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

Michela Balconi, Roberta Finocchiaro, Andrea Pecoraro

Risultato della ricerca: Contributo in libroContributo a convegno

Abstract

The present research explored the effect of cortical lateralisation activity during the decisional process in a gambling context. We supposed 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 use for testing the effect of reward sensitivity and 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, that it was correlate with a significant increasing of the left-hemisphere activation in response to immediate reward choices if compared to low-BAS subjects. Finally, they tended to have difficulties to inhibit the automatic response, and they show a dysfunctional metacognition abilities. A reward bias effect was supposed to explain both the bad strategy and the unbalanced hemispheric activation for high-BAS and more risk-taking 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
Titolo della pubblicazione ospiteProgramma del «60° Congresso Nazionale SINC - Società Italiana di Neurofisiologia Clinica»
Pagine31
Numero di pagine1
Stato di pubblicazionePubblicato - 2015
Evento60° Congresso Nazionale SINC - Società Italiana di Neurofisiologia Clinica - Verona
Durata: 20 mag 201523 mag 2015

Convegno

Convegno60° Congresso Nazionale SINC - Società Italiana di Neurofisiologia Clinica
CittàVerona
Periodo20/5/1523/5/15

Keywords

  • Addiction
  • EEG
  • Reward mechanism

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