The research project intends to demonstrate how EEG detection through BCI device can improve the analysis and the
interpretation of colours-driven cognitive processes through the combined approach of cognitive science and information
technology methods. To this end, firstly it was decided to design an experiment based on comparing the results of the
traditional (qualitative and quantitative) cognitive analysis approach with the EEG signal analysis of the evoked
potentials. In our case, the sensorial stimulus is represented by the colours, while the cognitive task consists in
remembering the words appearing on the screen, with different combination of foreground (words) and background
colours.
In this work we analysed data collected from a sample of students involved in a learning process during which they
received visual stimuli based on colour variation. The stimuli concerned both the background of the text to learn and the
colour of the characters. The experiment indicated some interesting results concerning the use of primary (RGB) and
complementary (CMY) colours.
Stereoscopic visualization in cinematography and Virtual Reality (VR) creates an illusion of depth by means of
two bidimensional images corresponding to different views of a scene. This perceptual trick is used to enhance
the emotional response and the sense of presence and immersivity of the observers. An interesting question
is if and how it is possible to measure and analyze the level of emotional involvement and attention of the
observers during a stereoscopic visualization of a movie or of a virtual environment.
The research aims represent a challenge, due to the large number of sensorial, physiological and cognitive
stimuli involved. In this paper we begin this research by analyzing possible differences in the brain activity
of subjects during the viewing of monoscopic or stereoscopic contents. To this aim, we have performed some
preliminary experiments collecting electroencephalographic (EEG) data of a group of users using a Brain-
Computer Interface (BCI) during the viewing of stereoscopic and monoscopic short movies in a VR immersive
installation.
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