Publications by authors named "R Mueri"
In patients with dementia, Behavioral and Psychological Symptoms of Dementia (BPSD) are frequent findings that accompany deficits caused by cognitive impairment and thus complicate diagnostics, therapy and care. BPSD are a burden both for affected individuals as well as care-givers, and represent a significant challenge for therapy of a patient population with high degree of multi-morbidity. The goal of this therapy-guideline issued by swiss professional associations is to present guidance regarding therapy of BPSD as attendant symptoms in dementia, based on evidence as well as clinical experience.
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- The study investigates the cognitive mechanisms behind personal neglect, particularly focusing on how individuals with right hemisphere brain lesions represent their bodies and nearby spaces.
- Researchers compared 22 patients with right hemisphere lesions (7 with personal neglect) and 13 healthy controls using tasks that involved identifying left and right hands and mirrors.
- Results showed that patients with personal neglect struggled more with identifying left-sided stimuli, indicating that poor body representation is a key factor in this condition, while other issues like space neglect or motor impairments did not significantly relate to personal neglect.
Pure alexia is an acquired reading disorder characterized by a disproportionate prolongation of reading time as a function of word length. Although the vast majority of cases reported in the literature show a right-sided visual defect, little is known about the contribution of this low-level visual impairment to their reading difficulties. The present study was aimed at investigating this issue by comparing eye movement patterns during text reading in six patients with pure alexia with those of six patients with hemianopic dyslexia showing similar right-sided visual field defects.
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- When sight-reading music, violinists exhibit eye-hand span, which refers to the gap between reading the notes and playing them, influenced by the score's complexity.
- The study found that more complex music resulted in lower anticipation of notes, longer eye fixation times, and more backward eye movements, while anticipation in time stayed consistent at about one second across different pieces.
- Ultimately, the results indicate that a musician's experience and the structural features of a musical piece both significantly impact their eye-hand span during performance.
Based on neurophysiological findings and a grid to score binocular visual field function, two hypotheses concerning the spatial distribution of fixations during visual search were tested and confirmed in healthy participants and patients with homonymous visual field defects. Both groups showed significant biases of fixations and viewing time towards the centre of the screen and the upper screen half. Patients displayed a third bias towards the side of their field defect, which represents oculomotor compensation.
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