Publications by authors named "Elizabeth M Dressler"
Article Synopsis
- Response activation and inhibition, key aspects of executive control, are impaired in individuals with Parkinson’s disease (PD), as confirmed by a study using magnetoencephalography.
- The research involved 18 participants with PD and 18 control participants performing a task that required either initiating movements or inhibiting cued movements, revealing similar reaction times across both groups.
- Significant abnormalities in oscillatory brain activity—particularly in the beta and alpha frequency bands—were found in various cortical areas (like motor cortex and prefrontal cortex), indicating delayed activation and suggestive compensatory mechanisms in those with PD.
Perceived and performance-based executive dysfunction in Parkinson's disease.
J Clin Exp Neuropsychol
February 2015
Executive dysfunction is common in early stage Parkinson's disease (PD). We evaluated the relationship between self- and informant-report measurement of real-world executive functions as well as performance-based neuropsychological measures in mildly cognitively impaired individuals with PD and healthy controls. The PD group reported more difficulty with initiation of complex tasks compared to caregiver ratings, and processing speed was a strong predictor of self-reported executive dysfunction for the PD group, followed by depression.
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