Vestibular Stimulation Device

A method, comprising:

• inserting at least one electrode array into a vestibular system of a recipient, wherein the at least one electrode array is electrically connected to a stimulator unit so as to form at least part of a vestibular stimulation device;
• and
• after the at least one electrode array is inserted into the vestibular system, generating electrical stimulation at the stimulator unit;
• and
• applying the electrical stimulation to the vestibular system of the recipient with the least one electrode array,
• wherein the at least one electrode array is dimensioned such that residual vestibular function is retained when the at least one electrode array is inserted into the vestibular system.

A method, comprising:

• inserting at least one electrode array into a vestibular system of a recipient;
• after the at least one electrode array is inserted, applying, using the least one electrode array into, electrical stimulation to the vestibular system of the recipient;
• obtaining one or more neural responses of the vestibular system to the electrical stimulation;
• and
• analyzing the one or more neural responses of the vestibular system to the electrical stimulation.