Publications by authors named "Lena Stock"
Article Synopsis
- This study looked at how eye movements, called saccades, are affected in people with Parkinson's disease (PD) compared to healthy people.
- Researchers studied 61 people with PD and 25 healthy controls using eye-tracking and cognitive tests to find different patterns in their saccade performance.
- They discovered three groups with different types of eye movement issues connected to cognitive problems, suggesting that there are at least two opposite patterns of eye movement changes in PD that might explain confusing results from earlier studies.
The antisaccade task is an established eye-tracking paradigm to explore response inhibition. While many studies showed that antisaccade performance is impaired in Parkinson's disease (PD), the effect of dopaminergic medication is still an area of debate. According to the dopamine overdose hypothesis, intrinsic basal dopamine levels in ventral parts of the striatum determine whether levodopa intake has beneficial or detrimental effects on dopamine-dependent cognitive tasks.
View Article and Find Full Text PDFThe usefulness of eye-tracking tasks as potential biomarkers for motor or cognitive disease burden in Parkinson's disease (PD) has been subject of debate for many years. Several studies suggest that the performance in the antisaccade task may be altered in patients with PD and associated with motor disease severity or executive dysfunction. In this meta-analysis, random effects models were used to synthesize the existing evidence on antisaccade error rates and latency in PD.
View Article and Find Full Text PDFPatients with Parkinson's disease (PD) show eye movement abnormalities and frequently complain about difficulties in reading. So far, it is unclear whether basal ganglia dysfunction or cognitive impairment has a greater impact on eye movements during reading. To analyze eye movement behavior during a natural reading task with respect to cognitive state and dopaminergic therapy in PD and healthy controls.
View Article and Find Full Text PDFArticle Synopsis
- Recognizing emotions on people's faces is important for socializing, but people with Parkinson's disease often have trouble doing this because of issues with their eyesight and thinking skills.
- The study looked at how 24 Parkinson’s patients and 12 healthy people used their eyes to identify emotions in faces, like happiness or anger.
- It found that patients with mild cognitive issues struggled to recognize emotions, especially anger, and looked at faces differently than healthy people, which may explain their difficulties.