Tuesday, 6 December 2016

Depression May Up Risk Of Arthritis, Find Study

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.

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.