The flow of the cerebrospinal fluid that is present between the scalp and the skull helps in the diagnoses of neurodegenerative and age-related diseases. This is a non-invasive method, which is also used for the diagnoses for cardiovascular disease, says a study by a research team at Lancaster University (UK) and Medical University of Gdansk (Poland).
A device for non-invasive recordings of this translucent fluid has been developed by researchers at the Technical University of Gdansk (Poland), and recordings on healthy subjects were made at the Medical University of Gdansk (Poland) and the University of Regina (Canada).
Using methods developed by physicists at Lancaster it has been shown that the circulation throughout the brain of this fluid is highly fluctuating, and that these fluctuations are slow but interconnected by the rhythms of breathing and the heart rate.
Professor Aneta Stefanovska from Lancaster University, who has been studying the physics of biological oscillations for over 20 years, said: "Combining the technique to noninvasively record the fluctuation corresponding to cerebrospinal fluid and our sophisticated methods to analyse oscillations which are not clock-like but rather vary in time around their natural values, we have come to an interesting and non-invasive method that can be used to study ageing and changes due to various neurodegenerative .