The Effects of Cigarette Smoking on Voice-Fundamental Frequency

1987 ◽  
Vol 97 (4) ◽  
pp. 376-380 ◽  
Author(s):  
Christopher H. Murphy ◽  
Philip C. Doyle
Keyword(s):  
Cigarette Smoking ◽  
Fundamental Frequency ◽  
Matched Control ◽  
Vocal Folds ◽  
Group Research ◽  
The Mean ◽  
Voice Fundamental Frequency ◽  
The Voice ◽  
Previous Group ◽  
Age And Sex

Previous group research has shown that the mean voice-fundamental frequency (F0) for individuals who smoke is lower than that of age- and sex-matched nonsmokers. It is believed that this reduction in F0 is a result of edema of the vocal folds caused by tobacco smoke. This study investigated F0 changes during smoking and no-smoking periods. Data were collected before, during, and after a 40-hour period of no-smoking. Analysis of the voice recordings showed a rise in voice F0 for the two smoking subjects during the 40-hour no-smoking period. Age- and sex-matched control subjects did not show a rise in their F0 during the same tasks. Results suggest that the pitch-lowering effects of cigarette smoking may be reversed after as few as 40 hours of smoking cessation.

Enlargement of cerebrospinal fluid spaces in long-term benzodiazepine abusers

1987 ◽  
Vol 17 (4) ◽  
pp. 869-873 ◽  
Author(s):  
C. Schmauss ◽  
J.-C. Krieg
Keyword(s):  
Low Dose ◽  
Matched Control ◽  
Control Group ◽  
High Dose ◽  
Withdrawal Therapy ◽  
The Mean ◽  
Dose Dependent ◽  
Dose Dependent Effect ◽  
Age And Sex

SynopsisIn 17 benzodiazepine (BDZ) dependent in-patients a CT scan was performed before initiation of withdrawal therapy. The evaluation of the ventricular to brain ratio (VBR) by standardized and computerized measurements revealed significantly higher mean VBRs for both high-and low-dose BDZ-dependent patients compared to the mean VBR of an age- and sex-matched control group. In addition, the mean VBR of high-dose BDZ-dependent patients (N = 8) was significantly higher than the mean VBR of low-dose BDZ-dependent patients (N = 9). This difference could not be accounted for by the age of the patients or duration of BDZ-dependency and, therefore, suggests a dose-dependent effect of BDZs on the enlargement of internal CSF-spaces. On the other hand, higher values for the width of external CSF-spaces were found to be related to increasing age of the patients and duration of BDZ-dependency.

The Development of Fundamental Frequency in 6- to 10-Year Old Children: A Brief Study

1998 ◽  
Vol 28 (1-2) ◽  
pp. 55-62 ◽  
Author(s):  
S. P. Whiteside ◽  
C. Hodgson
Keyword(s):  
Standard Deviation ◽  
Fundamental Frequency ◽  
Picture Naming ◽  
Age Groups ◽  
Naming Task ◽  
Final Position ◽  
The Mean ◽  
Age And Sex

This brief study investigates the development of fundamental frequency (FO) in pre-adolescent children as a function of age and sex. The children who took part in the study were divided into three age groups: 6, 8 and 10 years. Each group consisted of three males and three females. Each subject produced nine target phrases with [] in phrase-final position, which were elicited via a picture-naming task. FO was estimated for the nine target utterances and the following FO parameters were derived: mean FO for the whole phrase; FO range for the whole phrase; standard deviation values of FO for the whole phrase and mean FO for the phrase-final vowel [α:]. Results indicated that FO parameters generally decreased with age, and by age 10 years the males had lower values than the females for all four parameters. Results also indicated that the mean standard deviation of FO across the phrase was significantly higher for the females compared to that for the males.

Speaking Fundamental Frequency Characteristics of Five- and Six-Year-Old Children with Mongolism

1970 ◽  
Vol 13 (2) ◽  
pp. 418-425 ◽  
Author(s):  
Bernd Weinberg ◽  
Marsha Zlatin
Keyword(s):  
Fundamental Frequency ◽  
Trisomy 21 ◽  
Clinical Observation ◽  
Control Sample ◽  
Frequency Standard ◽  
Normal Children ◽  
The Subject ◽  
The Mean ◽  
Voice Fundamental Frequency ◽  
Speaking Fundamental Frequency

Spontaneous speech samples of 27 children with trisomy-21 type Down’s syndrome and 66 normal children were tape-recorded and analyzed for mean fundamental frequency, standard deviation, and range. Results indicate that the mean speaking fundamental frequency (SFF) level for the sample of children with mongolism was significantly higher than the mean SFF level for the control sample. Approximately 50% of the children with mongolism had mean SFF levels exceeding the highest mean SFF level of their matched controls. In only two cases did the mean SFF for a child with mongolism fall below the mean SFF level for control children of the same age and sex. No child with mongolism exhibited a mean SFF level below the lowest mean SFF for any control subject. The subject in question is the clinical observation that children with mongolism typically have low voice fundamental frequency levels.

Voice disorders after total thyroidectomy: Prospective patient self-assessment in comparison with traditional and alternative methods of examining the vocal folds

2020 ◽  
Author(s):  
Alexander Shulutko ◽  
Vasiliy Semikov ◽  
Andrey Moiseev ◽  
Elkhan Osmanov ◽  
Yulia Boblak ◽  
...  
Keyword(s):  
Total Thyroidectomy ◽  
Vocal Folds ◽  
Indirect Laryngoscopy ◽  
Alternative Methods ◽  
Original Form ◽  
Self Assessment ◽  
The Third ◽  
The Mean ◽  
The Voice ◽  
Patient Self Assessment

Abstract Background Voice alterations after thyroidectomy with mobile vocal folds are common. Ultrasonography has been used to assess the mobility of the vocal folds after thyroidectomy. Methods 54 patients underwent thyroidectomy. Indirect laryngoscopy, ultrasonography and GRBAS scoring were performed preoperatively,3 days, 2 and 6 months postoperatively. Results On the third postoperative day, the mobility of the vocal folds was preserved in 52 patients and paresis were recorded in 2 patients. All patients after total thyroidectomy noted the presence of voice alteration in the absence of the postoperative paresis of the vocal folds. On the third postoperative day, the voice was impaired by all criteria of the GRBAS scale, but mainly due to roughness (85%). Sixth month postoperatively 62% of the subjects considered the voice to be altered. Asthenia was observed in 39%. On the third postoperative day indirect laryngoscopy revealed the unchanged vocal folds, the symmetrical edema and the shortening of one of the vocal folds in 56%,42% and 1.9%. Six months postoperatively, the vocal folds returned to their original form. Ultrasonography was well correlated to the results of indirect laryngoscopy. Patients with edema of the vocal folds had a significantly higher mean GRBAS grade than patients without edema. The mean GRBAS score decreased from 3.36 to 0.90, 3 days and 6 months postoperatively. Conclusion Voice alteration after total thyroidectomy is always present. Postoperative edema represents a likely main cause of voice alteration and resolves within 6 months. Ultrasonography is recommended as alternative to indirect laryngoscopy in assessing of the vocal folds in thyroid surgery patients.

scholarly journals Association of Hypertension and Smoking with Ischaemic Stroke

2013 ◽  
Vol 3 (1) ◽  
pp. 16-18
Author(s):  
K Kirtania ◽  
N Sultana ◽  
S Ahmed ◽  
A Khatun
Keyword(s):  
Cigarette Smoking ◽  
Ischaemic Stroke ◽  
Matched Control ◽  
Strong Relationship ◽  
Control Group ◽  
Case Group ◽  
Medical College ◽  
Study Population ◽  
The Mean ◽  
Control Study

Hypertension is one of the most important modifiable risk factors for ischemic stroke. Cigarette smoking is a risk factor for atherosclerotic disease. There is a strong relationship between hypertension and cigarette smoking with ischaemic stroke. A case control study was undertaken to see the association of hypertension and cigarette smoking with ischaemic stroke. The study was done from January to December 2009 in the Department of Biochemistry, Dhaka Medical College, Dhaka. A total of 60 subjects were selected as study population. Among them 30 were diagnosed case of ischaemic stroke and 30 were age-and sex-matched control subjects. It was found that 60% patients of case group and 20% respondents of control group were hypertensive and diffrence was significant. Study showed that 56.66% of cases and 53.33% of controls were smoker and the findings were insignificant. The mean duration of smoking was 27.41 ± 2.98 years in cases and 15.63 ± 2.85 years in controls which was significant. The study suggests that hypertension is significantly associated with ischaemic stroke and longer duration of smoking also associated with ischaemic stroke. DOI: http://dx.doi.org/10.3329/bjmb.v3i1.13802 Bangladesh J Med Biochem 2010; 3(1): 16-18

scholarly journals Study on Lipid Profile in Offspring of Dyslipidemic Parents

2012 ◽  
Vol 17 (1) ◽  
pp. 37-40
Author(s):  
MKH Azad ◽  
SS Hussain ◽  
MBK Choudhury ◽  
FR Mowsumi
Keyword(s):  
Cardiovascular Disease ◽  
High Density Lipoprotein ◽  
Lipid Profile ◽  
Genetic Predisposition ◽  
Matched Control ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Low Density ◽  
The Mean ◽  
Age And Sex

As dyslipidemia is responsible for remarkable cause of cardiovascular disease which is considered as the number one cause of death globally, this study was undertaken to evaluate the lipid profile status of offspring of dyslipidemic parents in comparison with the offspring of normolipidemic parents. In this study, carried out on 89 subjects, the mean total cholesterol (TC), triglyceride (TG), high density lipoprotein (HDL-c) and low density lipoprotein (LDL-c) were 162.18 ± 20.97, 168.98 ± 33.51, 39.09 ± 3.62 and 90.41 ± 18.64 mg/dl respectively in adolescents with parental dyslipidemia and 158.38 ± 12.67, 157.22 ± 15.06, 40.51 ± 2.90 and 86.42 ± 12.39 mg/dl respectively in control adolescents. There were significant differences (p < 0.05) of TG and HDL-c between cases and controls where HDL-c choesterol was significantly lower in offspring of dyslipidemic parents then the offspring of normolipidemic parents. The findings of this study reflect the association of offspring dyslipidemia with parental dyslipidemia, probably due to some genetic predisposition. Offspring of dyslipidemic parents have higher levels of TC, TG, LDL-c and lower level of HDL-c compared to age and sex matched control subjects. DOI: http://dx.doi.org/10.3329/jdnmch.v17i1.12191 J. Dhaka National Med. Coll. Hos. 2011; 17 (01): 37-40

A Voice Accumulator—Validation and Application

1989 ◽  
Vol 32 (2) ◽  
pp. 451-457 ◽  
Author(s):  
Ann-Christine Ohlsson ◽  
Olle Brink ◽  
Anders Lofqvist
Keyword(s):  
Fundamental Frequency ◽  
Vocal Behavior ◽  
Front Part ◽  
Natural Conditions ◽  
Voice Signal ◽  
Frequency Level ◽  
Speech Pathologists ◽  
Voice Fundamental Frequency ◽  
The Voice ◽  
Voice Use

Studies of vocal behavior under natural conditions require suitable techniques for obtaining records of voice use. We describe the operation of a newly designed voice accumulator that allows registration of fundamental frequency and phonation time during a 12-hour period. The device is based on microprocessors and allows accumulation of the voice fundamental frequency within 60–600 Hz. The voice signal is picked up by a contact microphone attached to the front part of the neck. Analysis of fundamental frequency distribution and phonation time is made on a personal computer. Validation of the device shows it to provide accurate measurements of fundamental frequency, although it tends to underestimate phonation time. In a field test, the accumulator was used to analyze vocal behavior during two work-days in a group of nurses and a group of speech pathologists. Overall, the speech pathologists had a lower fundamental frequency level and higher values of phonation time than the nurses. These field results confirm the validation of the voice accumulator.

scholarly journals Voice challenge in transgender women: trans women self-perception of voice handicap as compared to gender perception of naïve listeners

Revista CEFAC ◽  
2018 ◽  
Vol 20 (1) ◽  
pp. 79-86 ◽  
Author(s):  
Jeanne Gabriele Schmidt ◽  
Bárbara Niegia Garcia de Goulart ◽  
Maria Elza Kazumi Yamaguti Dorfman ◽  
Gabriel Kuhl ◽  
Lauren Medeiros Paniagua
Keyword(s):  
Fundamental Frequency ◽  
Transgender Women ◽  
Descriptive Statistics ◽  
Self Perception ◽  
Women's Voice ◽  
Gender Perception ◽  
The Mean ◽  
The Voice ◽  
Spearman’S Correlation ◽  
Positive Significant Correlation

ABSTRACT Purpose: to analyze the self-perception of transgender women’s voice handicap in comparison to the voices’ gender perception by naïve listeners. Methods: 31 transgender women, who were first submitted to vocal acoustic assessment and had their voices recorded to measure fundamental frequency and standard deviations, were eligible to the study. Next, they answered to the Voice Handicap Index protocol, from which, at the end of data collection, the most suited questions to the daily demands of this population were selected. Subsequently, 50 naïve blindfolded listeners were exposed to the recordings and had to identify the voices as males, females or undefined. Descriptive statistics were applied to speakers’ characteristics and the Spearman's correlation coefficient was applied to the protocol scores and the speaker's voice identifications. Results: the mean fundamental frequency found was 172.40 Hz (SD=4.8Hz) and one third of the transgender women reported being satisfied with their voices. A moderate positive significant correlation was found in voices considered as males, and strongly significant and negative in voices considered as females. For the voices considered undefined, however, no significant correlation was found. Conclusion: transgender women’s self-perception of voice handicap is directly related to naïve listeners' perception of their voice gender.

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