Blink reflex: comparison of latency measurements in different human races

The blink reflex latencies and cephalometric indexes were analysed in 30 male volunteers from three different races, 10 white, 10 black, and 10 Oriental. Ages ranged from 15 to 59 years, height from 1,60 to 1,80 m, and weight from 60 to 80 kg. Blink reflexes were obtained after unilateral electric s...

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Main Authors: Paulo Andre Teixeira Kimaid, Luiz Antonio Lima Resende, Heloisa Amélia de Lima Castro, Fausto Bérzin, Amilton Antunes Barreira
Format: Article
Language:English
Published: Academia Brasileira de Neurologia (ABNEURO) 2002-09-01
Series:Arquivos de Neuro-Psiquiatria
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2002000400009&tlng=en
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author Paulo Andre Teixeira Kimaid
Luiz Antonio Lima Resende
Heloisa Amélia de Lima Castro
Fausto Bérzin
Amilton Antunes Barreira
author_facet Paulo Andre Teixeira Kimaid
Luiz Antonio Lima Resende
Heloisa Amélia de Lima Castro
Fausto Bérzin
Amilton Antunes Barreira
author_sort Paulo Andre Teixeira Kimaid
collection DOAJ
description The blink reflex latencies and cephalometric indexes were analysed in 30 male volunteers from three different races, 10 white, 10 black, and 10 Oriental. Ages ranged from 15 to 59 years, height from 1,60 to 1,80 m, and weight from 60 to 80 kg. Blink reflexes were obtained after unilateral electric stimulation of the supraorbital nerve for quantitative analysis of 3 responses, early ipsilateral (R1), late ipsilateral (R2i) and late contralateral (R2c), obtained from the orbicularis oculi muscle. Cephalometric indexes were calculated by multiplying the ratio between the longer transverse and the longer sagital head diameters by 100. The R1, R2i and R2c latencies were consistent with other published papers revealing no differences between the different racial groups. The mean of the cephalometric indexes of each group were consistent with respective racial characteristics. This study revealed that there are no differences between R1, R2i and R2c latencies in the 3 different studied races.
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spelling doaj.art-f9bfff45346249c8b977ba446791646a2022-12-21T17:22:05ZengAcademia Brasileira de Neurologia (ABNEURO)Arquivos de Neuro-Psiquiatria1678-42272002-09-01603A563565Blink reflex: comparison of latency measurements in different human racesPaulo Andre Teixeira Kimaid0Luiz Antonio Lima Resende1Heloisa Amélia de Lima Castro2Fausto Bérzin3Amilton Antunes Barreira4Universidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade de CampinasUniversidade de CampinasUniversidade de São PauloThe blink reflex latencies and cephalometric indexes were analysed in 30 male volunteers from three different races, 10 white, 10 black, and 10 Oriental. Ages ranged from 15 to 59 years, height from 1,60 to 1,80 m, and weight from 60 to 80 kg. Blink reflexes were obtained after unilateral electric stimulation of the supraorbital nerve for quantitative analysis of 3 responses, early ipsilateral (R1), late ipsilateral (R2i) and late contralateral (R2c), obtained from the orbicularis oculi muscle. Cephalometric indexes were calculated by multiplying the ratio between the longer transverse and the longer sagital head diameters by 100. The R1, R2i and R2c latencies were consistent with other published papers revealing no differences between the different racial groups. The mean of the cephalometric indexes of each group were consistent with respective racial characteristics. This study revealed that there are no differences between R1, R2i and R2c latencies in the 3 different studied races.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2002000400009&tlng=enblink reflexraces
spellingShingle Paulo Andre Teixeira Kimaid
Luiz Antonio Lima Resende
Heloisa Amélia de Lima Castro
Fausto Bérzin
Amilton Antunes Barreira
Blink reflex: comparison of latency measurements in different human races
Arquivos de Neuro-Psiquiatria
blink reflex
races
title Blink reflex: comparison of latency measurements in different human races
title_full Blink reflex: comparison of latency measurements in different human races
title_fullStr Blink reflex: comparison of latency measurements in different human races
title_full_unstemmed Blink reflex: comparison of latency measurements in different human races
title_short Blink reflex: comparison of latency measurements in different human races
title_sort blink reflex comparison of latency measurements in different human races
topic blink reflex
races
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2002000400009&tlng=en
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AT heloisaameliadelimacastro blinkreflexcomparisonoflatencymeasurementsindifferenthumanraces
AT faustoberzin blinkreflexcomparisonoflatencymeasurementsindifferenthumanraces
AT amiltonantunesbarreira blinkreflexcomparisonoflatencymeasurementsindifferenthumanraces