PDTE 2011 July Newsletter
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<strong>PDTE</strong> AGM MEETING In SPAIN 25 – 26 September 2010<br />
What is memory?<br />
Memory is an accumulation of things that<br />
have been learnt, or experiences that have<br />
been experienced and that are stored in<br />
the brain.<br />
This includes facts, events, spatial mapping<br />
(where to find things), physical processes<br />
/ motor skills (how to do activities)<br />
Your brain has stored a range of different<br />
facts — what you had for breakfast yesterday,<br />
the date you were born or that Paris<br />
is the capital of France and Helsinki is the<br />
capital of Finland.<br />
SPATIAL MAPPING just means where<br />
things are in life, where you find things,<br />
where the bathroom is, how you get from<br />
home to work or how you get from home to<br />
the supermarket.<br />
Also, you remember how to do things.<br />
PHYSICAL PROCESSES are what we call<br />
motor skills, how to do things like swim or<br />
jump or brush your teeth, or play the piano<br />
or drive a car.<br />
All of these things make up what we call<br />
memory.<br />
Types of dog memory<br />
MEMORY MATTERS<br />
Understanding memory and its effects on behaviour modification in the dog<br />
As humans we have two main types of<br />
memory:<br />
1) DECLARATIVE MEMORY.<br />
That means that we can state, or declare,<br />
certain facts.<br />
• Semantic memory (facts / figures)<br />
Semantic memory is memory concerning<br />
specific facts such as Helsinki being the<br />
capital of Finland, or that the next Olympic<br />
games is London 2012. You know (hopefully!)<br />
that 2 x 2 = 4 and how to tell the<br />
time from looking at a clock face.<br />
As far as we can tell dogs do not have<br />
semantic memory.<br />
• Episodic memory (events)<br />
Also part of declarative memory, things<br />
we can declare, is EPISODIC MEMORY.<br />
This refers to episodes, things that have<br />
happened to us or to those around us.<br />
The simple word for that is “events”. So<br />
you may remember your 25th birthday or<br />
your first day at school, or your wedding.<br />
Amber Batson, BVetMed MRCVS, ENGLAND<br />
All this is part of your declarative memory.<br />
Dogs have this type of memory, we may<br />
not know the exact details of an event they<br />
remember but we all know dogs remember<br />
events that happen to them.<br />
2) PROCEDURAL MEMORY<br />
This includes motor skills and emotional<br />
responses.<br />
• Motor skills<br />
Playing tennis, for example, is a physical<br />
skill. You have to learn how to throw a<br />
ball up and how to swing a racket. It is a<br />
physical skill to learn to ride a bicycle or<br />
a horse, or drive a car, or simply to climb<br />
stairs.<br />
• Emotional responses<br />
Emotional responses, like when you are<br />
really scared, involve a physical process<br />
like running away, or hiding, known as fight<br />
or flight. Emotional responses are part of<br />
procedural memory because they involve<br />
procedures, things that we do. And this is<br />
very relevant because dogs have these<br />
types of memories too.<br />
To recap, then, as far as we know dogs<br />
do not have semantic memory. It is very,<br />
very hard to prove that dogs remember<br />
facts or figures. Nobody has yet demonstrated<br />
that dogs can learn multiplication<br />
or addition. They might have a response,<br />
but they don’t seem to hold the fact in their<br />
head. They don’t know that the capital of<br />
Germany is Berlin.<br />
But they do have episodic memory; they<br />
have event memory and they do have motor<br />
skills and emotional responses, which<br />
are procedural memory. A dog definitely<br />
remembers being beaten up by a cat as an<br />
event! That is declarative memory. They<br />
remember having had a painful injection<br />
at the vet’s. Equally, they can learn motor<br />
skills like offering a paw or going through<br />
weave bars or catching a rabbit. They also<br />
have emotional fight or flight responses.<br />
They remember being chased by a horse,<br />
but they also knew at that moment how to<br />
run away from it.<br />
Dogs can learn a whole range of cues to<br />
certain activities. They can learn how to<br />
negotiate agility courses. For example, a<br />
dog can easily run under the agility bar,<br />
but he has learnt that in order to get a<br />
reward (reinforcement) — whatever that<br />
reinforcement is — he should jump over<br />
the bar. We’ve been able to teach dogs to<br />
find drugs, and they know that if they find<br />
the drug, they will get a reward (not the<br />
drug). We have taught them to be obedience<br />
tasks, agility tasks and even to be<br />
assistance dogs – letting us know when<br />
the phone rings, picking things up, moving<br />
things around.<br />
Therefore, if we understand how memory<br />
works in dogs, we can be better trainers.<br />
It means we can be better at fixing and resolving<br />
learnt undesirable behaviours. For<br />
example, say I don’t want my dog to jump<br />
up anymore. I want it to keep all its feet<br />
on the floor when I come home from work,<br />
I teach it a new behaviour - a new thing,<br />
a new memory. We’ll be better placed to<br />
fix behavioural problems if we understand<br />
how they got the behaviour in the first<br />
place — why they have a memory that<br />
causes a problem and very importantly, we<br />
might even be able to prevent behavioural<br />
problems by affecting their memories as<br />
well.<br />
We also have something called SHORT-<br />
TERM MEMORY and something called<br />
LONG-TERM MEMORY.<br />
THE HERE AND NOW – Short-term<br />
memory<br />
Short-term memory is information that’s<br />
coming in right now from the environment<br />
and from your mind, and you’re aware of it<br />
at this moment. But you’re only aware of it<br />
for very short periods.<br />
Normally you can only hold on to this<br />
awareness for a few moments.<br />
LONG-TERM memory is information that’s<br />
been previously stored, and you retrieve it<br />
from where it is stored and use it.<br />
Short-term memory seems to contain 5-9<br />
slots.<br />
Short-term memory can only hold information<br />
within this number of slots for a few<br />
seconds before forgetting the information.<br />
Increasing the amount of information starts<br />
to displace information from the slots.<br />
For example, if I were to ask you to close<br />
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