To begin with, the experiment performed on striped skunks was to test the skunk's visual acuity, by using a two-alternative forced choice task with square wave gratings. In order to execute the experiment, the skunks were trained prior to the visual test to touch with their paws to grab a black ball at the end of the stick with in exchange for a food with reward. After the skunks can consistently touch the ball the experiment will start. In a twenty trial sessions stimuli were set up in a box according to a random and counterbalanced order. The box was held out of reach of the current subject. The target was placed on the mesh at the center of the box. To make sure that the choice is unbias. Next, the skunk touches the target with their paws, then the target was removed and the box was pushed against the mesh.…show more content… When the skunk made an incorrect choice, the experimenter would say no and no food was given to the skunk. Then after the stimuli were taken out of the box and replaced in their location for the next project. Each skunk or subject was tested each testing day and received from one to seven twenty trial sessions per day. The skunks had a set goal to perform at eighty percent correct on four consecutive sessions or ninety percent on two consecutive sessions.U f the skunks were not capable of passing the stimuli test within thirty sessions, then the correction trials were used. If the skunks were able to pass the criteria of the setup right and distant stripes. The next session the stripes were paired with a gray stimulus. When retested outdoors, skunks were presented with the smallest cycle they have previously passed. The results of the experiment all three skunks initially passed the goal for two inches and one inch but, failed the half inch
