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

University of Electronic Science and Technology of China

Status: Enrolling

Conditions: Healthy

Treatments: Drug: Vasopressin; Drug: Placebo

Study type: Interventional

Funder types: Other

Identifiers

NCT06329037

BAM_lab_eye-tracking_01

Details and patient eligibility

About

The main aim of the present study is to investigate the effects of orally administered vasopressin (AVP) on bottom-up and top-down attentional control to socio-emotional stimuli by combining a validated saccade/antisaccade eye-tracking paradigm with a randomized between-subject placebo-controlled pharmacological trial design.

Full description

Animal models and initial findings in humans suggest a role of the AVP signaling system in socio-emotional processes. Initial studies have employed intranasal AVP during a socio-emotional eye tracking paradigm and reported effects on both, top-down as well as bottom-up control. Within this context the present study aims to validate the effects of orally administered AVP on top-down and bottom-up attentional control towards socio-affective stimuli. To this end, healthy individuals will undergo a double-blind, between-subjects, placebo-controlled pharmaco-eye-tracking experiment and receive a single oral dose of vasopressin (20 IU) or placebo before performing a saccade/anti-saccade task 45 minutes after administration. The task paradigm will encompass social (happy, angry, fearful, sad and neutral faces) and non-social (oval) stimuli to examine the social and emotion-specific effects of oral vasopressin.

Enrollment: 80 estimated patients

Sex: All

Ages: 18 to 40 years old

Volunteers: Accepts Healthy Volunteers

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.

Trial design

Primary purpose: Basic Science

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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80 participants in 2 patient groups, including a placebo group

Vasopressin group

Experimental group

Description:

Vasopressin (20IU)

Treatment:

Drug: Vasopressin

Placebo group

Placebo Comparator group

Description:

Placebo

Treatment:

Drug: Placebo