Dear List Members: I am wondering how to validate general facial expressions. I see a single method: - estimate the amplitude of action units *AND* get a FACS expert who validates the data (and does not mind emotions at all) Do you have any other idea? - Are you aware of any kind of database where people respond naturally to images or sounds and they also talk about their mixed feelings? - Is there any kind of image database on facial expressions with regard to a standard emotional database, like IAPS? - Is there any general measure, such as co-measured signals (like video, fMRI, PET, EEG and gaze estimation) together with the data that was used to evoke emotions in the study and can be used for validation? I am very much looking forward to your responses. Best wishes, Andras _________________________ Andras Lorincz ECCAI Fellow http://nipg.inf.elte.hu <http://nipg.inf.elte.hu/> http://lifeboat.com/ex/bios.andras.lorincz <https://ujmail.inf.elte.hu/owa/redir.aspx?C=e8f756b9213044c5a01b702558318ef 8&URL=http%3a%2f%2flifeboat.com%2fex%2fbios.andras.lorincz> Department of Software Technology and Methodology Eotvos Lorand University Budapest, Hungary