Just like humans, dogs have the
remarkable ability to remember and recall events from the past even when the
canines do not expect to be rewarded. The results of this study can be
considered as a further step to break down artificially erected barriers between
non-human animals and humans. Dogs are among the few species that people
consider ‘clever,’ and yet researchers are still surprised whenever a study reveals
that dogs and their owners may share some mental abilities despite their
distant evolutionary relationship. In the new study, the researchers took
advantage of a trick called ‘Do as I Do’. Dogs trained to ‘Do as I Do’ can
watch a person perform an action and then do the action themselves. For example,
if their owner jumps in the air and then gives the “Do it!” command, the dog
would jump in the air too. The fact that dogs can be trained in this way alone was
not enough to prove episodic memory. That is because it needed to be shown that
dogs remember what they just saw a person do even when they were not expecting
to be asked or rewarded. To get around this problem, the researchers first
trained 17 dogs to imitate human actions with the ‘Do as I Do’ training method.
Next, they did another round of training in which dogs were trained to lie down
after watching the human action, no matter what it was. After the dogs had
learned to lie down reliably, the researchers surprised them by saying “Do It”
and the dogs did. The dogs recalled what they had seen the person do even
though they had no particular reason to think they would need to remember. They
showed episodic-like memory.

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