The Effects of Losartan on Attention Control: An Eye-tracking Study

Inclusion Criteria: Healthy subjects who volunteer to participate and are able to fully understand and agree with this study by written informed consent. Normal or corrected-normal version Exclusion Criteria: * History of neuropsychiatric diseases. * History of cardiac disease, including arrhythmias, aortic stenosis, or congestive heart failure; history of syncope or unexplained loss of consciousness. * History of hepatic diseases, including cholestasis, biliary obstructive disease, or severe liver dysfunction. * History of renal diseases, including renal stones or renal failure. * History of hyponatremia(Serum sodium \<135mmol/L) or hyperkalemia (Serum potassium\>5.5mmol/L); history of diabetes mellitus or diabetes insipidus * Known hypersensitivity or allergic reaction to any medication or hormone; strong allergic reaction to food. * Infections such as COVID-19 or influenza, or unexplained fever. * Subjects with hypertension (BP ≥130/80mmHg) or hypotension (BP ≤ 90/60mmHg). * History of alcohol or drug abuse; smoker (≥ 10 cigarettes or ≥ 3 cigars or ≥ 3 pipes/day); smoker using e-cigarettes. * Blood donation (≤ 1 month prior to administration). * Take oral contraceptives or receive hormonal medications in the three months prior to the experiment. * Pregnant or breastfeeding.