Figure 1.

HASRA. A, Exploded view of apparatus, showing each part of the assembly. B, Side view of apparatus, showing relative positions of reaching compartment, seed arm, camera, and RFID tag reader for identifying mice. C, Top-down view of front wall, stage motors and range of motion in which a seed could be presented (within black bounding box). D, Representative images taken from wall-facing camera showing a mouse performing each type of event that was classified. Miss, knock-down, and success represented types of attempts to retrieve the pellet using the hand. This perspective was used for scoring data on mouse reaching performance. Location of seed indicated with white arrow in each image.