Table 1.

Study visit schedule

	First visit (baseline/screening, presurgical)	Second visit (presurgical)	Third visit (1 year following surgery)	Fourth visit (follow-up, postsurgical)
SCID (DSM-IV-TR)	X
MINI			X
HAMD-17	X		X
YMRS	X		X
BDI	X		X
ASRM	X		X
Anthropomorphic, glucose measures	X		X
Wechsler Abbreviated Scale of Intelligence	X		X
The Wechsler Test of Adult Reading	X		X
fMRI		X		X
Practice session		X		X
Warrington's Recognition Memory Task		X		X
Executive functioning (N-Back Task)		X		X
Declarative memory function battery
California Verbal Learning Test II (standard and alternate forms)	X		X
Wechsler Memory Scale III—Logical Memory subtest	X		X
Brief Visuospatial Memory Test—Revised	X		X
Executive functioning and attention battery
Controlled Oral Word Association Task	X		X
Stroop Colour and Word Test (Golden version)	X		X
Wisconsin Card Sorting Task (64-item version)	X		X
Colour Trails Test Part A and B	X		X
Paced Auditory Serial Attention Test	X		X
Additional self-report questionnaires
Cognitive Failure Questionnaire		X		X
Sheehan Disability Questionnaire		X		X
Berlin Sleep Questionnaire (healthy controls only)		X		X
Childhood Trauma Questionnaire		X		X
Demographics Questionnaire		X		X
Food Frequency Questionnaire*	X		X
Medications List Questionnaire*	X		X

*Both these questionnaires require extensive information (with the Food Frequency Questionnaire requiring a minimum 3-day recording of food intake). As such, they are given to study participants during their first visit at both time points to be completed and returned by their next study visit.

ASRM, Altman Self-Rating Scale for Mania; BDI, Beck Depression Inventory; DSM-IV-TR, Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision; fMRI, functional MRI; HAMD, Hamilton Rating Scale for Depression; MINI, Mini International Neuropsychiatric Interview; SCID, Structured Clinical Interview for DSM-IV; YMRS, Young Mania Rating Scale.