Release from restraint generates a positive judgement bias in sheep

Assessment of positive emotions in animals to improve their welfare

Alain Boissy, Gerhard Manteuffel, Margit Bak Jensen et al. · Physiology & Behavior · 2007 · 1.3K citations

Cognitive bias and affective state

Emma J. Harding, Elizabeth S. Paul, Michael Mendl · Nature · 2004 · 814 citations · Full text

Cognitive Biases, Cognitive Science, Behavioral Decision Making +8

Cognitive bias as an indicator of animal emotion and welfare: Emerging evidence and underlying mechanisms

Michael Mendl, Oliver H. P. Burman, Randall M. Parker et al. · Applied Animal Behaviour Science · 2009 · 734 citations

Cognitive Biases, Animal Behaviour, Cognitive Science +14

A concept of welfare based on reward evaluating mechanisms in the brain: anticipatory behaviour as an indicator for the state of reward systems

Berry M. Spruijt, Ruud van den Bos, Femke Buisman‐Pijlman · Applied Animal Behaviour Science · 2001 · 424 citations · Full text

Neuropsychology, Behavioral Decision Making, Affective Neuroscience +16

Emotions in farm animals:

Lara Désiré, Alain Boissy, Isabelle Veissier · Behavioural Processes · 2002 · 301 citations

Behavioral Sciences, Animal Science, Human-animal Interaction +4