Measurement of Human Brain Activity Evoked by Stimulation of Beer Bitterness Using Magnetoencephalography

Abstract

We tried to detect the human brain activity evoked by beer taste using magnetoencephalography. Subjects did not perceive bitterness and tactile stimulus differences between water and commercial beer, through a small hole of the taste stimulator, but they perceived bitterness for the beer enriched with isohumulones. The increase in the magnetic fields after the stimulation onset was observed for the stimulus of the beer with addition of isohumulones but was not observed for the stimulus of water or commercial beer, supporting the subject's comments. In 76.2% of the all measurements for the beer enriched with isohumulones, the equivalent current dipoles, placed on a subject's 3-dimensional magnetic resonance imaging, were located at the transition between the parietal operculum and the insular cortex with latency at 326.7 Ϯ Ϯ Ϯ Ϯ Ϯ 115.5 ms. These results indicated that the brain activity stimulated by beer bitterness could be detected.

Location of the Primary Gustatory Area in Humans and its Properties, Studied by Magnetoencephalography

“…These last two regions were denominated as the putative PGA by fMRI and PET studies. Kaneda et al (2004) also discovered the first cortical activation in area G with the average latency of 327 ms after the presentation of isohumulones-enriched decarbonated beer. The results also show that the activity latency in area G varies with different taste stimuli, probably because of the different transduction mechanisms in taste receptors.…”

The effects of Michelia alba oil against mould on brown rice and assessing the brain response using electroencephalogram (EEG)

“…Nowadays, brain activity, facial expression and heart rate could be used to study a physiological response of consumers (Lagast et al 2017 ). To understand of consumers’ emotional responses, non-verbal methods could be done such as look at food and smelling for cognitive by consumers (Kaneda et al 2004 ). The measurement of brain activity by electroencephalography (EEG) is one interesting technique that has recently been applied in the consumer and sensory research of food products.…”