autism PDD
Conditions
Interventions
None listed
Sponsors
Katholieke Universiteit Nijmegen
Eligibility
Age
2 Years to 99 Years
Inclusion criteria
Inclusion criteria: Participants with ASD should meet DSM-IV criteria for autistic disorder, Asperger disorder, or PDD NOS on the basis of both extensive clinical evaluations and a structured diagnostic interview (ADI-R). Participants with dyslexia should meet DSM-IV criteria for dyslexia. This latter group will be matched as closely as possible person-to-person with the patient group on age, sex, and IQ. Healthy volunteers with a negative history of neurological and psychiatric disorders as assessed using the General Health Questionnaire (GHQ). This group will also be matched as closely as possible person-to-person with both patient groups on age, sex, and IQ.
Exclusion criteria
Exclusion criteria: Participants will be excluded if they have: - sensory impairments - neurological impairments - experienced any neurological trauma - used neuroleptics
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Primary parameters: Experiment 1: Task transition, which can call for a task switch or a task resumption Experiment 2: The interval between the cue presentation and the first target in a run of trials, which can be long (900 ms) or short (300 ms) Experiment 3: The interval between the last response in a run of trials and the upcoming cue; this interval can be long (900 ms) or short (300 ms) For all experiments, reaction times and error rates were registered. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary parameters: For all experiments: Two tasks are used: a color matching and a shape matching task. Also, the sequence of trials in a run is one of the secondary parameters here: A run of trials consists of Trial 1,2,3,4 up to 8. Additional secondary parameters for Experiment 2 and 3: Task transition, which can call for a task switch or a task resumption | — |
Countries
Netherlands
Outcome results
None listed