Perceptual Judgment of Voice Pitch during Pitch-Matching Tasks

2002 ◽  
Vol 94 (3) ◽  
pp. 967-974 ◽  
Author(s):  
Marianne Schueller ◽  
Donald Fucci ◽  
Z. S. Bond
Keyword(s):  
Perceptual Judgment ◽  
Speech Language Pathology ◽  
Voice Pitch ◽  
Pitch Range ◽  
Male And Female ◽  
Female Speaker ◽  
Pitch Matching ◽  
Group I ◽  
Significant Difference ◽  
Language Pathology

This study investigated the perceptual judgment of voice pitch. 24 individuals were assigned to two groups to assess whether there is a difference in perceptual judgment of voice during pitch-matching tasks. Group I, Naïve listeners, had no previous experience in anatomy, physiology, or voice pitch-evaluation methods. Group II, Experienced listeners, were master's level speech-language pathologists having completed academic training in evaluation of voice. Both groups listened to identical stimuli, which required matching audiotaped voice-pitch samples of a male and female voice to a note on an electronic keyboard. The experiment included two tasks. The first task assessed pitch range, which required marching of the lowest and highest voice pitch of both a male and female speaker singing /a/ to a note on a keyboard. The second task assessed habitual pitch, which required matching of the voice pitch of a word spoken by a male and female speaker to a note on a keyboard. A one-way analysis of variance indicated a significant difference between groups occurred for only one of four conditions measured, perceptual judgment of the female pitch range. No differences between groups were found in the perceptual judgments of the male pitch range or during perceptual judgment of the female or male habitual pitch, suggesting that the skill possessed by speech-language pathology students is no different from that of inexperienced listeners.

Effects of Gender on Listeners' Judgments of Speech Intelligibility

1996 ◽  
Vol 83 (3) ◽  
pp. 771-775 ◽  
Author(s):  
Lee Ellis ◽  
Donald Fucci ◽  
Loriann Reynolds ◽  
Barbaranne Benjamin
Keyword(s):  
Magnitude Estimation ◽  
Speech Intelligibility ◽  
Male And Female ◽  
Female Speaker ◽  
Gender Biases ◽  
Significant Difference ◽  
Male Speaker ◽  
Female Subjects

Effects of gender on listeners' judgments of intelligibility were investigated. Subjects (15 women; 15 men) provided magnitude-estimation scaling responses and over-all impressions of the intelligibility of a male and female speaker's comparable versions of audiotaped speech samples varying systematically in terms of the number of phonemes produced correctly. There was no significant difference between male and female subjects' magnitude-estimation scaling responses; however, their over-all impressions of the intelligibility of the speakers tended to differ. Women indicated that the male speaker was more understandable, and men indicated that the female speaker was more understandable. Magnitude-estimation scaling may provide an objective means for evaluating a speaker's intelligibility. It appears to transcend gender-biases associated with judgments of speech intelligibility.

Distortions in the Memory of the Pitch of Speech

2007 ◽  
Vol 54 (2) ◽  
pp. 148-160 ◽  
Author(s):  
Steven E. Stern ◽  
John W. Mullennix ◽  
Olivier Corneille ◽  
Johanne Huart
Keyword(s):  
Memory Bias ◽  
Voice Pitch ◽  
Pitch Range ◽  
Male And Female ◽  
Female Speech

Abstract. Corneille, Huart, Becquart, & Brédart (2004) found that people remember ambiguous race faces as closer to a race prototype than they actually are. In three studies, we examined whether this memory bias generalizes to voice memory. In Studies 1 and 2, participants listened to synthesized male and female speech samples (high, moderate, or low pitch) and were asked to identify a voice target when paired against distracters higher or lower in pitch. The results showed that pitch distortions occurred, with the pattern consistent with assimilation toward low and high ends of the pitch continuum. Study 3 replicated this result with a wider voice pitch range. The results parallel those of Corneille et al. (2004) . The implications of this work are discussed.

Effect of Pesticide Indoxacarb on the Thyroid Gland in Swiss Albino Mice

2021 ◽  
pp. 23-30
Author(s):  
Salma Abusrer ◽  
Zainab EL Mabrouk ◽  
Habiba El Jaafari ◽  
Naema Shibani ◽  
Sassia Regeai
Keyword(s):  
Thyroid Gland ◽  
Control Group ◽  
Epithelial Tissue ◽  
Female Group ◽  
Male And Female ◽  
Swiss Albino Mice ◽  
Group I ◽  
Significant Difference ◽  
Albino Mice ◽  
Tsh Levels

Background and objectives: Pesticides play an essential role in crop protection, but their overuse caused environmental pollution and harmful effect on different animal body systems, including the endocrine system. The thyroid gland is one of the homeostatic regulators of metabolic activities, which is affected by the elements of the external environment. There are very limited studies on the effect of indoxacarb on the histological architecture and functions of thyroid gland. Therefore, this study was conducted with the aim of examining functionally and histologically of the thyroid gland exposed to indoxacarb. Method: 24 Swiss albino mice male and female were randomly divided into two groups, each group male and female; group I is a control group given orally with 1ml of distilled water and group II orally treated with 120 mg/kg Bw. of indoxacarb daily for 3 weeks. Blood samples were collected from each mouse under anesthetic to determine the thyroid-stimulating hormone (TSH), thyroxine (T4) levels. Thyroid gland histopathology was attained for the evaluation of the indoxacarb effect. Results: The treated mice showed non-significant increase in T4 levels and a significant decrease in TSH levels but there was no significant difference recorded in T4 and TSH levels between sexes. Histologically, the sections of the thyroid gland of the treated group showed empty and irregular follicles, degeneration of the follicular epithelial tissue, and hyperplasia in the lining of some follicles, the capsule with congestion blood vessels. Conclusion: This study concluded that indoxacarb may act as a thyroid gland toxicant.

Pre-professional students’ explicit syntax knowledge: Preliminary analysis

2017 ◽  
Vol 33 (3) ◽  
pp. 255-266 ◽  
Author(s):  
Danielle Brimo ◽  
Tina Melamed
Keyword(s):  
Language Development ◽  
Explicit Knowledge ◽  
Composite Score ◽  
Education Majors ◽  
Speech Language Pathology ◽  
Professional Students ◽  
Significant Difference ◽  
Language Knowledge ◽  
Language Pathology ◽  
Knowledge Of Language

Existing research concludes that educators have varying levels of language knowledge. Educators’ varying levels of language knowledge may be related to the type of content knowledge they received while in school. The purpose of this study was to compare the performance of pre-professional speech-language pathology (SLP) students who have taken language development coursework to pre-professional students who have not taken language development coursework on an explicit syntax knowledge task. Forty-four undergraduate and graduate students from speech language pathology, early childhood education, and education majors completed a 52 question explicit syntax knowledge task comprised of matching, counting, expressive, and receptive subtests. Pre-professional students performed the best on the expressive subtest, followed by the matching subtest, the receptive subtest, and the counting subtest. There was not a significant difference in total score, matching/counting composite score, or express/receptive composite score between pre-professional SLP students who have taken language development coursework and pre-professional students who have not taken language development coursework. The results suggest that language development coursework may not provide enough direct instruction about the structure of language, or at least not at the level that could provide pre-professional students with explicit syntax knowledge. This study contributes to the growing body of research investigating pre-professional students’ and educators’ explicit knowledge of language and the effects of coursework on that knowledge.

scholarly journals Determination of The Concentration of Calcium Level in Blood of Babies Kept Growing on Breastfeeding, Artificial Feeding and Mixed Feeding in Libya

2020 ◽  
Vol 4 (2) ◽  
pp. 1-6
Author(s):  
Khaled Benelhaj ◽  
Fathia Lazrag
Keyword(s):  
Calcium Level ◽  
Serum Levels ◽  
Artificial Feeding ◽  
Mixed Feeding ◽  
Blood Calcium ◽  
Male And Female ◽  
Group I ◽  
Significant Difference ◽  
The Mean ◽  
Mean Concentration

Objectives: This study was designed to investigate the concentration of calcium level in blood of breast, artificial and mixed feeding babies. Methods: The total number of babies covered were 269 babies of different ages, however, the babies were divided into four groups, including group (I) consists of 98 male and female babies aged between (1 day -6 months), group (II) consists of 53 male and female babies aged between (7 m -12 m), group (III) consists of 59 male and female babies aged between (13 m -18 m), and group (IV) consists of 59 male and female babies aged between (19 m -2 m). Results: The mean concentration of serum blood calcium in breast feeding (9.25 mg/dL) was significantly lower (P < 0.05) than artificial feeding (9.79 mg/ dL) and mixed feeding (9.88 mg/dL). Meanwhile, the mean concentration of serum blood calcium level (8.93 mg/ dL) in babies aged between (13 m-18m) was significantly lower (p<0.05) than other aged groups. However, the effect of the babies’ gender o the concentration of calcium indicated that the serum calcium levels did not show any significant difference among males and females’ babies. Conclusion: The relationship between age type of feeding and the gender show a correlation among the factors studied, therefore, it can be concluded that the babies fed on mixed milk got a benefit regarding the levels of these minerals as their serum levels are higher than the serum levels of babies fed on breast and artificial milk.

An Assessment of Pitch-Matching Abilities Among Speech-Language Pathology Graduate Students

1996 ◽  
Vol 5 (2) ◽  
pp. 91-95 ◽  
Author(s):  
Jennifer Barnes Weiner ◽  
Linda Lee ◽  
Jeannette Cataland ◽  
Joseph C. Stemple
Keyword(s):  
Graduate Students ◽  
Speech Language Pathology ◽  
Pitch Matching ◽  
Language Pathology

Gender and Contractile Functions of Slow and Fast Skeletal Muscles in Streptozotocin Induced Diabetic Sprague Dawley Rats

2012 ◽  
Vol 19 (4) ◽  
pp. 417-424 ◽  
Author(s):  
Kamil Asghar Imam ◽  
Madiha Sarwar ◽  
Usman Wali ◽  
Lubna Siddique ◽  
Shahida Perveen
Keyword(s):  
Skeletal Muscles ◽  
Diabetic Rats ◽  
Sprague Dawley ◽  
Male And Female ◽  
Group I ◽  
Sprague Dawley Rats ◽  
Significant Difference ◽  
Contractile Parameters ◽  
Data Acquisition Unit ◽  
Diabetes Induction

AbstractObjectives: Diabetes mellitus has been linked with specific morphological andmetabolic abnormalities of skeletal muscle in a fiber specific manner. Aim: Thepresent study was designed to compare the contractile functions of slow and fastskeletal muscles in streptozotocin (STZ) induced diabetic male and female SpragueDawley rats. Material and methods: Thirty healthy Sprague Dawley rats (15 maleand 15 female) were divided into two groups and studied after four weeks followingdiabetes induction. The rats in group I (male diabetic; n = 15) and group II (femalediabetic; n = 15) were fed on normal pellet diet and water ad libitum and rendereddiabetic by single intraperitoneal injection of STZ 65 mg/kg body weight at the startof study (day 1). At the end of four weeks, the contractile parameters of slow soleusand fast extensor digitorum longus (EDL) muscles were recorded by iWorx advancedanimal/human physiology data acquisition unit (AHK/214). Results: At the end offour weeks, the weight of isolated soleus and EDL muscles in the male diabetic ratswas significantly higher (p < 0.001) as compared to the female diabetic rats.However, no significant difference was found in any of the contractile functions ofisolated soleus and EDL muscles when compared between the male and femalediabetic rats. Conclusion: No gender differences exist in the contractile functions ofslow and fast skeletal muscles in streptozotocin induced diabetic Sprague Dawleyrats.

The Tritone Paradox and the Pitch Range of the Speaking Voice: A Dubious Connection

1994 ◽  
Vol 12 (2) ◽  
pp. 227-255 ◽  
Author(s):  
Bruno H. Repp
Keyword(s):  
Individual Differences ◽  
Striking Difference ◽  
Voice Pitch ◽  
Pitch Range ◽  
Significant Difference ◽  
Tritone Paradox ◽  
The Individual ◽  
Individual Voice ◽  
Voice Range ◽  
The Voice

Deutsch and coworkers (Deutsch, 1991; Deutsch, North, & Ray, 1990) have proposed that individual differences in the perception of the "tritone paradox" derive from listeners' reference to a mental pitch template, acquired through experience with the pitch range of their own voice, as well as with the voice ranges typical of their language community. These authors have reported a correspondence between perceptual results and the upper limit of the individual voice range for a small group of selected subjects, as well as a striking difference in tritone perception between American and British listeners. The present study compared groups of Dutch, British, and American listeners on two tritone tests and also collected voice pitch data for the first two groups in a reading task. There was no within-group correlation of perceptual results with individual differences in voice range. Differences in tritone perception as a function of stimulus characteristics (spectral envelope) were much larger than reported by Deutsch, which casts doubt on the notion of stable individual pitch templates. A significant difference between British and American listeners, with the Dutch group in between, was found in one of the two tritone tests but not in the other. Although the origin of this difference remains unclear, it seems unlikely that it has anything to do with regional differences in voice pitch range.

Hearing and Believing

1996 ◽  
Vol 5 (3) ◽  
pp. 7-23 ◽  
Author(s):  
Ray D. Kent
Keyword(s):  
Reliability And Validity ◽  
Perceptual Judgment ◽  
Speech Language Pathology ◽  
Validity And Reliability ◽  
Major Step ◽  
Threats To Validity ◽  
Language Pathology ◽  
History Of ◽  
Perceptual Assessment ◽  
Central Tool

Speech-language pathology relies on auditory-perceptual judgment as a central tool for classifying and measuring a variety of disorders of communication. Over the history of the field, a great deal has been written about the use of perceptual judgments for research and clinical practice. Auditory-perceptual methods carry strong advantages of convenience, economy, and robustness, but it is also clear that these judgments are susceptible to a variety of sources of error and bias. Awareness of these threats to validity and reliability is a major step in the effective and refined use of perceptual methods. Several common themes are evident in contemporary research on the perceptual assessment of voice disorders, stuttering, dysarthria, aphasia, and apraxia of speech. These five disorders are taken as primary foci in a discussion that (a) identifies threats to reliability and validity, and (b) offers suggestions for the improvement of auditory-perceptual methods, whether used alone or in combination with instrumental techniques.

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