Morgan Ferrans
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View article: People permanence: pet dogs represent their owners when they disappear
People permanence: pet dogs represent their owners when they disappear Open
We tested pet dogs (Canis familiaris; n=75) for their ability to mentally represent a person who is no longer perceivable. A subject watched and then searched for a person after they hid themselves behind one of two occluders. In the criti…
View article: Salivary cortisol is an unreliable correlate of serum cortisol in adult pet dogs and assistance dog puppies
Salivary cortisol is an unreliable correlate of serum cortisol in adult pet dogs and assistance dog puppies Open
Cortisol is widely used in mammals as a measure of HPA axis response. To estimate response to an acute stressor, minimize pain and ease sample collection, salivary cortisol has become preferred over serum cortisol across a variety of speci…
View article: Longitudinal evidence for the emergence of multiple intelligences in assistance dog puppies
Longitudinal evidence for the emergence of multiple intelligences in assistance dog puppies Open
Cognitive test batteries suggest that adult dogs have different types of cognitive abilities that vary independently. In the current study, we tested puppies repeatedly over a crucial period of development to explore the timing and rate at…