{'fraction_non_alphanumeric': 0.029595015576323987, 'fraction_numerical': 0.0, 'mean_word_length': 5.913978494623656, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Associations between obstructive sleep apnea, Alzheimer’s disease pathology, and objective daytime sleepiness measured by the psychomotor vigilance task in cognitively unimpaired adults

Daytime sleepiness is common among individuals with obstructive sleep apnea (OSA), and has been reported among individuals with Alzheimer’s Disease (AD) pathology. However, objective measures of decreased alertness have not been examined in the context of AD. Here, we examined performance on the psychomotor vigilance task (PVT) in relation to AD pathology as indexed by AD biomarkers in cerebrospinal fluid (CSF), among individuals with and without OSA.