Chewing-gum flavor affects measures of global complexity of multichannel EEG

Global complexity of spontaneous brain electric activity was studied before and after chewing gum without flavor and with 2 different flavors. One-minute, 19-channel, eyes-closed electroencephalograms (EEG) were recorded from 20 healthy males before and after using 3 types of chewing gum: regular gum containing sugar and aromatic additives, gum containing 200 mg theanine (a constituent of Japanese green tea), and gum base (no sugar, no aromatic additives); each was chewed for 5 min in randomized sequence. Brain electric activity was assessed through Global Omega (Ω)-Complexity and Global Dimensional Complexity (GDC), quantitative measures of complexity of the trajectory of EEG map series in state space; their differences from pre-chewing data were compared across gum-chewing conditions. Friedman Anova (p < 0.043) showed that effects on Ω-Complexity differed significantly between conditions and differences were maximal between gum base and theanine gum. No differences were found using GDC. Global Omega-Complexity appears to be a sensitive measure for subtle, central effects of chewing gum with and without flavor.

Josef Gum, Rollenbild

Original eigenhändig signiert

Josef Gum, Brustbild

Signatur des Originals: S 36/F00629

Josef Gum, Brustbild

Signatur des Originals: S 36/F00630

Campaña de Bolívar; estudio crítico de las campañas de 1824, de la Confederación Perú-Boliviana y del Pacifico hasta la Breña.

Mode of access: Internet.

Fossil birds, with especial reference to the birds of Rancho La Brea.

Includes bibliographical refernces (p.44)

The skull and dentition of a camel from the Pleistocene of Rancho La Brea,

Mode of access: Internet.

Gum diseases of citrus in California /

Mode of access: Internet.

A new antelope from the Pleistocene of Rancho La Brea,

Mode of access: Internet.

The condor-like vultures of Rancho la Brea,

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A treatise on the synochus atrabiliosa, a contagious fever : wich raged at Senegal in the year 1778, and proved fatal to the greatest part of the europeans, and to a number of the natives : to which is prefixed, a Journal of the Weather during the Prevalence of that disease ...: and annexed to it, a short reflexion on the gum trade of Senegal, and the importance of the place on that account /

Mode of access: Internet.

Research in gum, dust and rust filtering.

cover-title

Natural history of the insect which produces the gum Lacca.

Mode of access: Internet.