A low-cost system for monitoring skin conductance during functional MRI.
We built a low-cost system for monitoring human skin conductance responses (SCRs) in a clinical magnetic resonance (MR) scanner during functional imaging. The average scanner-induced conductance noise level was suppressed sufficiently to allow SCR measurements over the full range of SCR amplitudes, and functional image signal-to-noise ratio was unaffected by the skin conductance apparatus. The system may be useful for a variety of imaging studies.
Shastri
A
A
Functional Neuroimaging Research Division, Department of Radiology, Medical University of South Carolina, Charleston, South Carolina, USA. shastri@mnstate.edu
Lomarev
M P
MP
Nelson
S J
SJ
George
M S
MS
Holzwarth
M R
MR
Bohning
D E
DE
D005712:Galvanic Skin Response; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000295:instrumentation; D008991:Monitoring, Physiologic / Q000295:instrumentation