Details

Autor(en) / Beteiligte

• Kis, Anna
• Hernádi, Anna
• Kanizsár, Orsolya
• Gácsi, Márta
• Topál, József

Titel

Oxytocin induces positive expectations about ambivalent stimuli (cognitive bias) in dogs

Ist Teil von

• Hormones and behavior, 2015-03, Vol.69, p.1-7

Ort / Verlag

United States: Elsevier Inc

Erscheinungsjahr

2015

Quelle

MEDLINE

Beschreibungen/Notizen

• Expectancy bias towards positive outcomes is a potential key to subjective well-being, and has been widely investigated in different species. Here we test whether oxytocin, suggested to play a role in human optimism and emotional processing, influences how dogs judge ambivalent situations (in a cognitive bias paradigm). Subjects first learned in a location discrimination task that a bowl either contained food (at the ‘positive’ location) or was empty (at the ‘negative’ location). Then, after receiving oxytocin or placebo nasal spray, they were presented with the bowl located halfway between the positive and negative positions in communicative or non-communicative contexts (N=4×16). A Positive Expectancy Score was calculated for each subject using the latency to approach this ambivalent location. Compared to placebo groups, subjects that received oxytocin pretreatment showed a positive expectation bias in both contexts, and this effect was more pronounced in the communicative context. Our study provides the first evidence for the impact of oxytocin on dogs' judgement bias and also shows that the social-communicative nature of the task situation modulates the effect of oxytocin. •After oxytocin administration dogs form more positive expectations about ambivalent stimuli.•The effect of oxytocin is enhanced by the social-communicative context of the task.•Dogs parallel humans in that their oxytocin system is related to expectation bias.