Table 1.

Characterization of the EEG-fMRI datasets for all patients.

Patient	Age [years]	Dataset	Duration [min]	# IEDs	Mean head displacement [mm]	Clinical Condition
P1	8	1*	10	387	N.A.	CSWS1, with right neonatal thalamic hemorrhage and IEDs over the posterior right quadrant epileptogenic focus and frontal propagation.
		2	20	754	0.26
		3	10	292	0.12
P2	9	1*	10	164	N.A.	CSWS1, with IEDs over the left temporal lobe, and verbal agnosia (Wernicke type) and impaired ability to sustain attention.
		2	10	596	0.04
		3	20	738	0.06
P3	11	1*	10	—	N.A.	Childhood absence epilepsy (CAE), with IEDs restricted to the left hemisphere.
		2	10	1 (seizure)	0.14
P4	27	1*	10	70	N.A.	Refractory focal epilepsy, with IEDs over the posterior occipital-temporal lobe, and frontal propagation.
		2	10	15	0.19
		3	20	7	0.21
P5	33	1*	10	837	N.A.	Continuous partial epilepsy, with large left-temporal cortical dysplasia, accompanied by continuous myoclonias of the right hand.
		2	10	288	0.16
		3	10	287	0.12
		4	10	342	0.15
P6†	15	1*	10	0	N.A.	Benign occipital epilepsy, with IEDs prominently over the left hemisphere.
		2	5	0	0.18
		3	20	0	0.11
		4	10	0	0.13
P7†	15	1*	10	0	N.A.	IEDs over the frontal lobe bilaterally, with a hypothesized hypothalamic hamartoma.
		2	10	0	0.23
		3	10	0	0.19
P8†	16	1*	10	0	N.A.	IEDs over the frontal lobe and a poorly characterized hyper-intense region on structural MR images, compatible with an hypothalamic hamartoma.
		2	10	0	0.12
		3	10	0	0.10

The duration of the datasets, the number of IEDs/seizures identified in each case, and the mean head displacement are reported, the latter estimated by the FSL’s motion correction tool (MCFLIRT³⁹). A brief description of each patient’s clinical picture at the time of the simultaneous EEG-fMRI studies is also provided. The EEG datasets acquired outside the MR scanner are indicated by the*. The patients with no clear epileptic activity recorded on the EEG are indicated by^†.