I originally found out about Concept Draw from a writing group site. I guess they have a separate product Concept Draw Mind Map, for handling neural idea organization a la the Brain. In evaluating the core Concept Draproduct it looks very similar to Visio, but seems to have a more modern set of export formats, to graphics or to PDF for instance. The version of Visio I used at Blue Cross Blue Shield did not have all of these export formats.
I was a little disappointed in their templates. The preview icon for how the template will look like shows color and effects, whereas a document generated from the template does not really load automatically with the colors and effects.
I knew a speaker, Pablo Celi, in the Lawson Thrillspeakers that used a neural chart for his speech notes.