Dogs have a great tendency to distinguish between two humans even if they are familiar to them such as their owners using visual cues. This unique characteristic is found in humans suggesting that dogs have developed distinctive cognitive skills that are equivalent to human infants. Functional magnetic resonance imaging (fMRI) has been used in this study to measure the brains cortical activity and has been used in dogs to study auditory and visual processes. The fMRI gives us an insight into the activity of the cerebral cortex during the processing of faces in dogs.
