What is the relationship between the ego, amygdala and consciousness? I've been reading a lot about emotional responses lately, and the following points seem to surface in different writings:


  "Amygdala is a very ancient system, intended to quickly alert a
  person of danger".


At the same time, we have a part of our consciousness, where thoughts of danger, lack or negativity towards others may arise. I've seen spiritual/personal development writers attribute these thoughts to the function of the ego. I'm not sure if they are using the term correctly, as they have a mostly negative perception of the ego, as something that strives to dominate cognition and act out of fearful/selfish desires.  Here's a description from wikipedia:


  The ego is the organized part of the personality structure that
  includes defensive, perceptual, intellectual-cognitive, and executive
  functions.


I'm trying to understand - Is person's ego a projection of the responses of their amygdala onto the conscious experience?

I've looked around and see some bloggers like this one make a claim that the amygdala and the ego are one and the same. Is this true?

To clarify my question - I'm seeking to understand if there's a structure/process in cognition that integrates input from various "lower mammal brain" structures and translates them into thoughts?
Assuming your question is "Is person's ego a projection of the responses of their amygdala onto the conscious experience?", I think it would translate to "Does the amygdala determines or houses the ego". In that light, the question hinges on the meaning of ego. Given the question is asked at Cognitive Sciences SE, I assume the ego is "The part of the mind that mediates between the conscious and the unconscious and is responsible for reality testing and a sense of personal identity". In that case I would say no, the amygdala is not involved in the ego.

Generally, the amygdala is considered to be an essential part of the limbic system. The limbic system controls the core emotions (fear, pleasure, anger) and drives behaviors essential to life (hunger, sex, and the care of offspring). The functions of the amygdala are indeed mainly associated with emotions, but also with learning and memory (Martin &amp; Hans, 1985). A notable example is post-traumatic stress disorder (Shin et al., 2006), where it mediates imprinting of memories through fear. 

However, the amygdala definitely shapes "the self". Given the Latin meaning of "ego" (literally, "I") one could definitely argue for an essential role of the amygdala in the ego. In that context, though, arguably every single part of the brain at the macroscopic level is an essential part of the ego. 

PS: the 'blog' you linked is an advertisement for the services of Sara Harvey, a personal coach for folks with executive functions. Not the most reliable source of information.

References
- Martin &amp; Hans, Behav Neurosci (1985); 99(2):342-80
- Shin et al., Ann NY Acad Sci (2006); 1071: 67–7