Year:

  1. Michèle N. Schubiger, Florian L. Wüstholz, André Wunder & Judith M. Burkart (2015). High Emotional Reactivity Toward an Experimenter Affects Participation, but Not Performance, in Cognitive Tests with Common Marmosets. Animal Cognition 18 (3):701-712.
    When testing primates with cognitive tasks, it is usually not considered that subjects differ markedly in terms of emotional reactivity toward the experimenter, which potentially affects a subject’s cognitive performance. We addressed this issue in common marmosets (Callithrix jacchus), a monkey species in which males tend to show stronger emotional reactivity in testing situations, whereas females have been reported to outperform males in cognitive tasks. In a two-phase experiment, we first quantified the emotional reactivity of 14 subjects toward four different (...)
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  2. Richard Moore (2015). Meaning and Ostension in Great Ape Gestural Communication. Animal Cognition:xx-yy.
    It is sometimes argued that while human gestures are produced ostensively and intentionally, great ape gestures are produced only intentionally. If true, this would make the psychological mechanisms underlying the different species’ communication fundamentally different, and ascriptions of meaning to chimpanzee gestures would be inappropriate. While the existence of different underlying mechanisms cannot be ruled out, in fact claims about difference are driven less by empirical data than by contested assumptions about the nature of ostensive communication. On some accounts, there (...)
     
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