We will include left- and right-handed stroke patients, aged 18-90 years, with thromboembolic or hemorrhagic hemispheric lesions at least 3 months after the stroke. We will choose patients who initially had a severe motor paresis (below MRC grade 2), and subsequently recovered to the point that they have a residual motor deficit but can perform the required tasks. Moreover, only chronic stroke patients with moderate tactile deficits (defined by absolute touch thresholds below 4 N using von Frey filaments) who are able to differentiate the alignment of a grating dome (either orthogonal or parallel to the index finger) of at least 5 mm grooves that is applied on the fingertip will be included in the protocol.