Skip to main content
. Author manuscript; available in PMC: 2013 Aug 15.
Published in final edited form as: Neuroimage. 2011 Oct 8;62(2):1177–1184. doi: 10.1016/j.neuroimage.2011.09.084

Figure 1. Contrasting fMRI experimental designs allow for dissociation of different task-related signals.

Figure 1

A) Block designs measure total neural activity across a task block to yield a single magnitude of activity that reflects both the sustained and all forms of transient BOLD activity. B) Event-related design utilizes jittered trials in order to model the transient responses of separate trial types. This model ignores the sustained BOLD activity and transient activity at block transitions. C) Mixed block/event-related designs allow for the simultaneous modeling of the transient, trial-related activity and the sustained, task-related BOLD activity.