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. Author manuscript; available in PMC: 2013 Nov 25.
Published in final edited form as: Neuropsychopharmacology. 2004 Jun;29(6):10.1038/sj.npp.1300438. doi: 10.1038/sj.npp.1300438

Figure 1.

Figure 1

Experimental design. The two factors were load (high and low) and task (manipulation and maintenance) resulting in the four conditions shown. Following a 2.5 s presentation of the stimuli, subjects were given an instruction as to what was required. A 7 s delay period followed before the probe question appeared, requiring a yes/no (button push) response. The fMRI response to the instruction and delay period was modelled.