The interaction of edge-fixation and negative phototaxis in the orientation of walking gypsy moths,Lymantria dispar |
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Authors: | R. Preiss E. Kramer |
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Affiliation: | (1) Max-Planck-Institut für Verhaltensphysiologie, D-8131 Seewiesen, Federal Republic of Germany |
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Abstract: | Summary The visual orientation towards single black stripes and more complex patterns, comprising smooth gradients of brightness was studied in walking gypsy moths. Depending on the width of a black stripe, up to three walking directions are preferred within one stimulus situation: towards the centre of the stripe and towards a region within the stripe closer to each edge. The observed responses are explained by a compromise between edge-fixation and negative phototaxis. This hypothesis turned out to be also applicable to more complex patterns. |
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