Why does Lou Gehrig's disease cause problems for action verbs but not nouns? (Science 2.0)

Date: 
13 November, 2014
Credit: 
Science 2.0
Category: 
Speech-Language Pathology
Communication Health Assistants
Students
Public

Patients with Amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease, tend to have difficulty understanding and using verbs that denote actions. Scientists have hypothesized that this is due to damage to the motor system, but a recent study by Liuba Papeo, neuroscientist at the CIMeC in Trento, and her team have found that this is not the case. Their research suggests that there is no causal relationship between an individual’s motor deficits and difficulty with verbs. Read the news story or study in Cortex.