WHY DOGS PULL ON A LEAD

This web page gives some explanations as to why dogs pull on their lead when it is attached to -

  • its collar
  • its harness. (See also the Harness section of this website which recommends various styles of harness that are comfortable and effective).

See also the excellent book by Turid Rugaas"What do I do when my dog pulls?" available from our web shop.

I am going to use an example of the Memory flow chart to show how a dog's mind works while walking on a collar and lead.

The dog is going for its first walk on a lead which is attached to its collar (this can be any type of collar as the consequences will be the same).

TOUCH
The dog can feel the pressure of the collar on its throat as it pulls on the lead.


BRAIN ASSESSES EVENT
Because this is the first time the dog has encountered the restriction of a lead on its collar
there are no environmental photos stored in its memory to trigger a behaviour.
Therefore, the dog's brain has to assess whether the event is rewarding, threatening or irrelevant.



Pulling makes the
handler move faster.
  1. The pressure and choking sensation in its throat is
    unpleasant and painful. *
  2. It has to compensate its loss of balance by distorting and
    straining some of its throat, neck and back muscles. *
  3. Because it's head is restricted, it cannot stimulate its mind
    or relax by sniffing the ground. *
  4. It cannot control its body posture to give the correct calming
    signals
    to other dogs or its handler.
VERY
REWARDING
UNPLEASANT
or
IT IS VERY
UNPLEASANT
  • The walk finishes
    faster. *
  • All the Threatening
    effects of the lead
    & collar disappear
    when the lead is
    removed. *
  • It reaches a
    pleasant destination
    (eg. Home, car, off-
    lead walk, training
    or work area, or
    stimulating
    environment) *
 
 
SHORT-TERM
MEMORY
 
REINFORCED
The unpleasant side
effects of the collar
become even more
stressful for the dog
each time it is taken
for a walk and it pulls
on the lead. *
Either STOPS
PULLING ON

LEAD

or it becomes a
"GOOD"

"BAD"
ENVIRONMENTAL
PHOTO

stored in
LONG-TERM
MEMORY

THE DOG'S LEAD IS ATTACHED TO ITS COLLAR ON ITS NEXT WALK
 
 
ITS BRAIN MATCHES THE SENSATION IT FEELS ON ITS THROAT & NECK
WITH THAT OF THE "LEAD PULLING PHOTO" IN ITS LONG-TERM MEMORY
 
 
TRIGGERS THE
DOG TO PULL ON
LEAD TO GAIN
REWARDS LISTED
ABOVE
TRIGGERS THE DOG TO
IGNORE THE SENSATION ON
ITS THROAT & NECK AND
CARRY ON PULLING -
WHATEVER THE
CONSEQUENCES
 
TRIGGERS THE
DOG TO BECOME
STRESSED AND
PULL ON LEAD

© 2004 Copyright of Sally Hopkins - www.dog-games.co.uk

As you can see from the flow chart above, the sensation of the collar pressing against the dog's throat and neck (ie. the environmental photo) triggers the dog to repeat the behaviour it did on the first occasion.

The dog does not have the mental capacity to understand that the unpleasant sensations on its throat and neck are the result of it pulling against the lead, and that if it stopped pulling the pain would disappear.

* Stress is very big contributing factor as to why so many dogs pull on their lead (see also Leash Stress). This is because all the reasons listed on the flow chart with a * next to them cause the dog's stress levels to rise. These high levels of stress produce chemicals in the dog's brain and body which inhibit the dog's pain sensitivity and make it pull even more, despite the obvious discomfort that the dog is in. It is a vicious circle that is hard to break, but can often be done by

changing the environmental photo that the dog has while walking on a lead.

This is done by attaching the dog's lead to a comfortable and well-fitting HARNESS, which -

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