Healthy
Conditions
Brief summary
The main objective of this project is to study whether intranasal oxytocin (OT) affects how young adults perceive and attend to infant and adult faces. Based on existing research the investigators predict that oxytocin will facilitate the allocation of attentional resources on infant faces (compared to adult faces). The investigators also predict that oxytocin will enhance the activity of reward neural-networks associated with the perception of infant faces. The behavioral effects of OT (visual attention and face recognition) will be measured with eye-tracking while participants look at photographs of adult and infant faces. Neurological effects (the activity of emotion and reward networks) will be measured with functional Magnetic Resonance Imaging (fMRI) while participants look at infant faces on a computer screen.
Interventions
Dosage and details described in arm.
Dosage and details described in arm.
Sponsors
Study design
Eligibility
Inclusion criteria
* Healthy Volunteers * Norma or corrected to norma vision * Participants are non parents * Able to provide written informed consent and to comply with all study procedures
Exclusion criteria
* Dementia or severe cognitive disorders * Endocrine disease or malignancy * Nasal obstruction or upper-respiratory tract infection * Current or previous psychiatric disorder * Current or previous use of psychoactive drugs * Alcoholism or substance abuse * History of seizures * Neurological Disorder * Previous head trauma * Hypertension * Cardiovascular Disease * Claustrophobia * ferrous metal in any part of the body
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Functional Magnetic Resonance Imaging (fMRI) Data | 45 minutes after OT manipulation | The effect of OT will be assessed by determining changes in brain activation between treatment and placebo groups. |
| Eye movements data | 45 minutes after OT manipulation | The effect of OT will be assessed by determining changes in eye movements between treatment and placebo groups. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Implicit Attitudes toward infants | 45 minutes after OT manipulation | Implicit attitudes toward infants as measured by the Implicit Association Test |
| Theory of mind | 45 minutes after OT manipulation | Theory of mind as measured by the Reading the mind in the eyes test |