Effective paradigm design

David I. Donaldson*, Randy L. Buckner

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

Advances in functional magnetic resonance imaging (fMRI) are affording numerous new ways to design and analyse brain-imaging studies. A major driving force for these advances has been the widespread use of MRI scanners capable of ultra-fast imaging. This chapter aims to review key aspects of magnetic resonance imaging (MRI) technology and of the underlying physiology that constrains paradigm design for functional brain imaging. It reviews issues related to the design of event-related experimental paradigms and discusses how event related procedures have extended the range of questions that can be dealt. The chapter introduces the concept of mixed 'blocked and event-related' procedures. The development of such 'mixed' procedures widens the spectrum of task designs and analytical techniques that can be used. The chapter also extends the range of questions that can be addressed with fMRI, and presents a brief review of the underlying characteristics of the haemodynamic response, to provide a framework for discussion of event-related methods and their derivatives.

Original languageEnglish
Title of host publicationFunctional Magnetic Resonance Imaging
Subtitle of host publicationAn Introduction to Methods
PublisherOxford University Press
ISBN (Electronic)9780191724770
ISBN (Print)9780192630711
DOIs
Publication statusPublished - 22 Mar 2012

Keywords

  • Blocked procedure
  • Brain imaging
  • Event-related procedure
  • Haemodynamic response
  • MRI scanner
  • Paradigm design

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