Positron emission tomography (PET scan), single-photon emission CT scanning (SPECT) may show some deficits, but these findings are non specific to diagnose<unk>  spectrum disorder.
Autism other imaging findings
Attention-deficit hyperactivity disorder other imaging findings
Autism other diagnostic studies
Personality disorder other imaging findings
Autism causes
Asperger syndrome risk factors
Dementia other imaging findings
Fragile X syndrome risk factors