to investigate whether oxytocin alter attentional bias towards emotional expression faces in individuals with high and low autistic traits, and the brain mechanism of this effect
In the present study, investigator plan to use a double-blind, between-subject placebo controlled design.Firstly, all healthy male subjects' autistic trait levels will be assessed by the Autism Spectrum Quotient (ASQ) and only subjects with higher or lower ASQ score will be recruited in the next experiment and divided into high and low subgroup. Then, subjects are randomly assigned to receive either intranasal administration of oxytocin (24 IU) or placebo. 45 min later, subject need to complete an attentional bias task named rapid serial visual presentation (RSVP) task in fMRI scanner.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Enrollment
120
screen subjects with low ASQ score
screen subjects with high ASQ score
intranasal administration of oxytocin (24 IU)
China, Sichuan
Chengdu, Sichuan, China
RECRUITINGattentional bias toward emotional expression faces
attentional bias was measured by the accuracy of each emotional faces in the RSVP task
Time frame: 1 hour
brain activity during RSVP task
brain activity was measured by the fMRI scanner
Time frame: 1 hour
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intranasal administration of placebo (24 IU)