Table 1.

Clinical information of the patients in whom focal deactivations had been observed using the standard analysis (postspike)

Patient	Age	Epilepsy	Structural MRI	EEG spikes	Early prespike (−9) to (−5)	Prespike (−3) to (+1)	Postspike (+3) to (+9)
1	40	Temporal	Right hippocampal sclerosis	Right anterior and midtemporal region	None	None	Deactivation over right mesial temporal region
2	29	Extra-FTLE	Right temporal atrophy	Right parietal region	None	None	Deactivation over right parietal region
3	20	Frontal	T2 signal abnormality over the left frontal lobe	Left frontotemporal region	None	Preceding deactivation inferior left frontal lobe	Focal deactivation inferior left frontal lobe
4	23	Frontal	Focal cortical dysplasia at right prerolandic region	Right frontocentral region	None	Preceding deactivation over posterior aspect of the right frontal lobe	Deactivation over posterior aspect of the right frontal lobe (perilesional)
5	50	Frontal	Low grade glioma at left frontal lobe	Left frontal region	Area of activation partially concordant to the deactivation	Preceding deactivation involving part of inferior region of the left fontal lobe	Focal deactivation seen inferior region of the left frontal lobe
6	24	Temporal	Normal	Left anterior temporal region	Preceding deactivation over left anterior temporal region	Preceding deactivation over the left anterior temporal region	Focal deactivation over the left anterior temporal region
7	26	Temporal	Periventricular band heterotopia	Left posterior temporal region	Focal activation over the left posterior temporal region (concordant)	None	Left posterior temporal deactivation
8	30	Frontal	Left hemimegalencephaly	Left frontocentral spikes	None	None	Focal deactivation over left parasagittal frontal region

The distribution of the prespike and early prespike BOLD in these regions is shown.

FTLE, frontotemporal lobe epilepsy.