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TABLE 1. Characteristic Findings in Autism and in Mercury Poisoning

Autism Mercurism
Motor Stereotypies Ataxia, dysarthria
Vision No abnormality Constricted visual fields
Speech Delay, echolalia Dysarthria
Sensory Hyper-responsiveness Peripheral neuropathy
Psychiatric Socially aloof, insistence on sameness Toxic psychosis; in mild cases, nonspecific depression, anxiety
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