Oral Vasopressin Modulates Neural Responses to Looming Visual Stimuli: An Eye-tracking Study

Summary

The main aim of the present study is to investigate the effects of orally administered vasopressin (AVP) on the perception of time-to-collision of threatening and non-threatening stimuli by combining a validated looming fear eye-tracking paradigm with a randomized between-subject placebo-controlled pharmacological trial design.

Eligibility

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.

Conditions2

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