Schumann A, Kralisch C, Bär KJ. Spectral decomposition of pupillary unrest using wavelet entropy.
ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2016;
2015:6154-7. [PMID:
26737697 DOI:
10.1109/embc.2015.7319797]
[Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Respiratory and cardiovascular rhythms were discovered in the temporal fluctuations of pupil sizes. The mechanism is physiologically explainable but the potential clinical importance of pupillary unrest has not been studied extensively in the past. Here we analyzed the pupillograms of 29 healthy controls on different time scales and correlated the results to established indices of cardiovascular and cardiorespiratory autonomic function. We discovered a clear lateralization of pupil unrest dependencies. Correlation to vagal heart rate regulation and baroreflex sensitivity indicates the significance of the left pupil's fluctuations evaluating the status of the autonomic nervous system.
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