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  1. Article

    Open Access

    Visual discrimination and resolution in freshwater stingrays (Potamotrygon motoro)

    Potamotrygon motoro has been shown to use vision to orient in a laboratory setting and has been successfully trained in cognitive behavioral studies using visual stimuli. This study explores P. motoro’s visual di...

    Martha M. M. Daniel, Laura Alvermann, Imke Böök… in Journal of Comparative Physiology A (2021)

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    Article

    Immediate early gene expression related to learning and retention of a visual discrimination task in bamboo sharks (Chiloscyllium griseum)

    Using the expression of the immediate early gene (IEG) egr-1 as a neuronal activity marker, brain regions potentially involved in learning and long-term memory functions in the grey bamboo shark were assessed wit...

    Theodora Fuss, Vera Schluessel in Brain Structure and Function (2018)

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    Article

    The shark Chiloscyllium griseum can orient using turn responses before and after partial telencephalon ablation

    This study assessed spatial memory and orientation strategies in Chiloscyllium griseum. In the presence of visual landmarks, six sharks were trained in a fixed turn response. Group 1 started from two possible com...

    Theodora Fuss, Horst Bleckmann, Vera Schluessel in Journal of Comparative Physiology A (2014)

  4. No Access

    Article

    Place learning prior to and after telencephalon ablation in bamboo and coral cat sharks (Chiloscyllium griseum and Atelomycterus marmoratus)

    This study assessed complex spatial learning and memory in two species of shark, the grey bamboo shark (Chiloscyllium griseum) and the coral cat shark (Atelomycterus marmoratus). It was hypothesized that sharks c...

    Theodora Fuss, Horst Bleckmann, Vera Schluessel in Journal of Comparative Physiology A (2014)

  5. No Access

    Article

    Avoidance conditioning in bamboo sharks (Chiloscyllium griseum and C. punctatum): behavioral and neuroanatomical aspects

    Animals face different threats; to survive, they have to anticipate how to react or how to avoid these. It has already been shown in teleosts that selected regions in the telencephalon, i.e., the medial palliu...

    Susanne Schwarze, Horst Bleckmann, Vera Schluessel in Journal of Comparative Physiology A (2013)

  6. No Access

    Article

    Spatial memory and orientation strategies in the elasmobranch Potamotrygon motoro

    We investigated whether juvenile freshwater stingrays (Potamotrygon motoro) can solve spatial tasks by constructing a cognitive map of their environment. Two experimental conditions were run: allocentric and ego-...

    Vera Schluessel, Horst Bleckmann in Journal of Comparative Physiology A (2005)