ABSTRACT
Interest in the role of eye movements in the perception of ambiguous and reversible perspective figures has existed for over 150 years. One major concern has been whether a causal relationship between an eye movement and the alternation of the figure could be established such that an eye movement necessarily precedes an alternation of the stimulus percept or whether an eye movement is simply the result of such alternation. Eye movements appeared to be distributed on either side of the reversal response. The ability to alternate the perception of stabilized images is hypothesized to be a function of the generally small size of the stimuli, such that attention can be moved about the stimulus without the need for eye movements. Eye movements were discreetly monitored by a multiple-source corneal reflection technique that is insensitive to the effects of small head movements.
