<prompt> All of the following statements are TRUE about second generation antihistaminic agents EXCEPT :These do not impair psychomotor performanceThese possess high antimotion sickness activityThese lack anticholinergic actionsThese may possess additional antiallergic mechanisms  <response>: Anti-motion sickness activity is related to the anticholinergic property. This property is exhibited by first-generation compounds whereas second-generation antihistaminics lack this potential. 