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To examine whether multiple doses of oxytocin have different effects on behavior and neural indices in males with high or low trait anxiety.
In the present study, healthy male subjects' trait anxiety levels will be assessed by the sub-trait inventory of the State-Trait Anxiety Inventory (STAI). According to subjects' trait anxiety scores, they will be divided into high or low anxiety experimental groups.
Next, experiments will investigate the acute effect (single dose) and chronic effect (3 doses or 5 doses) of oxytocin on brain functional connectivity during resting-state and brain activation in response to watching emotional stimuli using functional magnetic resonance imaging (fMRI). Also the brain structure data (T1 and diffusion tensor imaging, DTI) of subjects will be collected. After finishing the scanning tasks, subjects will be required to rate the emotional valence, intensity and arousal of the pictures shown in the scanner.
During the course of the study subjects will complete a number of questionnaires: Empathy Quotient (EQ), Cheek and Buss Shyness scale (CBSS),Interpersonal Reactivity Index (IRI),Childhood Trauma Questionnaire (CTQ),Beck depression inventory (BDI), State-Trait Anxiety Inventory (STAI), Autism Spectrum Quotient (ASQ), Liebowitz Social Anxiety Scale (LSAS),Positive and Negative Affect Schedule (PANAS),d2 attention test, and the Visual Analogue Scale for anxiety.
Oxytocin nasal spray, Placebo nasal spray
school of life science and technology, University of Electronic Science and Technology of China
University of Electronic Science and Technology of China
Published on BioPortfolio: 2017-03-21T21:38:21-0400
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