"Progress is good, and the patient seems to have made a full recovery, with no ill effects that we are aware of. The patient is able to move a mouse around the screen by just thinking," Musk told X users in Spaces on Monday night.  

Musk said Neuralink is currently focusing on maximizing the number of mouse clicks by the patient. 

Neuralink implanted the first brain chip into a human in January, following approval for human trials in September. The potentially life-transforming technology could help patients with quadriplegia caused by cervical spinal cord injury or amyotrophic lateral sclerosis. 

Neuralink has called the trial its "PRIME Study," short for "Precise Robotically Implanted Brain-Computer Interface," which aims to study the safety of its chip and surgical robot and test the device's functionality. 

The brain chip "grants people the ability to control a computer cursor or keyboard using their thoughts alone," the company wrote in September.