What I mean by memory model is the way our brain handles access to information and structures the flow of thought. Thought can exist without emotion, and likely

What I mean by memory model is the way our brain handles access to information and structures the flow of thought. Thought can exist without emotion, and likely does in many living things, but I think the way we structure language is specifically related to our capacity for emotion and the way we attach abstract emotional states to sensory stimulation. I would consider emotion the precursor to symbolic thought in the specific way we do it.