The TARDIS possesses telepathic circuits, although the Doctor prefers to pilot it manually.
Using the TARDIS telepathic circuits, the Doctor mentally summons the Third Doctor to assist with the technical aspects of the plan.
Uncle Alf suggested that Doc was anxious also to set up a new telepathic circuit, just in case.
While he activates the ship's telepathic circuits to see if the Sisterhood are still around, he sends Lucie back to Straxus with some water.
He cannot reach the controls of the telepathic circuits as they are underneath the machine.
He put his right hand to Jim's temple, completing the telepathic, mystical circuit linking him with his friend.
The Doctor returns to the forest, but he can't sense the TARDIS at all, due to the telepathic circuits being broken.
He staggers over to the console, dematerialising the ship then pressing his palms to the telepathic circuits.
However, Susan used the telepathic circuits to overpower the Master, and kicked him out of his TARDIS.
The Doctor linked the two women through the TARDIS's telepathic circuits, so that Kadiatu gained Benny's strength to live.