Why Does Lou Gehrig's Disease Cause Problems For Action Verbs But Not Nouns?

Patients with Amyotrophic lateral sclerosis (ALS), commonly known as Lou Gehrig's Disease, have difficulty with action verbs: Why action verbs and not regular verbs or nouns? According to some papers, the fact that ALS patients experience it isn't the actual severe motor deficits of the disease, the greater linguistic difficulty with verbs denoting action compared to nouns depends on the motor deficit. The motor system plays a role in the semantic encoding of action verbs? Real or spurious correlations? A new tested this hypothesis and their conclusion suggests a major role for the “executive function”. read more

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