Publication

EEG Correlates of Pleasant and Unpleasant Odor Perception

Touradj Ebrahimi, Jean-Marc Vesin
2014
Journal Articles

Abstract

Olfaction-enhanced multimedia experience is becoming vital for strengthening the sensation of reality and the quality of user experience. One approach to investigate olfactory perception is to analyze the alterations in brain activity during stimulation with different odors. In this article, the changes in the electroencephalogram (EEG) when perceiving hedonically-different odors are studied. Results of within and across-subject analysis are presented. We show that EEG-based odor classification using brain activity is possible and can be used to automatically recognize odor pleasantness when a subject-specific classifier is trained. However, it is a challenging problem to design a generic classifier.

Official source

https://infoscience.epfl.ch/entities/publication/440c6d38-f3fc-4993-96ce-bfe52ac94a16

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Touradj Ebrahimi, Jean-Marc Vesin
2014
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/440c6d38-f3fc-4993-96ce-bfe52ac94a16

About this result

Related concepts (27)

Electroencephalography

Electroencephalography (EEG) is a method to record an electrogram of the spontaneous electrical activity of the brain. The biosignals detected by EEG have been shown to represent the postsynaptic potentials of pyramidal neurons in the neocortex and allocortex. It is typically non-invasive, with the EEG electrodes placed along the scalp (commonly called "scalp EEG") using the International 10–20 system, or variations of it. Electrocorticography, involving surgical placement of electrodes, is sometimes called "intracranial EEG".

Perception

Perception () is the organization, identification, and interpretation of sensory information in order to represent and understand the presented information or environment. All perception involves signals that go through the nervous system, which in turn result from physical or chemical stimulation of the sensory system. Vision involves light striking the retina of the eye; smell is mediated by odor molecules; and hearing involves pressure waves.

Neural oscillation

Neural oscillations, or brainwaves, are rhythmic or repetitive patterns of neural activity in the central nervous system. Neural tissue can generate oscillatory activity in many ways, driven either by mechanisms within individual neurons or by interactions between neurons. In individual neurons, oscillations can appear either as oscillations in membrane potential or as rhythmic patterns of action potentials, which then produce oscillatory activation of post-synaptic neurons.

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EEG Correlates of Pleasant and Unpleasant Odor Perception

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