subjects with autism spectrum disorder and neurotypical controls MedDRA version: 12.1 Level: LLT Classification code 10063844 Term: Autism spectrum disorder
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: - age: 18 - 50 years - ASD-group only: diagnosed autism spectrum disorder (DSM-IV: 299.00, 299.80) - male - right-handed - non-smoker - German native-speaker - normal or corrected-to-normal vision - written informed-consent Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range
Exclusion criteria
Exclusion criteria: - somatic illness - endocrinological or psychoactive medication - controls only: current or past diagnosis of neurological or psychiatric disorder - ASD-group only: dominant psychiatric comorbidity (DSM-IV axis I / II) - on the day of behavioral testing: caffeinated beverages and alcohol; drinking or eating anything except water for two hours before testing - hypersensitivity towards the active substance or other ingredients (e.g. preservatives like parabens) - fMRI-group only: non-MRI-compatible conditions (e.g. metal in body) - mental retardation (IQ < 70) - speech development disorder
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: The overall aim of the proposed project is to investigate attentional processes in a social context and to modulate these processes by OXT. Based on the literature to date, it seems plausible that OXT modulates social cognitive processes such as the attention to emotional facial expressions differentially in ASD and neurotypical controls. Thus, the present study aims to investigate the modulatory role of OXT on attentional capture of social stimuli with varying emotional valence on the behavioral level in both typically developing adults as well as individuals with ASD. Participants will receive either OXT or a placebo in a randomized, double-blind group design. ;Secondary Objective: - Investigate whether OXT improves the attentional focus to social/emotional stimuli in the ASD group, but attenuates the attentional focus for aversive/negative social stimuli in neurotypical individuals as compared to positive social cues - Examine the neural basis of the expected behavioral effects using fMRI;Primary end point(s): - reaction time and saccadic patterns in a facial dot-probe paradigm (using high-speed remote eyetracking) - limbic activity in response to facial stimuli | — |
Countries
Germany