Fig. 1: A wearable logger of nasal airflow.
From: Discriminating Parkinson’s disease patients from healthy controls using nasal respiratory airflow
a The Nasal Holter device is pasted onto the nape of a participant’s neck. b The stereo nasal cannula communicating a pressure wave from each nostril separately. Onboard electronics convert the pressure signal into flow. The yellow-red highlights serve to illustrate the general ___location of the pre-Bötzinger complex (a) and the anterior olfactory nucleus (b), two brain areas implicated in early PD and in the control of respiratory timing. By illustration, we measure nasal airflow to gain information on brain function. c, d Examples of the nasal respiratory trace obtained from (c) a healthy control and (d) a PD patient. e Accelerometer data from a single participant demonstrating the data-derived separation between wake and sleep times. Colors reflect spatial axes, X-axis in orange, Y-axis in green and Z-axis in blue.
