3.The nasal resonance acoustics of school-age children with spastic cerebral palsy
Qin WAN ; Xiaohui GAO ; Qing ZHANG
Chinese Journal of Physical Medicine and Rehabilitation 2013;35(11):843-846
Objective To characterize the nasal resonance of children with spastic cerebral palsy by comparing it with that of ordinary school-age children.Methods The mean nasalance scores (MNSs) of 90 normal school-age children and 62 school-age children with spastic cerebral palsy were measured and compared.Results (1) Age has significant effects on the MNS of/a/,/i/and/m/ in ordinary children,but has almost no effect on the MNS of/u/.The MNS of/a/,/i/,/u/ and/m/ in children with spastic cerebral palsy does not change with age.(2) Sex only has a significant relationship with the MNS of/i/ in ordinary children,but does not significantly predict the other MNSs.(3) The MNS of/a/ of children with spastic cerebral palsy is significantly lower than that of ordinary children,and their MNS of/i/ and /u/ is significantly greater than those of ordinary children.Conclusions The MNS of /a/,/i/and /u/first increases and then decreases with age in ordinary children,while the MNS of/m/ increases gradually.Children with spastic cerebral palsy did not show the same trends and demonstrated a state of retardation of nasal resonance.Children with spastic cerebral palsy are more likely to display hypernasality than ordinary children.
5.Change of GABA immunoreactivity in area tempestas of epileptic sensitive rats.
Xin-Lu DU ; Jie ZHAO ; Wan-Qin ZHANG
Chinese Journal of Applied Physiology 2002;18(2):207-208
Animals
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Epilepsy
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immunology
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metabolism
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Hippocampus
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metabolism
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Male
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Rats
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Rats, Sprague-Dawley
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gamma-Aminobutyric Acid
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immunology
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metabolism
6.Acoustic Characteristics Study on Tone/i/with ContinuousIy VariabIe Pitch and Loundness Made by NormaI AduIts
Qing ZHANG ; Xiao LIU ; Zhaoming HUANG ; Qin WAN
Journal of Audiology and Speech Pathology 2014;(6):592-596
Objective By analyzing the graph features of fundamental frequency at different rates of/i/with continuously variable pitch and loundness made by normal adults,we could explore that the rate and gender have some impact on the graph to lay the foundation of regulating the clinical maximum counting ability.Methods Nor-mal adults of 51 (25 males,26 females were included).After each deep breathing,the subjects respectively took sustained speech/i/ with continuously variable pitch and lounolness twice at different rates of fast,medium and slow speed.Some parameters were measured byDoctor Speechat different rates of the tone/i/:Total time(T), Mean time standard deviation (MTSD),Mean wave crest (MWC),Mean wave trough (MWT),Mean frequency range (MFR),Mean frequency range standard deviation (MFRSD),comparing the speed having some effect on those above parameters with gender.ResuIts ①With the increasing rate of speech,the tone/i/of T (P<0.001), MFR (P<0.01)and MTSD (P<0.001)were significantly decreased,MWT significantly increased (P<0.001), While the MWC and MFRSD did not change significantly (P>0.05 ).②The tone /i/ of T (P>0.05 )were not effected by gender,female's MWT (P<0.001),MWC (P<0.001),MFR (P<0.001),MFRSD (P<0.01)were obviously higher than male's,while female's MTSD were significantly larger than male's (P<0.01).ConcIusion We should consider the impact of rate of speech and gender in clinical tests and values of MCA.The maximum counting capacity can be respectively tested at three different rates of speech for each subject,but only are the tone/i/of fun-damental frequency graphs with MWT,MWC,MFR,and MFRSD in normal range with corresponding speed and gender,can we get the value or can the value be valid.
7.Research on control system of brain-computer interface based on the alpha waves in EEG
Qian ZHANG ; Zhen WANG ; Qi QIN ; Baikun WAN
Chinese Medical Equipment Journal 1993;0(06):-
A system design of brain-computer interface based on the alpha waves in human electroencephalography(EEG) is presented in this paper.With the effects on the alpha wave amplitudes of human eye's open and close involved in,the selection control of four direction targets can be performed on a computer screen.The system speed and accuracy rate are investigated through the experiments involving 5 subjects.It is shown that the system is easy to operate and needs no complex learning and biofeedback training.The studying results provide a good technical foundation for the development of BCI control panel and the realization of the system integration.It has the potential application for clinical engineering and is valuable for further research.
8.Research on selective vascular edge detection in coronary angiogram
Zhen WANG ; Qian ZHANG ; Qi QIN ; Baikun WAN
Chinese Medical Equipment Journal 2004;0(07):-
A new method is developed to detect vascular edge-line in coronary angiograms.It firstly searches the path through vessel segment of interest,then detects vascular edges along profiles perpendicular to the path.The experiments demonstrate that the method performs well in coronary angiograms with less nearby or overlapping structures and branching vessels.
9.The Validity of New Material for Nasalance Evaluation and the Characteristics of Nasalance Scores in Children
Hakyung KIM ; Fenfen HUI ; Qin WAN ; Yiwen ZHANG ; Zhaoming HUANG
Journal of Audiology and Speech Pathology 2017;25(5):460-464
Objective To study the validity of a new material, to verify the influence of gender and age differences on normal school children, and give advice to establishing the norms of mean nasalance for normal school children.Methods The mean nasalance of 190 school children in Shanghai was obtained by reading the new, old material and the vowel /a/,/o/,/e/,/i/,/u/, and /ü/, the mean nasalance was analyzed for the standard deviations.The gender and age score differences were compared.Results The new material was more stable than the old.In the test of /i/ and/ü/and the nasal material, the girls'' MNS was higher than the boys''.In testing the vowels /a/,/o/,/e/,/i/,/u/, and /ü/and the new material, there were differences in different ages.Conclusion The validity of new material is more stable than the old.The MNS of the normal children in Shanghai show that it is higher for the girls than the boys, and also higher for the older children than for the younger.
10.A comparative study of the speech respiratory characteristics of 7-15 years old ordinary children and children with spastic cerebral palsy
Qin WAN ; Jinxiu HU ; Qing ZHANG ; Zhaoming HUANG ; Weijun SUN
Chinese Journal of Physical Medicine and Rehabilitation 2013;35(7):542-546
Objective To explore the speech respiratory characteristics of 7-15 years old children with spastic cerebral palsy and the differences between ordinary children and children with cerebral palsy.Methods The maximum phonation time (MPT) and maximum counting ability (MCA) of 90 ordinary children and 58 children with cerebral palsy aged 7-15 years were measured and a comparison between the 2 groups were conducted.Results (1) Age has significant effects on MPT and MCA of the ordinary children (P <0.05).The MPT and MCA of the ordinary children at the age of 7 ~9 years and 10 ~ 12 years are lower than the ones at the age of 13 ~ 15 years.Age has almost no effects on MPT and MCA of children with cerebral palsy(P >0.05) ; (2)Sex has no significant effects on MPT and MCA of ordinary children and children with cerebral palsy (P >0.05) ; (3) The MPT and MCA of children with cerebral palsy are significantly lower than those of ordinary children (P <0.05).Conclusions The MPT and MCA of ordinary children are increased with the growth of age,especially after the age of 13 years,but the children with spastic cerebral palsy do not show that kind of trend and demonstrate a state of retardation of speech respiratory function.Compared with ordinary children,the children with spastic cerebral palsy are easier to suffer from insufficient respiratory support and poor respiratory-phonatory coordination.