Evaluation of the Hypoalgesic Effects of Transcranial Direct Current (tDCS) in Healthy Subjects

Evaluation of the Hypoalgesic Effects of Transcranial Direct Current (tDCS) in Combination With Motion Representation Tools in Healthy Subjects: a Double-blind Randomized Placebo-controlled Trial.

The main objective of this research is to evaluate and quantify hypoalgesic effects caused by imagination and observation with or without the presence of transcranial direct current (tDCS) in healthy participants. The secondary objective of this research is to evaluate the possible relationships between hypoalgesic effects and different physical and cognitive variables such as the ability to generate motor mental images, mental chronometry and levels of physical activity.

Inclusion Criteria:

• asymptomatic participants
• men and women aged 18 to 65 years

Exclusion Criteria:

• insomnia
• nausea
• headache
• pregnant woman
• use of painkillers in the last twenty four hours
• presence of metal inside the head
• pacemaker
• wound on the area of electrodes' application
• drugs consumer
• recent application of transcranial direct stimulation
• psychiatric disease who lead the subject to a misunderstand of the study