Water Oxygenation and Brain Activity

Inclusion Criteria:

• Men or women of any ethnic background;
• living in New York tri-state area;
• fluent in English;
• normal or corrected to normal vision and hearing;
• willing to complete all study procedures; and
• capable of giving written informed consent.

Exclusion Criteria:

• A history of gross brain abnormalities such as stroke, severe ventriculomegaly or severe periventricular white matter abnormalities;
• a history of serious psychiatric or neurological disorders, including psychosis or major depression, alcohol or drug abuse, brain injury, seizure disorder, brain tumor, etc.;
• taking psychoactive medications, including antipsychotics, anxiolytics and antidepressants, or cognitive enhancers such as cholinesterase inhibitors;
• presence of contraindications for MEG or MRI recording, including any of the following: cardiac pacemaker, intracranial clips, metal implants, or external clips within 10 mm of the head, metal in eyes, claustrophobia, obesity and/or any other reason leading to difficulty staying in the MEG or MRI for up to one hour.