Arthritis and diseases of the
digestive system are more common after depression, while anxiety disorders tend
to be followed by skin diseases, a new study was warned. For the first time,
psychologists at the University of Basel in Switzerland and Ruhr University
Bochum in Germany have identified temporal patterns in young people. If physical
and mental disorder systematically co-occur from an early age, there is a risk
that the sick child or adolescent will suffer from untoward developments. A research
group led by Marion Tegethoff in collaboration with Professor Gunther Meinlschmidt
examined the temporal pattern and relationship between physical diseases and
mental disorders. They analyzed data from a representative sample of 6,483
teenagers from the US aged between 13 and 18. It showed that affective
disorders such as depression were frequently followed by arthritis and diseases
of the digestive system, while the same relationship existed between anxiety
disorders and skin diseases.
Tuesday, 6 December 2016
Your Dogs Remembers More Than You Think
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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