Altered evoked responses for motor-related words in children with upper limb motor impairments

Bredikhin, Dimitri; Agranovich, Olga E.; Ulanov, Maxim; Koriakina, Maria; Шестакова, Анна; Kadieva, Dzerassa; Kopytin, Grigory; Ermolovich, Evgenia; Bermúdez-Margaretto, Beatriz; Shtyrov, Yury; Jä̈askëlainen, Iiro P.; Blagovechtchenski, Evgeny

doi:10.1016/j.clinph.2022.10.010

Cited by 3 publications

(1 citation statement)

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“…Samples exceeding 3 SDs of the mean of their respective channel were replaced with 0, and so were the samples 40 ms around such outliers (i.e., before and after; Cohen and Parra, 2016 ; Ntoumanis et al, 2023 ). For the ERP analysis, we preprocessed the data in the same way except that a different band-pass filter was applied: 0.1 Hz and 40 Hz cut-off frequencies, following previous ERP studies (Bredikhin et al, 2022 ). Also, the outliers in the ERP signals were detected based on the interquartile interval (IQR) instead of the SD, as in Rappaport et al ( 2019 ).…”

Section: Methodsmentioning

confidence: 99%

Neural mechanisms of expert persuasion on willingness to pay for sugar

Ntoumanis

Davydova

Sheronova

et al. 2023

Front. Behav. Neurosci.

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Introduction: Sugar consumption is associated with many negative health consequences. It is, therefore, important to understand what can effectively influence individuals to consume less sugar. We recently showed that a healthy eating call by a health expert can significantly decrease the willingness to pay (WTP) for sugar-containing food. Here, we investigate which aspects of neural responses to the same healthy eating call can predict the efficacy of expert persuasion.Methods: Forty-five healthy participants performed two blocks of a bidding task, in which they had to bid on sugar-containing, sugar-free and non-edible products, while their electroencephalography (EEG) was recorded. In between the two blocks, they listened to a healthy eating call by a nutritionist emphasizing the risks of sugar consumption.Results: We found that after listening to the healthy eating call, participants significantly decreased their WTP for sugar-containing products. Moreover, a higher intersubject correlation of EEG (a measure of engagement) during listening to the healthy eating call resulted in a larger decrease in WTP for sugar-containing food. Whether or not a participant’s valuation of a product was highly influenced by the healthy eating call could also be predicted by spatiotemporal patterns of EEG responses to the healthy eating call, using a machine learning classification model. Finally, the healthy eating call increased the amplitude of the P300 component of the visual event-related potential in response to sugar-containing food.Disussion: Overall, our results shed light on the neural basis of expert persuasion and demonstrate that EEG is a powerful tool to design and assess health-related advertisements before they are released to the public.

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