Study: NCT04606095

Intervention type: DIAGNOSTIC_TEST
Group type: EXPERIMENTAL
Intervention: EEG
Description: EEG with QST (evoked Pain and Visual Stimulation Assessment)

Intervention type: DIAGNOSTIC_TEST
Group type: EXPERIMENTAL
Intervention: EEG
Description: EEG with QST (evoked Pain and Visual Stimulation Assessment)

Intervention type: DIAGNOSTIC_TEST
Group type: EXPERIMENTAL
Intervention: EEG
Description: EEG with QST (evoked Pain and Visual Stimulation Assessment)

Intervention type: DIAGNOSTIC_TEST
Group type: SHAM_COMPARATOR
Intervention: EEG
Description: EEG with QST (evoked Pain and Visual Stimulation Assessment)

Intervention type: DIAGNOSTIC_TEST
Group type: EXPERIMENTAL
Intervention: EEG
Description: EEG with QST (evoked Pain and Visual Stimulation Assessment)

Intervention type: DIAGNOSTIC_TEST
Group type: EXPERIMENTAL
Intervention: Neuroimaging EEG/fMRI
Description: This will be done to monitor areas of the brain that are involved in thinking and processing pain. The scanner stimulates the brain to send out signals that will be recorded and analyzed. Additionally, during the MRI the participants brain's electrical activity with will be measured with an EEG machine for part of the MRI. About halfway through the scan, participants will have the EEG equipment removed and then will return to the fMRI scanner for a few additional scans.

Intervention type: DIAGNOSTIC_TEST
Group type: EXPERIMENTAL
Intervention: Neuroimaging EEG/fMRI
Description: This will be done to monitor areas of the brain that are involved in thinking and processing pain. The scanner stimulates the brain to send out signals that will be recorded and analyzed. Additionally, during the MRI the participants brain's electrical activity with will be measured with an EEG machine for part of the MRI. About halfway through the scan, participants will have the EEG equipment removed and then will return to the fMRI scanner for a few additional scans.

Intervention type: DIAGNOSTIC_TEST
Group type: EXPERIMENTAL
Intervention: Neuroimaging EEG/fMRI
Description: This will be done to monitor areas of the brain that are involved in thinking and processing pain. The scanner stimulates the brain to send out signals that will be recorded and analyzed. Additionally, during the MRI the participants brain's electrical activity with will be measured with an EEG machine for part of the MRI. About halfway through the scan, participants will have the EEG equipment removed and then will return to the fMRI scanner for a few additional scans.

Intervention type: DIAGNOSTIC_TEST
Group type: SHAM_COMPARATOR
Intervention: Neuroimaging EEG/fMRI
Description: This will be done to monitor areas of the brain that are involved in thinking and processing pain. The scanner stimulates the brain to send out signals that will be recorded and analyzed. Additionally, during the MRI the participants brain's electrical activity with will be measured with an EEG machine for part of the MRI. About halfway through the scan, participants will have the EEG equipment removed and then will return to the fMRI scanner for a few additional scans.

Intervention type: DIAGNOSTIC_TEST
Group type: EXPERIMENTAL
Intervention: Neuroimaging EEG/fMRI
Description: This will be done to monitor areas of the brain that are involved in thinking and processing pain. The scanner stimulates the brain to send out signals that will be recorded and analyzed. Additionally, during the MRI the participants brain's electrical activity with will be measured with an EEG machine for part of the MRI. About halfway through the scan, participants will have the EEG equipment removed and then will return to the fMRI scanner for a few additional scans.

Intervention type: DEVICE
Group type: EXPERIMENTAL
Intervention: HD-tDCS treatments
Description: HD-tDCS treatments (5 active and 5 sham)