The Effects of Stimulability on the Articulation of /s/ Relative to Cluster and Word Frequency of Occurrence

1976 ◽  
Vol 19 (3) ◽  
pp. 458-466 ◽  
Author(s):  
W. H. Moore ◽  
John Burke ◽  
Chris Adams
Keyword(s):  
Statistical Analysis ◽  
Word Frequency ◽  
Screening Test ◽  
Low Frequency ◽  
Frequency Of Occurrence ◽  
Low Frequencies ◽  
The Poor

This study investigated the effects of stimulability on the articulation of cluster nested /s/ in high- and low-frequency clusters and words. A good stimulability group and a poor stimulability group of /s/-defective seven-year-old children were investigated. Statistical analysis did not reveal significant differences between the articulatory performances of the two groups on words or clusters occurring with high or low frequency. Subjects in the good stimulability group obtained significantly fewer errors on the test stimuli than did subjects in the poor stimulability group. Correlational analyses indicated that stimulability was positively correlated with correct numbers of /s/ productions in both clusters and words occurring with both high and low frequency. Subjects' spontaneous /s/ errors on the Templin-Darley screening test were not found to be correlated with their stimulability scores or their imitative /s/ productions in words and clusters occurring with high or low frequencies.

Verbal Association by Chinese and American Students as a Function of Word Frequency and Mode of Presentation

1968 ◽  
Vol 23 (3_suppl) ◽  
pp. 1051-1060
Author(s):  
Elliott McGinnies ◽  
Thomas W. Turnage
Keyword(s):  
Word Frequency ◽  
Low Frequency ◽  
Effective Communication ◽  
Frequency Of Occurrence ◽  
University Of Maryland ◽  
Mode Of Presentation ◽  
Verbal Association ◽  
American Students ◽  
The University ◽  
Frequent Exposure

Associations were obtained from 40 Ss each at National Taiwan University and the University of Maryland to words presented either vocally or in writing. The words varied in frequency of occurrence for both languages. American Ss produced more associations than the Taiwanese Ss under all conditions. In both samples number of associations increased with frequency of the stimulus words. Printed Chinese, however, enjoyed a significant advantage over spoken Chinese in evoking associations to infrequent words. This finding, which did not obtain for the English words, was attributed to (a) more frequent exposure of Taiwanese to low frequency words in print than in speech and (b) increased identifiability of infrequent Chinese words when printed. Implications for more effective communication between the two language communities were discussed.

Some Determinants of Word-Frequency Estimates

1975 ◽  
Vol 40 (3) ◽  
pp. 923-929 ◽  
Author(s):  
Margaret W. Matlin ◽  
David J. Stang
Keyword(s):  
Word Frequency ◽  
High Frequency ◽  
Low Frequency ◽  
Frequency Of Occurrence ◽  
True Frequency

Subjects saw Turkish nonsense words and estimated their frequency of occurrence (72 subjects, 12 words, Exp. I; 33 subjects, 16 words, Exp. II). Results indicated that: (a) low-frequency stimuli were overestimated while high-frequency stimuli were underestimated; (b) stimuli were judged more frequent when they were positively evaluated than when they were negatively evaluated; (c) stimuli were judged more frequent in a distributed presentation than in a massed presentation; (d) stimuli were judged more frequent when they were rated after a 2-wk. delay than when they were rated immediately; (e) a 2-wk. delay enhanced the interaction between true frequency and judged frequency; (f) stimuli were judged more frequent when they appeared at the beginning or end of the presentation period rather than in the middle.

Articulation of /s/ as a Function of Cluster and Word Frequency of Occurrence

1971 ◽  
Vol 14 (3) ◽  
pp. 476-485 ◽  
Author(s):  
Laurence B. Leonard ◽  
Stuart I. Ritterman
Keyword(s):  
Word Frequency ◽  
Low Frequency ◽  
Second Graders ◽  
Frequency Of Occurrence

This study examined frequency-of-occurrence effects on the articulatory productions of /s/ in words by 76 normal and 18 /s/-defective second graders. The stimuli, monosyllabic CCVC and CVCC words, consisted of high- and low-frequency words, with each word containing either a high- or low-frequency /s/ cluster. The stimuli were arranged in four permutations of cluster/word frequency combinations and were presented to the subjects in an imitation task. Significant differences were observed between the articulatory performances on high- versus low-frequency clusters, as well as on high- versus low-frequency words.

Tachistoscopic Word Recognition as a Function of Word Abstractness/Concreteness, Word Frequency, and IQ

1976 ◽  
Vol 42 (2) ◽  
pp. 471-476 ◽  
Author(s):  
Judi Cohen
Keyword(s):  
Word Recognition ◽  
Word Frequency ◽  
High Frequency ◽  
Low Frequency ◽  
Frequency Of Occurrence ◽  
Low Iq ◽  
Abstract Words ◽  
Concrete Words

Tachistoscopic word-recognition thresholds for abstract and concrete words of high and low frequency of occurrence were measured for 15 college subjects of high and 15 of low IQ to determine if word abstractness/concreteness is a significant one among these variables. Results refuted previous investigations with thresholds for abstract words being greater than thresholds for concrete words. Also, thresholds for high frequency of occurrence words were lower than for words of low frequency. Subjects with high and low IQs did not have different recognition thresholds. Frequency and word abstractness/concreteness interacted. Possible explanations for these findings are outlined.

A statistical approach to pollutant emissions from combined sewer systems

1997 ◽  
Vol 36 (8-9) ◽  
pp. 95-100 ◽  
Author(s):  
Robin G. Veldkamp ◽  
Jan B. M. Wiggers
Keyword(s):  
Suspended Solids ◽  
Statistical Approach ◽  
Low Frequency ◽  
Pollutant Emissions ◽  
Frequency Of Occurrence ◽  
Single Event ◽  
Sewer Systems ◽  
Impervious Area ◽  
Combined Sewer ◽  
Kjeldahl Nitrogen

This research is based on CSO emissions from Dutch sewer systems. During the years 1982 to 1989 research was done on several sewer systems, all of them equiped with a single overflow weir. Pollutant emissions were calculated from the measurements, whereby each storm was considered as a single event. Extreme emissions have a detrimental, sometimes even desastrous effect on water quality. Such extreme emissions are the result of heavy storms, giving it a low frequency of occurrence. From the measurements a statistical model was developed enabling the user to forecast extreme waste emissions with a certain return period in a range of 2 to 10 years. Five pollutants are put in the model: BOD, COD, Kjeldahl nitrogen, total phosphate and suspended solids. The model operates with standardized emission values in kg per ha of impervious area. When the model is used in practice the runoff area to the specific overflow under consideration has to be known.

scholarly journals Earless toads sense low frequencies but miss the high notes

2017 ◽  
Vol 284 (1864) ◽  
pp. 20171670 ◽  
Author(s):  
Molly C. Womack ◽  
Jakob Christensen-Dalsgaard ◽  
Luis A. Coloma ◽  
Juan C. Chaparro ◽  
Kim L. Hoke
Keyword(s):  
High Frequency ◽  
Species Differences ◽  
Low Frequency ◽  
Auditory Brainstem ◽  
Low Frequencies ◽  
Hearing Sensitivity ◽  
Sensory Pathways ◽  
Airborne Sound ◽  
Vibrational Sensitivity ◽  
Species Specific

Sensory losses or reductions are frequently attributed to relaxed selection. However, anuran species have lost tympanic middle ears many times, despite anurans' use of acoustic communication and the benefit of middle ears for hearing airborne sound. Here we determine whether pre-existing alternative sensory pathways enable anurans lacking tympanic middle ears (termed earless anurans) to hear airborne sound as well as eared species or to better sense vibrations in the environment. We used auditory brainstem recordings to compare hearing and vibrational sensitivity among 10 species (six eared, four earless) within the Neotropical true toad family (Bufonidae). We found that species lacking middle ears are less sensitive to high-frequency sounds, however, low-frequency hearing and vibrational sensitivity are equivalent between eared and earless species. Furthermore, extratympanic hearing sensitivity varies among earless species, highlighting potential species differences in extratympanic hearing mechanisms. We argue that ancestral bufonids may have sufficient extratympanic hearing and vibrational sensitivity such that earless lineages tolerated the loss of high frequency hearing sensitivity by adopting species-specific behavioural strategies to detect conspecifics, predators and prey.

scholarly journals Gender Assignment in Six North Scandinavian Languages: Patterns of Variation and Change

2021 ◽  
Vol 33 (3) ◽  
pp. 264-315
Author(s):  
Briana Van Epps ◽  
Gerd Carling ◽  
Yair Sapir
Keyword(s):  
Statistical Analysis ◽  
Word Frequency ◽  
Old Norse ◽  
Gender Assignment ◽  
Feminine Gender ◽  
The Feminine ◽  
Old Swedish ◽  
Gender System ◽  
Gender Change

This study addresses gender assignment in six North Scandinavian varieties with a three-gender system: Old Norse, Norwegian (Nynorsk), Old Swedish, Nysvenska, Jamtlandic, and Elfdalian. Focusing on gender variation and change, we investigate the role of various factors in gender change. Using the contemporary Swedish varieties Jamtlandic and Elfdalian as a basis, we compare gender assignment in other North Scandinavian languages, tracing the evolution back to Old Norse. The data consist of 1,300 concepts from all six languages coded for cognacy, gender, and morphological and semantic variation. Our statistical analysis shows that the most important factors in gender change are the Old Norse weak/strong inflection, Old Norse gender, animate/inanimate distinction, word frequency, and loan status. From Old Norse to modern languages, phonological assignment principles tend to weaken, due to the general loss of word-final endings. Feminine words are more susceptible to changing gender, and the tendency to lose the feminine is noticeable even in the varieties in our study upholding the three-gender system. Further, frequency is significantly correlated with unstable gender. In semantics, only the animate/inanimate distinction signifi-cantly predicts gender assignment and stability. In general, our study confirms the decay of the feminine gender in the Scandinavian branch of Germanic.

A waveform inversion technique for measuring elastic wave attenuation in cylindrical bars

Geophysics ◽  
1992 ◽  
Vol 57 (6) ◽  
pp. 854-859 ◽  
Author(s):  
Xiao Ming Tang
Keyword(s):  
Elastic Wave ◽  
Wave Attenuation ◽  
Waveform Inversion ◽  
Finite Size ◽  
Low Frequency ◽  
Frequency Range ◽  
Multiple Reflections ◽  
Low Frequencies ◽  
The Time Domain ◽  
Attenuation Values

A new technique for measuring elastic wave attenuation in the frequency range of 10–150 kHz consists of measuring low‐frequency waveforms using two cylindrical bars of the same material but of different lengths. The attenuation is obtained through two steps. In the first, the waveform measured within the shorter bar is propagated to the length of the longer bar, and the distortion of the waveform due to the dispersion effect of the cylindrical waveguide is compensated. The second step is the inversion for the attenuation or Q of the bar material by minimizing the difference between the waveform propagated from the shorter bar and the waveform measured within the longer bar. The waveform inversion is performed in the time domain, and the waveforms can be appropriately truncated to avoid multiple reflections due to the finite size of the (shorter) sample, allowing attenuation to be measured at long wavelengths or low frequencies. The frequency range in which this technique operates fills the gap between the resonant bar measurement (∼10 kHz) and ultrasonic measurement (∼100–1000 kHz). By using the technique, attenuation values in a PVC (a highly attenuative) material and in Sierra White granite were measured in the frequency range of 40–140 kHz. The obtained attenuation values for the two materials are found to be reliable and consistent.

Methods to isolate retrograde and prograde Rayleigh-wave signals

2019 ◽  
Vol 219 (2) ◽  
pp. 975-994 ◽  
Author(s):  
Gabriel Gribler ◽  
T Dylan Mikesell
Keyword(s):  
Rayleigh Wave ◽  
Time Domain ◽  
Fundamental Mode ◽  
Poisson Ratio ◽  
Low Frequency ◽  
Wave Dispersion ◽  
Low Frequencies ◽  
Retrograde Motion ◽  
Mode Identification ◽  
Time Frequency

SUMMARY Estimating shear wave velocity with depth from Rayleigh-wave dispersion data is limited by the accuracy of fundamental and higher mode identification and characterization. In many cases, the fundamental mode signal propagates exclusively in retrograde motion, while higher modes propagate in prograde motion. It has previously been shown that differences in particle motion can be identified with multicomponent recordings and used to separate prograde from retrograde signals. Here we explore the domain of existence of prograde motion of the fundamental mode, arising from a combination of two conditions: (1) a shallow, high-impedance contrast and (2) a high Poisson ratio material. We present solutions to isolate fundamental and higher mode signals using multicomponent recordings. Previously, a time-domain polarity mute was used with limited success due to the overlap in the time domain of fundamental and higher mode signals at low frequencies. We present several new approaches to overcome this low-frequency obstacle, all of which utilize the different particle motions of retrograde and prograde signals. First, the Hilbert transform is used to phase shift one component by 90° prior to summation or subtraction of the other component. This enhances either retrograde or prograde motion and can increase the mode amplitude. Secondly, we present a new time–frequency domain polarity mute to separate retrograde and prograde signals. We demonstrate these methods with synthetic and field data to highlight the improvements to dispersion images and the resulting dispersion curve extraction.

Trail Making Test Performance in Relation to Certain Experimenter, Test and Subject Variables

1964 ◽  
Vol 19 (1) ◽  
pp. 199-206 ◽  
Author(s):  
Oscar A. Parsons ◽  
Harriet I. Maslow ◽  
Freda Morris ◽  
J. Peter Denny
Keyword(s):  
Test Performance ◽  
Screening Test ◽  
Poor Performance ◽  
Trail Making Test ◽  
Psychiatric Disturbance ◽  
The Poor ◽  
Subject Variables ◽  
Trail Making ◽  
The Brain ◽  
Order Of Administration

The Trail Making Test, previously reported highly effective in differentiating brain-damaged from non-brain-damaged Ss, was administered to 21 brain-damaged Ss and 63 non-brain-damaged Ss. Since the latter Ss performed at a level indistinguishable from that of the brain-damaged Ss, several studies were designed in an attempt to “explain” the poor performance of the non-brain-damaged Ss. The possible effects of behavioral agitation, anxiety, examiner differences, facility with letters of the alphabet, order of administration, and ego-involvement were investigated. Only anxiety was found to be significantly related to performance. However, in other analyses age, education, vocabulary, and degree of psychiatric disturbance were significantly related to performance. Until these variables are considered in the scoring system, it seems unlikely that the TMT will be effective as a general screening test for brain-damage.

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