Behavioral non-conditioning assay in insect magnetosensitivity research.

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Authors

VÁCHA Martin DRŠTKOVÁ Dana PŮŽOVÁ Tereza

Year of publication 2005
Type Article in Proceedings
Conference Biophysics of Magnetic Orientation in Animals.
MU Faculty or unit

Faculty of Science

Citation
Field Physiology
Keywords magnetoreception insects periplanetta
Description Our goal was to call into action as simple as possible non-conditionig test of magnetosensitivity on american coackroach (Periplanetta americana) species widely used by insect neurophysiologists. We scored the number of main body axis rotations > 15 (body turns) of cockroaches in uniform light placed individually into Petri dishes. We compared the spontaneous (control) turn activity with activity observed within a period of intermittent geomagnetic field rotations (period 2: 11.30-13.00). We found a significant grow of the turn activity compared to control (Mann-Whitney, P = 0.01, n = 62/66) for period 2 with overrun to following period 3. We suppose the simplicity of the test to be its main virtue. Provided the non-conditioning cockroach test of magnetosensitivity turns out to be replicable and stable it could play a role in investigation of still unknown neural principles of insect magnetoreception by means of standart neuro-techniques.
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