Download or read book A Central Factor in Pure Tone Auditory Fatigue written by Joel S. Wernick and published by . This book was released on 1963 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Auditory Fatigue written by Mary Jayne Capps and published by . This book was released on 1965 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Several Mental Tasks on Auditory Fatigue written by William Edward Collins and published by . This book was released on 1965 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Auditory Fatigue on Reaction Time in Normal Hearing Listeners written by and published by . This book was released on 2015 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hearing impaired individuals often report feeling fatigue at the end of the day. These individuals are forced to exert more cognitive effort throughout the day as they strain to understand speech in an ever-changing auditory environment through an impaired/degraded auditory system (Rabbitt, 1991). Today's digital hearing aids attempt to increase audibility and relieve cognitive strain through advanced signal processing techniques such as digital noise reduction (DNR). Recent research regarding noise and its effects on auditory fatigue in hearing impaired listeners suggests that DNR may reduce the effects of auditory fatigue (Sarampalis et al, 2009). The overarching goal of a future project is to understand the effectiveness of DNR in reducing listening effort and ways to quantify it. The present study sought to determine if reaction time alone is an accurate measure of auditory fatigue while isolating listening fatigue as a sole factor. Twenty young adults with normal hearing participated. Testing consisted of three parts: pre-test, fatigue inducing condition, and post-test. Pre- and post- tests consisted of a reaction time task using nonsense syllables and a subjective listening questionnaire. The overall reaction time in the post-fatiguing condition was higher than the pre-fatiguing condition. A one sample t test revealed no significant difference between the pre and post fatiguing condition reaction time for overall nonsense syllables and consonant final nonsense syllables. Pre- and post-fatiguing reaction time was significantly different for consonant initial nonsense syllables only. Results indicated that the 30 minute fatigue inducing condition did not affect reaction time in the post-tests for overall nonsense syllables and for consonant final nonsense syllables. This could be due to several factors. The reaction time task used in this study may not be an accurate measure of listening effort or the 30 minutes of effortful listening may not have been enough. The subjective listening effort questionnaire showed that subjects did feel more fatigued after the post-test than after the pre-test. Future studies are planned to expand upon the current study by assessing individuals with hearing loss as well as those exposed to longer duration of noise throughout the day.

Download or read book Auditory Fatigue written by Angelo Mirabella and published by . This book was released on 1964 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Auditory Fatigue on Reaction Time in Normal Hearing Listeners at Different Signal to Noise Ratios written by and published by . This book was released on 2016 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examined the effect of listening fatigue on the reaction time of young, normal hearing listeners at +5 and +10 dB signal to noise ratio. Reaction time was measured in a single task paradigm on twenty listeners (ages 19-30 years) before and after a fatigue-inducing listening task. The participants also completed a subjective rating questionnaire at the two intervals. Results indicated that there was no significant difference between the reaction times before and after listening fatigue. However, for a subgroup of stimuli (nonsense syllables ending with consonants) the reaction time was 52 msec longer after listening fatigue. The participants also rated significantly higher level of fatigue on the rating scale after being exposed to the listening task. Additionally, the reaction time for +5 dB signal-to-noise ratio was significantly longer than the reaction time for +10 dB. Findings from this study demonstrated that using a single-task reaction time measure, it is possible to evaluate the effect of listening effort (e.g. identifying speech stimuli at increasing difficult signal to noise ratios), but not for evaluating the effect of listening fatigue.

Download or read book A study of auditory fatigue based on the effect of monaural tones of written by Gordon Ashby McCoy and published by . This book was released on 1951 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Auditory Fatigue During Articulation written by Barry Frederick Luterman and published by . This book was released on 1969 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Various Aspects of Auditory Fatigue Caused by Listening to Loud Music written by Andrzej Dobrucki and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This chapter presents results of research on influence of auditory fatigue on some aspects of listening condition measured among various groups of listeners. Three experiments have been carried out. The aim of the first one was to find the influence of the kind of headphones used by young people on their hearing loss. The second experiment was concerning the temporary threshold shift (TTS) caused by the listening of loud musical signals after several time of sound exposure. The main interest of the third experiment was the detection ability of changes in spectrum of musical samples obtained after several time of listening to the loud music. It turned out that except for frequency of 4 kHz there is no relation between the types of preferred headphones and the shift of hearing threshold while for the frequency of 4 kHz, a statistically important influence of the headphone types on the threshold values was observed. The second and third experiments were carried out under conditions which normally exist in a studio or on the stage when the sound material is recorded and/or mixed. It turned out that after several loud music listening sessions the average value of temporary threshold shift reached more than 3 dB for 1 kHz and increased up to 6-7 dB with an exposure time of 120 minutes On the basis of results obtained from the third experiment, it was found that the decrease in ability to detect the spectrum changes for longer noise exposure exists particularly for lower changes (of ±1.5 dB) and at all frequency regions under investigation. It may suggest that the hearing system gets tired for the region of higher frequencies faster than for other bands after listening to loud music. The results may also be influenced by the mental fatigue which occurred after several time duration of permanently played loud sounds, together with demanding tasks. Such conditions involving the mental engagement in a noisy environment, which is referred to the natural scenery of the studio work can significantly reduce the time of exhaustion which causes the decrease of accuracy in solving several tasks. It should be also noted that the tendencies observed within young people culture in listening loud music in order to be isolated from the environment is actually causing not the TTS phenomenon but permanent threshold shift (PTS).

Download or read book An Exploration of Auditory Fatigue in Young School aged Children written by Kenneth Jay Gerhardt and published by . This book was released on 1973 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Loudness Effects Based Upon Auditory Fatigue written by Frank Biggs and published by . This book was released on 1957 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Auditory Fatigue written by Raoul Caussé and published by . This book was released on 1968 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Auditory Fatigue and Adaptation written by Sir Alexander William Gordon Ewing and published by . This book was released on 1935* with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Quantitative Account of the Course of Auditory Fatigue written by Alvin Graydon Wood and published by . This book was released on 1930 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Frequency Discrimination Following Auditory Fatigue written by John Frederick Brandt and published by . This book was released on 1965 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Central Factor in Pure Tone Auditory Fatigue written by Joel S. Wernick and published by . This book was released on 1963 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A long accumulation of psychophysical and physiological evidence indicates that auditory fatigue has its locus of effect in the cochlea; transfer studies with negative or questionable results, and studies of cochlear chemistry and potentials with positive results all lead to the same conclusion. However, Galambos's reports of inhibition through efferent stimulation taken together with his findings of changes in cochlear potentials corresponding to differences in 'attentiveness' provide a basis for testing the existence of a central factor operative in auditory fatigue. The present study was designed to evaluate the possibility that a listener's level of mental activity constitutes an adequate central factor. Subjects were presented with a 4000 cps, 40 dB SL or 90 dB SL tone for 3 minutes under conditions of (a) a mental task or (b) reverie. Pre- and post-fatigue thresholds were measured with a switched (0.2 sec on, 0.2 sec off) tone. For low level (40 dB) fatigue the frequency of the test tone was 4000 cps and for high level (90 dB) fatigue, 5656 cps. Subjects consistently showed greater temporary threshold shift and longer recovery time when the fatiguing tone was presented in the mental task condition. Results thus indicate a central factor in pure tone auditory fatigue. It is suggested that the degree of effect of a fatiguing tone is a function of the listener's degree of mental activity during stimulation. (Author).

Download or read book Cumulative Auditory Fatigue written by James F. Jerger and published by . This book was released on 1958 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cumulative effects of repeated fatigue-producing stimuli on threshold recovery time were explored as a function of the intensity of the fatiguing stimulus in 26 normal ears. Results demonstrated a cumulative effect on recovery time for the threshold at 4500 cps when the SPL of the 3000-CPS fatiguing tone equaled or exceeded 95 db. Functions relating cumulative effect to fatiguing intensity exhibited sharp breaks in the 100-105 db region, suggesting, in still another form, the critical intensity phenomenon so often demonstrated in other fatigue measures. Intercorrelations between both absolute and cumulative effects at different fatiguing intensities were weak, suggesting that the cumulative effects evoked by one level of fatiguing intensity may bear no predictive relation to the cumulative effects evoked by another level.