Keyphrases
Parkinson's Disease
100%
Memory Performance
100%
Cognition Performance
100%
Parkinson Patients
100%
Motor Performance
100%
Acute Tryptophan Depletion
100%
Reaction Time Task
75%
Simple Reaction Time
75%
Motor Symptoms
50%
Serotonin
50%
Verbal Learning Task
50%
Unified Parkinson's Disease Rating Scale (UPDRS)
50%
Visual-verbal
50%
Clinically Significant
25%
Randomized Placebo-controlled Trial
25%
Healthy Volunteers
25%
Differential Effects
25%
Delayed Recall
25%
Reaction Time
25%
Control Subjects
25%
Disease-specific
25%
Psychiatric Symptoms
25%
Cognitive Symptoms
25%
Delayed Recognition
25%
Crossover Design
25%
Neuropsychiatric Diseases
25%
Non-motor Symptoms
25%
Serotonin Level
25%
Serotonergic
25%
Long Interval
25%
Early Parkinson's Disease
25%
Educational Status
25%
Short Intervals
25%
INIS
motors
100%
tryptophan
100%
performance
100%
nervous system diseases
100%
patients
50%
symptoms
40%
diseases
30%
serotonin
30%
fingers
20%
learning
20%
levels
10%
reduction
10%
control
10%
sex
10%
design
10%
exceptions
10%
Neuroscience
Tryptophan
100%
Parkinson's Disease
100%
Serotonin
30%
Serotonergic
10%
Placebo
10%
Non-Motor Symptoms
10%
Psychology
Rating Scale
100%
Motor Performance
100%