Birch, Anthony A, El-Bouri, Wahbi K 
ORCID: 0000-0002-2732-5927, Marchbanks, Robert J, Moore, Laura A, Campbell-Bell, Cherith M, Kipps, Christopher M and Bulters, Diederik O
(2022)
Pulsatile tympanic membrane displacement is associated with cognitive score in healthy subjects.
Cerebral Circulation - Cognition and Behavior, 3.
p. 100132.
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Abstract
To test the hypothesis that pulsing of intracranial pressure has an association with cognition, we measured cognitive score and pulsing of the tympanic membrane in 290 healthy subjects. This hypothesis was formed on the assumptions that large intracranial pressure pulses impair cognitive performance and tympanic membrane pulses reflect intracranial pressure pulses. 290 healthy subjects, aged 20-80 years, completed the Montreal Cognitive Assessment Test. Spontaneous tympanic membrane displacement during a heart cycle was measured from both ears in the sitting and supine position. We applied multiple linear regression, correcting for age, heart rate, and height, to test for an association between cognitive score and spontaneous tympanic membrane displacement. Significance was set at <i>P</i> < 0.0125 (Bonferroni correction.) A significant association was seen in the left supine position (<i>p</i> = 0.0076.) The association was not significant in the right ear supine (<i>p</i> = 0.28) or in either ear while sitting. Sub-domains of the cognitive assessment revealed that executive function, language and memory have been primarily responsible for this association. In conclusion, we have found that spontaneous pulses of the tympanic membrane are associated with cognitive performance and believe this reflects an association between cognitive performance and intracranial pressure pulses.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Intracranial pressure, Tympanic membrane displacement, MOCA, Cognitive assessment, Pulsatility |
| Divisions: | Faculty of Health and Life Sciences Faculty of Health and Life Sciences > Institute of Life Courses and Medical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 08 Apr 2022 10:27 |
| Last Modified: | 22 Sep 2023 04:37 |
| DOI: | 10.1016/j.cccb.2022.100132 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3152444 |
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