title: Spectral EEG frontal asymmetries correlate with the experienced pleasantness of TV commercial advertisements.
abstract: The aim of this research is to analyze the changes in the EEG frontal activity during the observation of commercial videoclips. In particular, we aimed to investigate the existence of EEG frontal asymmetries in the distribution of the signals' power spectra related to experienced pleasantness of the video, as explicitly rated by the eleven experimental subjects investigated. In the analyzed population, maps of Power spectral density (PSD) showed an asymmetrical increase of theta and alpha activity related to the observation of pleasant (unpleasant) advertisements in the left (right) hemisphere. A correlation analysis revealed that the increase of PSD at left frontal sites is negatively correlated with the degree of pleasantness perceived. Conversely, the de-synchronization of left alpha frontal activity is positively correlated with judgments of high pleasantness. Moreover, our data presented an increase of PSD related to the observation of unpleasant commercials, which resulted higher with respect to the one elicited by pleasant advertisements.
authors.affiliation: Department of Physiology and Pharmacology, University of Rome Sapienza, Piazzale Aldo Moro 5, Rome, Italy.
authors.forename: Giovanni
authors.initials: G
authors.lastname: Vecchiato
authors.forename: Jlenia
authors.initials: J
authors.lastname: Toppi
authors.forename: Laura
authors.initials: L
authors.lastname: Astolfi
authors.forename: Fabrizio
authors.initials: F
authors.lastname: De Vico Fallani
authors.forename: Febo
authors.initials: F
authors.lastname: Cincotti
authors.forename: Donatella
authors.initials: D
authors.lastname: Mattia
authors.forename: Francesco
authors.initials: F
authors.lastname: Bez
authors.forename: Fabio
authors.initials: F
authors.lastname: Babiloni
mesh_terms: D000328:Adult; D000329:Advertising; D001931:Brain Mapping / Q000379:methods; D004569:Electroencephalography / Q000379:methods; D005260:Female; D005625:Frontal Lobe / Q000502:physiology*; D006801:Humans; D008297:Male; D057181:Pleasure / Q000502:physiology*; D012815:Signal Processing, Computer-Assisted; D013690:Television; D055815:Young Adult