There are ways in which you can make that distinction objective to a certain degree. For example, by looking at responses that could be generated in the brain to exactly the same stimulus and there could be differences there.
Antonio DamasioA self that is very robust, that has many, many levels of organization, from simple to complex, and that functions as a sort of witness to what is going on in our organisms.
Antonio DamasioLeaving out appraisal also would render the biological description of the phenomena of emotion vulnerable to the caricature that emotions without an appraisal phase are meaningless events. It would be more difficult to see how beautiful and amazingly intelligent emotions can be, and how powerfully they can solve problems for us.
Antonio DamasioWe remove ourselves from the experience itself to a surrogate of the experience, which is whatever measure you take from the brain, be it the electroencephalogram or magnet encephalography or say functional magnetic resonance. So it's pretty tough to make those comparisons.
Antonio Damasio