IRCT20210827052301N1 IRCT 2021-12-11 Tarbiat Modares University Evaluation of localization ability of stroke patients during synchronization of extracranial electrical stimulation and mechanical stimulation of fingers. Evaluation of localization ability of stroke patients during synchronization of extracranial electrical stimulation and mechanical stimulation of fingers. 2021-12-11 anticipated 15 Complete https://irct.ir/trial/58377 interventional Randomization: N/A, Blinding: Single blinded, Placebo: Not used, Assignment: Factorial, Purpose: Treatment, Blinding description: Participants are completely blinded to the type of electrical stimulation and are unaware of the location of tactile stimulation or the type of electrical stimulation. To blind the participant, his hand is placed under a table so that he cannot see the location of tactile stimulation. N/A stroke. Intervention 1: Intervention group 1: In this group, both mechanical and electrical stimulation of the tDCS type will be applied to the primary somatosensory cortex of the patient's brain. Intervention 2: Intervention group 2: In this group, both mechanical and electrical stimulation of tDCS_sham type will be applied to the primary somatosensory cortex of the patient's brain. Intervention 3: Intervention group 3: In this group, both mechanical stimulation and electrical stimulation of tDCS type will be applied to the primary somatosensory cortex of the patient's brain, this case is similar to the previous case, except that each time mechanical stimulation is applied, electrical stimulation will be applied and electrical stimulation will be interrupted when mechanical stimulation is stopped. In other words, electrical stimulation will be synchronized with mechanical stimulation, which we call tDSC-sync. Intervention 4: Intervention group 4: In this group, only mechanical (tactile) stimulation will be applied and no electrical stimulation will be applied. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is We don't have a specific plan for publication.