Any type of training requires time and consistency, but the more consistent you are, the quicker you will get the desired result.  Remember, your pup wants to please you at all times.  Screaming and physical discipline only instills fear in the animal.  You must establish yourself as the "calm and assertive pack leader".  If you are not the pack leader, then your dog is, and they will run the show. 

Remember three keys:  Exercise .. then Discipline .. then Affection.  Many times we get so caught up in loving our animals (which is a great thing!) ... but that only fulfills our needs, not the dog's.  They look to us for instruction and leadership, and we owe it to them to fulfill their needs.  The AatuTamaskan especially, as a working breed, needs exercise and challenge, and if they don't have a  canine companion to keep the company, run and play with ... then YOU are that companion.

But, remember, you don't want to set up your dog to fail either.  In other words, you don't want to try to train your dog something completely new in an open field or park where they can be distracted and everything is new for them to explore, without having taught them at home first.  It's frustrating for you and your dog.

Also, reinforce GOOD behavior, not bad.  Do not provide affection until your dog is in a calm, submissive state.  When you pet, coddle or give attention to your dog when they are anxious, high energy, scared, etc., you only reinforce that behavior. (All they hear is "this is great; this is the way I want you to act".)  Wait until they are sitting calmly, laying down and relaxed to stroke and give attention.  Then they will learn that that is the desired behavior. 

When there are issues with your dog, if it is not a physical issue, 99% of the time the issue is actually stemming from the human.  (We can really screw our animals up!)  The dog lives in "the now", not in the past like humans.  They can learn, and learn quickly.  It is the human that needs to be trained to provide the proper leadership and action.  So, if you're willing to change, your dog will change to what you want them to be.  And isn't that what you want???

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I believe wholeheartedly in the philosophies and training of Cesar Millan, the Dog Whisperer.  "Train humans and rehabilitate dogs".   Visit his official website atw ww.cesarmillaninc.com  and tune into the National Geographic Channel on Friday evenings to learn from The Dog Whisperer himself.  You'll surprise yourself!!

Another good DVD (which also explains some training devices) is Don Sullivan's Perfect Dog.  There is nothing wrong with combining methods that reinforce the positive and is rewards based.  Remember, it is about dog psychology.  Just find something that works and be consistent.