Claustrophobia, or the inability to lie still in a confined space
Major medical disorders (e.g., HIV, cancer)
Magnetic metallic implants (such as screws, pins, shrapnel remnants, aneurysm clips, artificial heart valves, inner ear (cochlear) implants, artificial joints, and vascular stents)
Electronic or magnetic implants, such as pacemakers
Permanent makeup or tattoos with metallic dyes
Currently pregnant
A self-reported history of loss of consciousness (greater than 10 minutes)
Physical disabilities that prohibit task performance (such as blindness or deafness)
Psychotic disorders (e.g., schizophrenia)
Any other condition that the investigator believes might put the participant at risk

NCT02560389_exc_T1
Condition
Claustrophobia
NCT02560389_exc_T2
Observation
inability to lie still in a confined space
NCT02560389_exc_T3
Condition
medical disorders
NCT02560389_exc_T4
Qualifier
Major
NCT02560389_exc_T5
Condition
HIV
NCT02560389_exc_T6
Condition
cancer
NCT02560389_exc_T7
Scope
HIV, cancer
NCT02560389_exc_T8
Device
Magnetic metallic implants
NCT02560389_exc_T9
Device
screws
NCT02560389_exc_T10
Device
pins
NCT02560389_exc_T11
Device
shrapnel remnants
NCT02560389_exc_T12
Device
aneurysm clips
NCT02560389_exc_T13
Device
artificial heart valves
NCT02560389_exc_T14
Device
ner ear ( plants,
NCT02560389_exc_T15
Device
chlear) plants,
NCT02560389_exc_T16
Device
artificial joints
NCT02560389_exc_T17
Device
vascular stents
NCT02560389_exc_T18
Scope
screws, pins, shrapnel remnants, aneurysm clips, artificial heart valves, inner ear (cochlear) implants, artificial joints, and vascular stents
NCT02560389_exc_T19
Device
magnetic implants
NCT02560389_exc_T20
Device
ctronic or lants, s
NCT02560389_exc_T21
Device
pacemakers
NCT02560389_exc_T22
Scope
Electronic or magnetic implants
NCT02560389_exc_T23
Observation
Permanent makeup
NCT02560389_exc_T24
Observation
tattoos
NCT02560389_exc_T25
Device
metallic dyes
NCT02560389_exc_T26
Condition
pregnant
NCT02560389_exc_T27
Observation
history of loss of consciousness
NCT02560389_exc_T28
Value
greater than 10 minutes
NCT02560389_exc_T29
Qualifier
self-reported
NCT02560389_exc_T31
Condition
blindness
NCT02560389_exc_T32
Condition
deafness
NCT02560389_exc_T33
Condition
Psychotic disorders
NCT02560389_exc_T34
Condition
schizophrenia