Some very convincing research suggests that dogs think in sensory impressions; visual, sound and odor images, etc. This is not to say that they sit around on quiet days experiencing videos inside their brains. However, they likely share our ability to form and experience in their minds certain images, odors and sounds. The scientific basis for this idea came from Russia and was published in the US in 1973. A scientist name VS.. Rusinov1 was studying the electrophysiology of the brain and had several dogs wired with brain wave equipment and radio transmitters. When the dogs were brought into the lab from the kennels for experimental conditioning tests, the electroencephalograph machine was turned on to record their brain wave patterns. This was done at the same time each day, five days a week. One weekend, purely by accident, Rusinov brought a group of visitors into the lab and turned on the EEG machine. Lo, the dog that was normally schedule for tests during the week at that time was sending wave forms nearly identical to his regular working patterns! When the testing time passed, the dogs' brain waves soon returned to their normal 'at rest' forms. I never found any mention by Rusinov as to whether the dogs out in the kennel were actually performing their conditioned laboratory behaviorisms. Chances are they were not, but one thing is almost sure; compared to human experience in similar types of studies, the dogs were apparently experiencing them mentally2,3.
The late Polish scientist, Jerzi Konorski,3 taught dogs to salivate and expect food in their trays when a light flickered. This was done regularly every few minutes. However, after a few trials, the dogs started salivating and looking at the trays as if the food were actually there, even though the light had not flickered. Konorski ventured that the dogs were hallucinating about both the stimulus (the light) and the reward for salivating (the food). One thing is sure: Something was going on in the dogs' minds that made them behave as if they were happening.
The late Polish scientist, Jerzi Konorski,3 taught dogs to salivate and expect food in their trays when a light flickered. This was done regularly every few minutes. However, after a few trials, the dogs started salivating and looking at the trays as if the food were actually there, even though the light had not flickered. Konorski ventured that the dogs were hallucinating about both the stimulus (the light) and the reward for salivating (the food). One thing is sure: Something was going on in the dogs' minds that made them behave as if they were happening.