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Fig. 11.3
Ekman
'
s primary
emotions placed in the
bidimensional space of
emotions
dimension to the
first dimension of vigilance. There are many de
nitions and
representations of emotions in the psychological
field of study, but nowadays, few
of them are used in computer science.
We chose to use the same model as in Livingstone et al. (
2010
) and Wallis et al.
(
2008
), commonly used in psychology under the name of Plutchik
'
s emotions
wheel (Russel
1980
). It is a bidimensional space de
ned by two axes corresponding
to excitation (which we consider to be the same as vigilance in the context of music
generation), and to valence (pleasure/unpleasure), in which we can place Ekman
'
s
primary emotions (Ekman
1992
) (see Fig.
11.3
).
11.3.2 Care Project
—
eMotion Software
Our collaboration in the context of the Care project (Clay et al.
2011
) with a team
studying motion-based emotions recognition allowed us to test the generation of
music using the bidimensional space of emotions.
For the interactive dance show that was presented as the conclusion of this
project, we generated all the music and sounds in real time with MuZICO.
11.3.3 Validation of the System by the Audience
The audience that came to see the second representation of the Care project
'
s end show
was given questionnaires in order for the scienti
c team to collect feedback from them
(Clay et al.
2012
): The second representation of the show was presented in front of an
audience of about 120 people. Upon their arrival, we distributed them question-
naires for collecting feedback about the show. We collected 97 questionnaires
