Table 1

Functional magnetic resonance imaging studies involving patients at clinical high risk for psychosis included in the meta-analysis

			Control			High-risk

Study	Year	High-risk assessment	No.	% female	Age, yr	No.	% female	Age, yr	Tesla	fMRI method	Statistical threshold	Task
Brüne et al.26	2011	SIPS+BSABS	26	34	29	10	30	26	1.5	SPM5	Unc	Theory of mind
Fusar-Poli et al.27	2010	CAARMS	15	46	25	15	40	24	1.5	SPM5	FWE	Paired associate learning
Allen et al.28	2010	CAARMS	15	46	26	15	40	27	1.5	SPM2	Corr	Sentence completion task
Sabb et al.29	2010	SIPS	24	50	19	43	40	18	3	FSL	Corr	Language processing
Pauly et al.30	2010	CAARMS	12	17	24	12	17	24	1.5	SPM2	Monte Carlo	N-back
Broome et al.31	2010	CAARMS	15	30	25	17	30	24	1.5	XBAM	FDR	Random movement generation
Allen et al.32	2009	CAARMS	22	36	28	18	44	27	1.5	SPM2	FWE	False memory task
Broome et al.10	2009	CAARMS	15	30	25	17	30	24	1.5	XBAM	FDR	Verbal fluency, n-back
Benetti et al.33	2009	CAARMS	14	36	26	16	38	24	1.5	SPM5	FWE	Delayed match to sample
Seiferth et al.34	2008	SIPS	12	17	25	12	17	25	1.5	SPM2	FWE	Emotional faces

BSABS = Bonn Scale for Assessment of Basic Symptoms;35 CAARMS = Comprehensive Assessment for the At-Risk Mental State;36 corr = corrected for multiple comparisons; FDR = false discovery rate; fMRI = functional magnetic resonance imaging; FWE = family-wise error; SIPS = Structured Interview for Prodromal Symptoms;37 unc = uncorrected for multiple comparisons.