Some Masking Effects Produced by Low-Frequency Vowel Formants in Persons with Sensorineural Hearing Loss

1975 ◽  
Vol 18 (2) ◽  
pp. 261-271 ◽  
Author(s):  
Ellen M. Danaher ◽  
J. M. Pickett
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Low Frequency ◽  
Normal Hearing ◽  
Sensorineural Hearing ◽  
Backward Masking ◽  
Vowel Formants ◽  
Second Formant ◽  
Sensorineural Loss

Discrimination of second-formant (F2) transitions in synthetic vowels was measured with and without the first formant (F1) present, with F1 and F2 presented monotically vs dichotically, and with the onset of F1 delayed relative to the onset of F2. Twenty-three subjects with sensorineural loss were tested. When F2 was presented alone, discrimination thresholds were the same as those of normal-hearing subjects. In most sensorineural subjects, discrimination was reduced whenever F1 was present in the stimulus. F1 produced three types of masking that reduced the ability to discriminate F2 transitions: upward spread of masking and backward masking occurred when F1 and F2 were presented to the same ear; a type of central masking occurred when F1 and F2 were presented to opposite ears.

Sensorineural Hearing Loss and Upward Spread of Masking

1970 ◽  
Vol 13 (2) ◽  
pp. 426-437 ◽  
Author(s):  
Ellen S. Martin ◽  
J. M. Pickett
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Pure Tone ◽  
Normal Hearing ◽  
Sensorineural Hearing ◽  
Auditory Thresholds ◽  
Noise Rejection ◽  
Low Pass ◽  
Masking Noise ◽  
Sensorineural Loss

Pure-tone auditory thresholds were obtained in quiet and in three levels of masking noise for one normal-hearing group and five groups of subjects with different degrees of sensorineural loss. The masker was a low-pass noise, cut off at 250 Hz. It was presented at overall levels of 77, 97, and 107 dB SPL. Pure-tone thresholds were obtained at test frequencies within and above the masking band. A measure of noise rejection slope was used to describe spread of masking. Degree of loss, configuration of loss, and level of masking noise appear to have marked influences on upward spread of masking patterns in sensorineural subjects.

scholarly journals Altered Brain Functional Activity in Infants with Congenital Bilateral Severe Sensorineural Hearing Loss: A Resting-State Functional MRI Study under Sedation

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Shuang Xia ◽  
TianBin Song ◽  
Jing Che ◽  
Qiang Li ◽  
Chao Chai ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Visual Information ◽  
Low Frequency ◽  
Normal Subjects ◽  
Normal Hearing ◽  
Sensorineural Hearing ◽  
Language And Vision ◽  
Mri Study ◽  
Loss Of Hearing

Early hearing deprivation could affect the development of auditory, language, and vision ability. Insufficient or no stimulation of the auditory cortex during the sensitive periods of plasticity could affect the function of hearing, language, and vision development. Twenty-three infants with congenital severe sensorineural hearing loss (CSSHL) and 17 age and sex matched normal hearing subjects were recruited. The amplitude of low frequency fluctuations (ALFF) and regional homogeneity (ReHo) of the auditory, language, and vision related brain areas were compared between deaf infants and normal subjects. Compared with normal hearing subjects, decreased ALFF and ReHo were observed in auditory and language-related cortex. Increased ALFF and ReHo were observed in vision related cortex, which suggest that hearing and language function were impaired and vision function was enhanced due to the loss of hearing. ALFF of left Brodmann area 45 (BA45) was negatively correlated with deaf duration in infants with CSSHL. ALFF of right BA39 was positively correlated with deaf duration in infants with CSSHL. In conclusion, ALFF and ReHo can reflect the abnormal brain function in language, auditory, and visual information processing in infants with CSSHL. This demonstrates that the development of auditory, language, and vision processing function has been affected by congenital severe sensorineural hearing loss before 4 years of age.

Clinical characteristics and prognosis of low frequency sensorineural hearing loss without vertigo

2015 ◽  
Vol 136 (2) ◽  
pp. 159-163 ◽  
Author(s):  
Ah Ra Jung ◽  
Myung Gu Kim ◽  
Sung Su Kim ◽  
Sang Hoon Kim ◽  
Seung Geun Yeo
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Clinical Characteristics ◽  
Low Frequency ◽  
Sensorineural Hearing

scholarly journals Effect of sinusoidally amplitude modulated broadband noise stimuli on stream segregation in individuals with sensorineural hearing loss

2020 ◽  
Author(s):  
Jawahar Antony P ◽  
Animesh Barman
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Amplitude Modulation ◽  
Modulation Frequency ◽  
Study Groups ◽  
Normal Hearing ◽  
Broadband Noise ◽  
Sensorineural Hearing ◽  
Stream Segregation ◽  
Temporal Cues

Background and Aim: Auditory stream segre­gation is a phenomenon that splits sounds into different streams. The temporal cues that contri­bute for stream segregation have been previ­ously studied in normal hearing people. In peo­ple with sensorineural hearing loss (SNHL), the cues for temporal envelope coding is not usually affected, while the temporal fine structure cues are affected. These two temporal cues depend on the amplitude modulation frequency. The present study aimed to evaluate the effect of sin­usoidal amplitude modulated (SAM) broadband noises on stream segregation in individuals with SNHL. Methods: Thirty normal hearing subjects and 30 subjects with mild to moderate bilateral SNHL participated in the study. Two experi­ments were performed; in the first experiment, the AB sequence of broadband SAM stimuli was presented, while in the second experiment, only B sequence was presented. A low (16 Hz) and a high (256 kHz) standard modulation fre­quency were used in these experiments. The subjects were asked to find the irregularities in the rhythmic sequence. Results: Both the study groups could identify the irregularities similarly in both the experi­ments. The minimum cumulative delay was sli­ghtly higher in the SNHL group. Conclusion: It is suggested that the temporal cues provided by the broadband SAM noises for low and high standard modulation frequencies were not used for stream segregation by either normal hearing subjects or those with SNHL. Keywords: Stream segregation; sinusoidal amplitude modulation; sensorineural hearing loss

scholarly journals Quality of Life in Children with Sensorineural Hearing Loss

2019 ◽  
Vol 162 (1) ◽  
pp. 129-136 ◽  
Author(s):  
Evette A. Ronner ◽  
Liliya Benchetrit ◽  
Patricia Levesque ◽  
Razan A. Basonbul ◽  
Michael S. Cohen
Keyword(s):  
Quality Of Life ◽  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Normal Hearing ◽  
Sensorineural Hearing ◽  
Significant Difference ◽  
Pedsql 4.0 ◽  
Hearing Device ◽  
Prospective Longitudinal

Objective To assess quality of life (QOL) in pediatric patients with sensorineural hearing loss (SNHL) with the Pediatric Quality of Life Inventory 4.0 (PedsQL 4.0) and the Hearing Environments and Reflection on Quality of Life 26 (HEAR-QL-26) and HEAR-QL-28 surveys. Study Design Prospective longitudinal study. Setting Tertiary care center. Subjects and Methods Surveys were administered to patients with SNHL (ages 2-18 years) from July 2016 to December 2018 at a multidisciplinary hearing loss clinic. Patients aged >7 years completed the HEAR-QL-26, HEAR-QL-28, and PedsQL 4.0 self-report tool, while parents completed the PedsQL 4.0 parent proxy report for children aged ≤7 years. Previously published data from children with normal hearing were used for controls. The independent t test was used for analysis. Results In our cohort of 100 patients, the mean age was 7.7 years (SD, 4.5): 62 participants had bilateral SNHL; 63 had mild to moderate SNHL; and 37 had severe to profound SNHL. Sixty-eight patients used a hearing device. Mean (SD) total survey scores for the PedsQL 4.0 (ages 2-7 and 8-18 years), HEAR-QL-26 (ages 7-12 years), and HEAR-QL-28 (ages 13-18 years) were 83.9 (14.0), 79.2 (11.1), 81.2 (9.8), and 77.5 (11.3), respectively. Mean QOL scores for patients with SNHL were significantly lower than those for controls on the basis of previously published normative data ( P < .0001). There was no significant difference in QOL between children with unilateral and bilateral SNHL or between children with SNHL who did and did not require a hearing device. Low statistical power due to small subgroup sizes limited our analysis. Conclusion It is feasible to collect QOL data from children with SNHL in a hearing loss clinic. Children with SNHL had significantly lower scores on validated QOL instruments when compared with peers with normal hearing.

Significance of 1 kHz Pure-tone Threshold in Acute Low-frequency Sensorineural Hearing Loss

2018 ◽  
Vol 39 (10) ◽  
pp. e950-e955
Author(s):  
Chi Kyou Lee ◽  
Jong Bin Lee ◽  
Kye Hoon Park ◽  
Ho Yun Lee ◽  
Mi-Jin Choi ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Pure Tone ◽  
Low Frequency ◽  
Sensorineural Hearing ◽  
Pure Tone Threshold

Transient Retrocochlear Low-Frequency Sensorineural Hearing Loss

1991 ◽  
Vol 101 (6) ◽  
pp. 643???647 ◽  
Author(s):  
Takashi Fukaya ◽  
Yasuya Nomura ◽  
Takanori Fukushima
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Low Frequency ◽  
Sensorineural Hearing
Sign in / Sign up

Export Citation Format

Share Document