A dual-chair assembly is disclosed having a practitioner chair rotatably coupled to a base by an extension arm, the base fixedly attached to a ground surface, and disposed a separation distance from the practitioner chair. The dual-chair assembly also includes a subject chair coupled to and supported by the base. A practitioner control is communicatively coupled to practitioner chair actuators, the practitioner control including a user input interface operably configured for receiving a practitioner input, and, as a result of the practitioner input, causing the practitioner chair actuators to perform at least one of rotating the practitioner chair about the subject chair adjusting an elevation of the practitioner chair and rotating at least one of a roll angle, a pitch angle, and a yaw angle of the practitioner chair.