Researchers identify an interspecies correlation between hair cortisol concentrations in humans and dogs during summer and winter months. The cortisol levels were not affected by the amount of activity the dog had during these periods. The study reveals a seasonal effect in higher cortisol levels between humans and animals, and human personality traits significantly affected the dog's level of stress. Findings suggest that dogs often mirror the stress levels of their owners.
fMRI neuroimaging reveals the parietotemporal cortex of dogs responds to numeric concepts. The study provides evidence that numerosity is a shared evolutionary neural mechanism.
A new study reports dogs have the ability to understand human speech intonation and vocabulary by using similar brain areas to humans.
A new study reports genetic variations in sensitivity to oxytocin allows dogs to be more sociable and seek out contact with their owners.
Exposure to household pet dogs in the early years of life was associated with a significantly decreased risk of being diagnosed with schizophrenia later in life.
A new neuroimaging study reveals how dogs process words they have been taught to associate with objects. Findings suggest dogs have a rudimentary neural representation of meaning for words they have been taught.
According to researchers, the behavior of the owner may influence dogs during problem solving tasks.
The human ability to recognize the facial expressions of dogs is acquired through age and experience and is not an evolutionarily selected trait.