Motor Imagery in Aphantasia
ConditionAphasia
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorHôpital le Vinatier
About this trial
The present study aims to characterize and modulate motor imagery abilities in individuals with aphantasia. The investigators will characterize the neurophysiological and physiological underpinnings of mental imagery abilities in participants with aphantasia by investigating several indices of motor imagery abilities and comparing them to participants with typical mental imagery abilities. The investigators will investigate whether non-invasive brain stimulation applied to the primary motor cortex improves mental imagery abilities in participants with aphantasia.
Eligibility criteria
Qualifiers
For the aphantasia group only: congenital aphantasia defined as a life-long inability to generate mental imagery (confirmed by a total score of 32 or less on the VVIQ, which is the gold standard questionnaire for aphantasia)
For the no-aphantasia group only: typical mental imagery capacities (confirmed by a total score of more than 32 on the VVIQ)
Covered by public health insurance
Understanding the French language
Disqualifiers
Presence or history of a somatic, neurologic, or mental illness
Actual pain or musculoskeletal disorders at the upper limb
Having a regular musical activity (more than once a week) because of high manual dexterity
Contraindication for noninvasive brain stimulation including the presence of ferromagnetic or magnetic sensitive metal objects implanted in the head or in close proximity (e.g., brain stent, clip, cochlear implants, or stimulator)
Trial design
Treatments tested in this trial
- High-definition transcranial direct current (HD-tDCS), active condition
- High-definition transcranial direct current (HD-tDCS), sham condition
Treatment groups
40 Participants
are divided into 2 treatment groupsSponsors and collaborators
Source ClinicalTrials.gov