What do the numbers mean?

[dobey]

In the detailed API documentation it states:

The original brainwave data returned from the brainwave callback is a byte array with a length of 20, the first two bytes are the packet number, the last 18 bytes are valid brainwave data, of which the brainwave data is divided into two left and right aisle, In order: left, left, left, right, right, right, left, left, left, right, right, right, left, left, left, right, right, right

But what are these values actually of? Are they microvolts? Is there some millseconds separation between each left,right pair? Or between each left,left,left,right,right,right triplet pairing? How can I plot these values on a chart to visualize the raw brainwave readouts from the hardware?

I also see in the AffectiveCloud documentation, that it states to convert the hex values read from hardware into unsigned int values before uploading to the API, but the detailed API document here shows examples with signed values. Which is correct?