Fig. 3

The Keys and the Purse Games. A patient playing the Keys Game with the instructions provided by the robot. Large inset: an illustration of the Purse Game, showing the keys, taken out of color-matched zipped purses, to be placed on the sensorized key hanger. Small inset: an example of instruction in either of these two games, where four colored keys should be placed on the key hanger; white circles denote empty spaces