In Order to Specifically Identify If Electrical Stimulation of the Superior

Multiple Choice

In order to specifically identify if electrical stimulation of the superior colliculus could improve covert attention, all of the following had to be achieved in the experimental setup, except.

A) the stimulus was below the threshold necessary to induce an eye saccade
B) the monkeys' eyes needed to stay on the fixation point
C) the movement of the dots in the periphery had to be less than 10% in the same direction
D) all other stimuli, such as sounds, had to be kept to a minimum and constant
E) the monkey's had to be awake