This study aims to determine whether levodopa is effective in boosting learning and memory in healthy subjects and patients with dementia or Mild Cognitive Impairment. We also examine in healthy subjects using functional magnetic resonance imaging which brain regions mediate improved learning after levodopa administration.
Prior work of our group shows that the dopamine precursor levodopa markedly improves word learning success in healthy subjects. In this randomized, placebo-controlled, double-blind trial, we probe whether administration of levodopa improves learning performance as compared to placebo administration on neuropsychological tests and in an associative learning paradigm. We postulate that levodopa improves learning success and memory performance in healthy subjects, while the effect in patients with dementia or Mild Cognitive Impairment might depend on other factors, including severity of memory impairment.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
120
University of Muenster, Department of Neurology
Münster, North Rhine-Westphalia, Germany
RECRUITINGCognitive performance assessed by neuropsychological tests and learning paradigms under placebo and levodopa in healthy subjects and patients with dementia or Mild Cognitive Impairment.
Brain activity pattern during learning under levodopa as compared to placebo in healthy subjects.
Long-term stability of learning performance after 1 month in healthy subjects.
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