For people ages 60-85
comfortably ambulatory healthy physical condition normal or corrected to normal visual auditory acuity fluency in spoken English Between 60-85 years old No neurological or psychiatric disorders No substance abuse Not taking anti-depressants Not taking anti-anxiety medication No history of seizures No color blindness No glaucoma No macular degeneration No amblyopia (lazy eye) No strabismus (cross eyed) Aneurysm clip(s) No Cardiac pacemaker No Implanted cardioverter defibrillator (ICD) No Electronic implant or device No Magnetically-activated implant or device No Neurostimulation system No Spinal cord stimulator No Internal electrodes or wires No Bone growth/bone fusion stimulator No Cochlear, otologic, or other ear implant No Insulin or other infusion pump No Implanted drug infusion device No type of prosthesis (eye, penile, etc.) No Heart valve prosthesis No Eyelid spring or wire No Artificial or prosthetic limb No Metallic stent, filter, or coil No Shunt (spinal or intraventricular) No Vascular access port and/or catheter No Radiation seeds or implants No Swan-Ganz or thermodilution catheter No Medication patch (Nicotine, Nitroglycerine) No metallic fragment or metallic foreign body in/on the body that can not be removed No Wire mesh implant No Tissue expander (e.g., breast) No Surgical staples, clips, or metallic sutures No Joint replacement (hip, knee, etc.) No Bone/joint pin, screw, nail, wire, plate, etc. No IUD, diaphragm, or pessary No Dentures or partial plates that can not be removed No Tattoo or permanent makeup No Body piercing jewelry No Claustrophobia