher et al, 1996), vibration detection ( Van de Weerd et al, 2001), radio telemetry (Deveney et al, 1998), radar (Pasquali and Renzi, 2005) and computerized video analysis (Noldus et al, 2001;Vorhees et al, 1992). While substantially different in their approaches to solving tracking issues, these methods share the aim of reducing time spent manually scoring animal behavior, while increasing consistency of data due to elimination of observer fatigue and drift.…”

Section: Introductionmentioning

confidence: 97%

A method for tracking rats in a complex and completely dark environment using computerized video analysis

Dielenberg

Halasz

Day

2006

Journal of Neuroscience Methods

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“…The automated observation systems, which always work in the same way therefore behaviors are recorded more reliably, provide to researchers many behavioural information about animals. In literature, various types of the techniques can be found, including infrared photobeam detectors [10-11-12-13], vibration detection [14], radio telemetry [15], radar [16] and computerized video analysis [17], [18]. However, video based tracking systems using video cameras are currently the most common approach to achieve the task [19].…”

Section: Introductionmentioning

confidence: 99%

Monitoring of Anxiety-Like Behaviors on Rats with Video Tracking Technology

Kardeşler¹,

Çetin²,

Beyhan³

2016

International Journal of Applied Mathematics, Electronics and Computers

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Artificial sweeteners like MSG (Mono Sodium Glutamate) model has been used anxiety-like behaviors on rats. The tracking of rat's movements has broad applicability to questions in anxiety-like behaviors with different doses MSG injections (50 mg/kg/day, 100 mg/kg/day and 200 mg/kg/day) to rats. In this paper, in order to measure three types locomotor activity (line crossing, rearing, grooming), a video tracking software is used. The advantage of this type of tracking software is that it provides to give locomotor activity of rats in real-time. The experimental results obtained in this study have shown that learning and memorial functions negatively affected in the brains of the rats an anxiety-like model. In addition, the visual tracking results demonstrate that video tracking system provides an accurate monitoring of rat's behavior.

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On the use of microwave radar devices in chronobiology studies: An application withPeriplaneta americana

Cited by 12 publications

References 20 publications

Behavioural responses of the supralittoral amphipod Talitrus saltator (Montagu) to trace metals contamination

Behavioural responses of the supralittoral amphipod Talitrus saltator (Montagu) to trace metals contamination

A method for tracking rats in a complex and completely dark environment using computerized video analysis

Monitoring of Anxiety-Like Behaviors on Rats with Video Tracking Technology

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