This study explores how a technique called *transcutaneous vagus nerve stimulation* (**tVNS**) helps older adults learn new motor skills. Motor skills involve using your muscles to perform tasks like writing or playing an instrument. *tVNS* is when tiny electrical pulses are applied to the outer ear to stimulate the vagus nerve, which may help improve learning. Participants will be divided into two groups: one will receive actual *tVNS* and the other will receive a *sham* or fake stimulation. The study involves four lab visits where participants practice controlling finger movements. The goal is to see if *tVNS* makes learning these movements easier. This study is only for right-handed people aged 65-84 who are physically and mentally healthy.

• Participants will attend 4 lab sessions.
• Participants will either receive real or fake *tVNS* during training.
• No stimulation will occur during testing, only during training.