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Impact of canine epilepsy on judgement and attention biases

Hobbs, S L; Law, T H; Volk, H A; Younis, C; Casey, R A; Packer, R M A


S L Hobbs

T H Law

H A Volk

C Younis

R A Casey

R M A Packer


Idiopathic epilepsy (IE) is the most common chronic neurological condition in dogs, characterised by recurrent seizure activity and associated with negative behavioural and cognitive changes. We hypothesised that IE would negatively impact putative affective state, with dogs with IE exhibiting a more pessimistic judgement bias and more negative attention bias than controls. Dogs were tested in a previously-validated spatial judgement bias task, and a novel auditory attention bias task testing attention to sounds with different valence or salience (neutral, novel pre-habituated, threatening). Sixty-eight dogs (IE = 33, Control = 35) were tested, of which n = 37 acquired the spatial discrimination and responses to judgement bias probes were tested (IE = 19, Control = 18), and n = 36 were tested for responses to sounds (IE = 20, Control = 16). Study groups did not significantly differ by age, sex, breed or neuter-status (p > 0.05). Main effects of study group were not significant in judgement bias (F1,102 = 0.20, p = 0.658) or attention bias tasks (F3,102 = 1.64, p = 0.184). In contrast with our hypotheses, there was no evidence that IE altered cognitive biases in this study population; however, dogs with IE were significantly more likely to be unable to learn the spatial discrimination task (p = 0.019), which may reflect IE-related cognitive deficits. Developing methods to test affective state without excluding cognitively impaired individuals is a future challenge for animal welfare science.


Hobbs, S. L., Law, T. H., Volk, H. A., Younis, C., Casey, R. A., & Packer, R. M. A. (2020). Impact of canine epilepsy on judgement and attention biases. Scientific Reports, 10(1), 17719

Journal Article Type Article
Acceptance Date Sep 10, 2020
Publication Date Oct 20, 2020
Deposit Date Oct 29, 2020
Publicly Available Date Oct 29, 2020
Journal Scientific Reports
Publisher Nature Research
Peer Reviewed Peer Reviewed
Volume 10
Issue 1
Pages 17719
Keywords Article, /631/601/18, /692/617/375, article
Public URL


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