103. Reward Sensitivity and “unbalance” cortical effect as a biomarker of new addictions. A multi-method study

Michela Balconi, Roberta Finocchiaro, A. Pecoraro

Risultato della ricerca: Contributo in rivistaContributo a convegnopeer review

Abstract

The present study explored the effect of cortical lateralisation activity during the decisional process in a gambling context. It is assumed that increasing of the left DLPFC activity and personality trait make subjects’ strategies more disadvantageous and “gambling” during an online game. Twenty-one subjects were tested using the IGT and GO/noGo task while the EEG was registered and alpha-band modulation was considered. Secondly, the Behavioral Activation System (BAS)/Behavioral Inhibition System (BIS) scale was used to test the effect of reward sensitivity. Moreover, metacognitive questionnaire was applied. It was found that high-BAS subjects increased their tendency to opt in favour of the immediate reward rather than the long-term option, while a significant increasing of the left-hemisphere activation was found in response to immediate reward choices compared to low-BAS subjects. Finally, they tended to have difficulties to inhibit the automatic response, and they showed dysfunction of metacognitive abilities. A reward bias effect was supposed to explain both the bad strategy and the unbalanced hemispheric activation for high-BAS subjects. These findings could have important repercussions in the social context for the prevention of dysfunctional behaviours that affect compulsive disorders like new forms of addiction.
Lingua originaleEnglish
pagine (da-a)e156-N/A
Numero di pagine1
RivistaClinical Neurophysiology
Volume127
DOI
Stato di pubblicazionePubblicato - 2016
Evento60° Congresso Nazionale SINC - Società Italiana di Neurofisiologia Clinica - Verona
Durata: 20 mag 201523 mag 2015

Keywords

  • Addiction
  • Biomarker
  • Reward

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