This study explores the possible implications of the increase in perceived body size for
rehabilitation of motor functions. In a recent study we have tested if motor abilities of
patients with stroke improve wearing magnifying lenses, showing that a beneficial effect of
magnifying lenses can be observed in some patients. In the present study, we will identify 12
patients from this cohort who demonstrated an improvement greater than 10% in one or two
motor task when wearing magnifying glasses. These participants will be invited to take part
in a clinical study in which they will undergo a training phase: subjects will wear
magnifying lenses at home for 30 minutes daily for 14 days while completing a jigsaw puzzle;
a log will be kept to document participation. Participants' performance on different motor
tasks will be assessed before, immediately after and 1 month after the training session.
Standardized measures of motor performance will include the the Action Research Arm test and
the Rivermead Assessment of Somatosensory Performance (RASP). In addition, participants will
undergo grip strength, finger tapping tasks and a reaching and grasping task. We expect the
repeated use of magnifying lenses to generate an improvement of patients' performance across
tasks and this effect to be persistent in time.