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Canine cognitive dysfunction (CCD) is a disease prevalent in dogs that exhibit symptoms of dementia or Alzheimer's disease shown in humans. [1] CCD creates pathological changes in the brain that slow the mental functioning of dogs resulting in loss of memory, motor function, and learned behaviors from training early in life.
A study titled "The odor of an unfamiliar stressed or relaxed person affects dogs' responses to a cognitive bias test" was published in Scientific Reports on July 22, 2024, and the results are ...
Stress can cause acute and chronic changes in certain brain areas which can cause long-term damage. [4] Over-secretion of stress hormones most frequently impairs long-term delayed recall memory, but can enhance short-term, immediate recall memory. This enhancement is particularly relative in emotional memory.
However, dogs' emotions can be studied indirectly through cognitive tests, called cognitive bias test, which measure a cognitive bias and allow to make inference about the mood of the animal. Researchers have found that dogs suffering from separation anxiety have a more negative cognitive bias, compared to dogs without separation anxiety. [52]
Nor do older dogs require as much physical activity as puppies. “If you have a young dog, you really have to walk them long and hard, they need a lot of exercise,” explains Kane. “And if you ...
Researchers say the skill could be useful when training service dogs and therapy dogs.
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Stress can have negative effects on gastrointestinal function causing ulcers, and it can also decrease sex drive, affect sleeping patterns and elevate blood pressure but it can also stimulate and motivate. When animals experience stress, they are generally more alert than when they are not stressed.