Sirs: Ocular motor apraxia (OMA) is characterized by the loss of voluntary saccade control but the simultaneous preservation of saccades of the optokinetic and the vestibulo-ocular reflex (VOR) [1, 4, 6]. While the suitability of the term is still being debated [6, 10], it is not yet clear which of the conceiv- able compensation strategies adult patients with OMA use to elicit saccades. Saccades can be initiated in three possible ways: by using the vestibulo-ocular reflex (VOR) , signals of voluntary head com- mands , or blinks . We tested for the first time the competing hypotheses in two adult patients with OMA to elucidate the mecha- nism that helps to restore the saccadic behaviour.
Research Areas and Centers
- Academic Focus: Center for Brain, Behavior and Metabolism (CBBM)