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Actigraphy and polysomnography (PSG) are two prominent methods for measuring sleep patterns, particularly in patients with bipolar disorder. Each method has its strengths and limitations, making them suitable for different contexts in sleep research and clinical practice. In this article, we are going to explain why Mindpax Miu.me relies on actigraphy data, rather than polysomnography.<\/b><\/p>\n
Bipolar disorder is highly influenced by sleep patterns, as disruptions in circadian rhythms can trigger mood episodes. Sleep deprivation often precedes manic episodes, while excessive sleep can accompany depressive phases, indicating a direct relationship between sleep and mood regulation in these individuals. The Rest-Activity Regime (RAR) serves as an objective marker for monitoring this connection, as it quantifies activity levels and rest periods over time using wearable or digital devices. By capturing fluctuations in daily patterns, RAR provides insights into circadian stability or disturbances, helping clinicians detect early signs of mood shifts and tailor interventions to stabilize sleep-wake cycles, thereby improving symptom management.<\/span><\/p>\n <\/span><\/p>\n – <\/span>Polysomnography<\/b> (PSG): PSG is considered the “gold standard” for sleep measurement. It involves comprehensive monitoring of physiological functions during sleep, including brain activity (EEG), eye movements (EOG), and muscle activity (EMG). This method is typically conducted in a sleep laboratory, which can be costly and burdensome for patients due to the need for overnight stays and the complexity of the setup.<\/span><\/p>\n – <\/span>Actigraphy<\/b>: Actigraphy uses a wrist-worn device that records movement over extended periods, providing a continuous record of activity levels. This method is less invasive and allows for naturalistic monitoring in the patient’s home environment. Actigraphy primarily infers sleep based on periods of inactivity, making it more convenient for long-term studies.<\/span><\/p>\n <\/span><\/p>\n Research shows that actigraphy produces results comparable to those obtained from PSG. A study comparing both methods found high concordance (up to 90%) in estimating key sleep parameters such as total sleep time, sleep efficiency, and wake after sleep onset [1][2].\u00a0<\/span><\/p>\n Actigraphy tends to yield lower estimates of sleep latency compared to PSG. This discrepancy may arise because actigraphy cannot detect all physiological aspects of sleep that PSG measures[4]. Additionally, while actigraphy is effective in assessing general sleep patterns, it may misclassify periods of low activity as sleep if the device is not worn properly or if the patient is inactive but awake.<\/span><\/p>\n <\/span><\/p>\n Actigraphy offers several advantages over polysomnography (PSG) for measuring sleep patterns in patients with bipolar disorder. Here are the main benefits:<\/span><\/p>\n In summary, actigraphy presents a practical, cost-effective, and patient-friendly alternative to polysomnography for monitoring sleep patterns in individuals with bipolar disorder. Its ability to provide continuous, real-world data while maintaining high validity makes it an essential tool for both clinical practice and research in understanding the relationship between sleep disturbances and mood regulation in this population.<\/span><\/p>\n Sources<\/span><\/p>\n [1] <\/span>Kaplan, K. A., Talbot, L. S., Gruber, J., & Harvey, A. G. (2012). Evaluating sleep in bipolar disorder: comparison between actigraphy, polysomnography, and sleep diary. <\/span>Bipolar Disorders<\/span><\/i>, <\/span>14<\/span><\/i>(8), 870\u2013879. https:\/\/doi.org\/10.1111\/bdi.12021<\/span><\/p>\n [2] Actigraphy In Psychiatry – Mindpax https:\/\/mindpax.me\/en\/actigraphy-in-psychiatry\/<\/span><\/p>\n [3] <\/span>Smith, M. T., McCrae, C. S., Cheung, J., Martin, J. L., Harrod, C. G., Heald, J. L., & Carden, K. A. (2018). Use of Actigraphy for the Evaluation of Sleep Disorders and Circadian Rhythm Sleep-Wake Disorders: An American Academy of Sleep Medicine Systematic Review, Meta-Analysis, and GRADE Assessment. <\/span>Journal of Clinical Sleep Medicine<\/span><\/i>, <\/span>14<\/span><\/i>(07), 1209\u20131230. https:\/\/doi.org\/10.5664\/jcsm.7228<\/span><\/p>\n [4] <\/span>Lehrer, H. M., Yao, Z., Krafty, R. T., Evans, M. A., Buysse, D. J., Kravitz, H. M., Matthews, K. A., Gold, E. B., Harlow, S. D., Samuelsson, L. B., & Hall, M. H. (2022). Comparing polysomnography, actigraphy, and sleep diary in the home environment: The Study of Women\u2019s Health Across the Nation (SWAN) Sleep Study. <\/span>SLEEP Advances<\/span><\/i>, <\/span>3<\/span><\/i>(1). https:\/\/doi.org\/10.1093\/sleepadvances\/zpac001<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":" Actigraphy and polysomnography (PSG) are two prominent methods for measuring sleep patterns, particularly in patients with bipolar disorder. Each method has its strengths and limitations, making them suitable for different contexts in sleep research and clinical practice. In this article, we are going to explain why Mindpax Miu.me relies on actigraphy data, rather than polysomnography. […]<\/p>\n","protected":false},"author":1,"featured_media":1064,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[35],"tags":[],"post_folder":[],"class_list":["post-1063","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-patients"],"yoast_head":"\nComparison of methods to track sleep patterns and quality<\/span><\/h2>\n
Does actigraphy miss relevant sleep information for tracking BD compared to PSG? Nope!<\/span><\/h2>\n
Advantages of actigraphic wearable devices<\/span><\/h2>\n
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