The ICCAM platform study: An experimental medicine platform for evaluating new drugs for relapse prevention in addiction. Part B: fMRI description

John McGonigle, Anna Murphy, Louise Paterson, Laurence Reed, Liam J. Nestor, Jonathan Nash, Rebecca Elliott, Karen D. Ersche, Remy Flechais, Rexford Newbould, Csaba Orban, Dana Smith, Eleanor Taylor, Adam D. Waldman, Trevor W. Robbins, J. F. William Deakin, David J. Nutt, Anne Lingford-Hughes, John Suckling

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Objectives:
We aimed to set up a robust multi-centre clinical fMRI and neuropsychological platform to investigate the neuropharmacology of brain processes relevant to addiction – reward, impulsivity and emotional reactivity. Here we provide an overview of the fMRI battery, carried out across three centres, characterizing neuronal response to the tasks, along with exploring inter-centre differences in healthy participants.

Experimental design:
Three fMRI tasks were used: monetary incentive delay to probe reward sensitivity, go/no-go to probe impulsivity and an evocative images task to probe emotional reactivity. A coordinate-based activation likelihood estimation (ALE) meta-analysis was carried out for the reward and impulsivity tasks to help establish region of interest (ROI) placement. A group of healthy participants was recruited from across three centres (total n=43) to investigate inter-centre differences.

Principle observations:
The pattern of response observed for each of the three tasks was consistent with previous studies using similar paradigms. At the whole brain level, significant differences were not observed between centres for any task.

Conclusions:
In developing this platform we successfully integrated neuroimaging data from three centres, adapted validated tasks and applied whole brain and ROI approaches to explore and demonstrate their consistency across centres.
Original languageEnglish
Pages (from-to)3-16
Number of pages14
JournalJournal of Psychopharmacology
Volume31
Issue number1
Early online date4 Oct 2016
DOIs
Publication statusPublished - 1 Jan 2017
Externally publishedYes

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