Asymmetric Vergence Research Articles

Motor responses to conflicting asymmetrical vergence stimulus information.

The information contained in a single asymmetrical vergence stimulus is unambiguous, both in terms of direction and magnitude. Thus, the conjugate and disjunctive responses to this simple stimulus may not reveal all of the essential features of the control mechanisms responsible for these oculomotor responses. In this investigation, two opposing asymmetrical vergence stimuli, only one of which involved similarly shaped targets, were presented simultaneously at various retinal locations in an attempt to determine what information triggers these oculomotor responses in complex stimulus situations.