N F Sheahan
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Explore the profile of N F Sheahan including associated specialties, affiliations and a list of published articles.
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27
Citations
207
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Recent Articles
1.
Sheahan N, Dowling A, OReilly G, Malone J
Radiat Prot Dosimetry
. 2006 Feb;
117(1-3):288-90.
PMID: 16461504
This study reports on the development and evaluation of a protocol for testing DEXA systems, which can be incorporated into a routine medical physics/engineering service. Methodologies are reported for (1)...
2.
Bolger C, Bojanic S, Sheahan N, Coakley D, Malone J
J Gerontol A Biol Sci Med Sci
. 2001 May;
56(6):M386-90.
PMID: 11382800
Background: Ocular microtremor (OMT) is a high-frequency tremor of the eyes. It is present in all individuals and is related to brainstem activity. The OMT signal appears as an irregular...
3.
Fitzsimons M, Sheahan N, van der Putten W, Malone J
Physiol Meas
. 1999 Dec;
20(4):385-400.
PMID: 10593232
Evidence exists which supports the hypothesis that electrical stimulation of appropriate parameters can fulfil the fundamental requirements for an effective evoked potential taste stimulus. Nevertheless, it had previously been considered...
4.
Bolger C, Bojanic S, Sheahan N, Coakley D, Malone J
Vision Res
. 1999 May;
39(11):1911-5.
PMID: 10343779
Ocular microtremor (OMT) is a high frequency tremor of the eyes present during fixation and probably related to brainstem activity (Coakley, D. (1983). Minute eye movement and brain stem function....
5.
Bolger C, Bojanic S, Sheahan N, Coakley D, Malone J
J Neurol Neurosurg Psychiatry
. 1999 Apr;
66(4):528-31.
PMID: 10201430
Abnormalities in the oculomotor control mechanism of patients with idiopathic Parkinson's disease are well recognised. In this study the effect of Parkinson's disease on tonic output from oculomotor nuclei was...
6.
Bolger C, Bojanic S, Sheahan N, Coakley D, Malone J
J Neuroophthalmol
. 1999 Mar;
19(1):42-5.
PMID: 10098547
Objectives: Ocular microtremor (OMT) is a high frequency tremor of the eyes present in all individuals. Recent reports suggest that OMT may be a useful indicator of brainstem function. However,...
7.
Mac Mahon M, Sheahan N, Colgan M, Walsh B, Malone J, Coakley D
J Gerontol A Biol Sci Med Sci
. 1995 Jan;
50A(1):M56-8.
PMID: 7814790
Background: Pseudohypertension has frequently been reported in the elderly population, with the diastolic measurement being the most frequent source of error. There is no satisfactory noninvasive method of calculating the...
8.
Sheahan N, Coakley D, Bolger C, ONeill D, Fry G, Phillips J, et al.
Physiol Meas
. 1994 Feb;
15(1):101-6.
PMID: 8161957
This study presents a preliminary investigation of the sources of variance in the measurement of ocular microtremor frequency in a normal population. When the results from both experienced and relatively...
9.
Sheahan N, Coakley D, Hegarty F, Bolger C, Malone J
Med Biol Eng Comput
. 1993 May;
31(3):205-12.
PMID: 8412372
The frequency of ocular microtremor (OMT) is related to the functional status of the brain stem, and thus OMT may be useful in the diagnosis and management of brain stem...
10.
Sheahan N, Colgan M, MacMahon M, Walsh J, Coakley D, Malone J
Physiol Meas
. 1993 Feb;
14(1):1-6.
PMID: 8477228
A technique is described which enables ultrasonic imaging of the brachial artery whilst pressure is applied via a pressure cuff. This involves a new instrument--a sphygmomanometer, which uses water as...