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Saturday, July 25, 2020 | History

1 edition of The effects of varying intensity on the auditory time-error found in the catalog.

The effects of varying intensity on the auditory time-error

by John Anthony Bowland

  • 169 Want to read
  • 28 Currently reading

Published .
Written in English

    Subjects:
  • Perception,
  • Testing,
  • Time perception

  • The Physical Object
    Paginationiv, 49, [2] leaves.
    Number of Pages49
    ID Numbers
    Open LibraryOL25993987M
    OCLC/WorldCa13651312

    The effects of ELF electric fields on human reaction time in response to auditory or visual stimuli have been extensively studied, but the results have been inconsistent. 14, 27 Increased auditory or visual reaction times have been noted at thresholds ranging from V/m in a 3-Hz field 8 to 10 kV/m in a Hz field. 45 Decreased visual. This article is concerned with the auditory representation of sound intensity, and its perceptual correlate of loudness. Loudness is the primary perceptual correlate of physical sound intensity or strength, often described as the characteristic of sound ranging from very soft to very loud. It discusses intensity discrimination and the dynamic range of hearing, techniques for measuring loudness.

    Carhart, for example, described the importance of auditory training as part of the profession of audiology. 5 However, because the effectiveness of auditory training has been questioned and reimbursement for rehabilitative services has become more difficult, many clinics have shifted their focus to simply dispensing devices. For this reason.   The intervals were presented as auditory signals of fixed ( cycle) frequency but of varying intensities (20 to 60 dB). Two methods of measuring the perceived duration were employed, a direct estimate in csec and a comparison of the test signal with one of fixed duration ( csec) and intensity (40 dB).

      In simple auditory reaction time, Grice and Hunter () obtained a significant interaction between signal intensity and the manner of intensity manipulation-between or within subjects. In a reanalysis by more recently developed methods of variable criterion theory, estimates of criterion level have been obtained for each subject in each condition.   Hair cells of the cochlea in the inner ear are sensitive to the pressure fluctuations of the frequency (which is perceived as pitch) and intensity (perceived as loudness) of sound waves. Specialized neurons in the cochlear nucleus send this information to the auditory nerve by varying the timing patterns of their electrical signals.


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The effects of varying intensity on the auditory time-error by John Anthony Bowland Download PDF EPUB FB2

A number of studies investigating the relationship between VNS efficacy and intensity have found that increasing VNS intensity results in an inverted-U response. Pairing VNS with tone presentation drives plasticity in auditory cortex at moderate current intensities, but not at low or high intensities (Borland et al.,Loerwald et al Cited by: 9.

The effects of varying signal intensity on the perceptual organization of rhythmic auditory patterns The present study tested this hypothesis by observing the perceptual responses of listeners while varying the intensity of critical elements of unambiguous and ambiguous Auditory Scene Analysis: The Perceptual Organization of Sound (MIT Cited by: 2.

To control for multiple comparisons, a cluster analysis (Monte Carlo simulations w iterations; P varying intensity, varying distance, and constant stimulation) constrained to areas where the main effect (auditory stimulation vs. baseline) was significant (corrected P Cited by: The auditory brainstem response (ABR) testing is a useful tool to evaluate integrity of cochlea and central auditory pathway.

Since it does not require patient compliance, it can easily be performed especially on children and elderly whose hearing levels can not easily be determined by classical audiometric : M.

Sinan Yilmaz, The effects of varying intensity on the auditory time-error book Guven, Suleyman Cesur, Haldun Oguz. Design: Brief duration Hz auditory tone bursts varying in intensity at random from −5 to +45 dB from normative hearing level (nHL) in 10 dB steps were presented every to s when the subject was awake and reading a book and again during all-night by: A series of experiments investigated the effects of continuous broadband noise (ipsilateral) on wave V of the click‐evoked brainstem auditory evoked response (BAER).

In general, a broadband noise masker increases the latency and decreases the amplitude of wave V. Varying both click and noise intensity, it was found that noise levels above about 40 dB SPL increase the latency and decrease the.

For each stimulus condition the ABR was collected twice, with stimulus repetitions/wave. The stimuli used for the test ear were lOO-jus square wave rarefaction clicks presented at varying intensity levels ( dB nHTL) at a rate of 60/s to.

The effect of sound intensity on cortical activation maps has been a topic in multiple fMRI studies at least since (some early studies are Millen et al.,Strainer et al.,Jäncke et al., ), i.e., more or less since fMRI has been in use to investigate the human auditory system.

In this section, an overview is given about the. Effects of illumination on auditory threshold. PHYSIOL. BEHAV. 20(2)-- Auditory thresholds of four squirrel monkeys were examined with a 4 kHz tone in light and dark ambient sensory conditions. The results revealed that auditory sensitivity is higher in the light than in the dark.

To investigate the mechanism responsible for the auditory stimulus intensity effect, transcranial magnetic stimulation (TMS) was applied at various times during the simple RT interval (equivalent to 0, 30, 45, 60, and 75% of baseline RT) to examine changes in corticospinal excitability after a go-signal of varying intensity (60, 70, 80, or 90 dB).

When a masker at a frequency that is different from that of the target signal is added, and has the same temporally varying modulations in intensity, i.e., when the target signal and added masker are “co-modulated” in time, the two sounds are perceptually grouped and perceived as a single auditory image.

The effect of auditory background did not reach statistical significance (F = ) but diaBLP tended to increase when subjects listened to. Two studies have been conducted on the influence of the rate of auditory intensity change upon a subject's ability to discriminate that change.

In experiment I the stimulus intensity changed gradually through time. Complete psychophysical functions were obtained for four subjects at five rates of change between 2 and db/min. Rate manipulations can be used to study adaptation processes in the auditory nerve and brainstem.

For this reason, rate effects on the click-evoked auditory brainstem response (ABR) have been investigated in many mammals, including humans. The upward pitch shift depends on the rise or decay rate, the intensity, and the frequency.

The effect, which requires a nonlinearity in the auditory system, cannot be adequately explained by existing models of hearing. Control experiments on pitch matching for short tones of varying duration and varying intensity are described.

The effect of age cannot be attributed to reduced frequency selectivity, since auditory filters do not broaden with increasing age when absolute thresholds remain normal (Lutman et al.

; Peters and Moore ). Monaural TFS processing has also been assessed using the TFS1 test (Hopkins and Moore ; Moore and Sek ). This requires. Auditory distortions are often accompanied by other coinciding effects such as auditory hallucinations, auditory suppression, and auditory enhancement.

[2] [4] They are most commonly induced under the influence of moderate dosages of psychedelic compounds, [10] [11] [12] such as LSD. T1 - Informational-effects quantification of ‘hidden hearing loss’ using the information bottleneck method.

AU - Mucarquer, Juan. AU - Undurraga, Jaime. AU - McAlpine, David. PY - Y1 - N2 - Cochlear synaptopathy (CS) is a lesion characterised by abnormal synaptic activity between inner hair cells and auditory nerve fibres.

Neural Representation of Frequency Resolution in the Mouse Auditory Midbrain Behavioral and Neural Identification of Birdsong under Several Masking Conditions ity Representation Near-Threshold Auditory Evoked Fields and Potentials are In Line with the Weber-Fechner Law Brain Activation in Relation to Sound Intensity and.

This study investigated the effects of different exercise intensity levels on participants’ auditory reaction times. 24 undergraduate students (mean age = years; 58% male, 42% female) at the University of Wisconsin-Madison were randomly assigned to 1 of 3 groups in order to test the effects of exercise intensity on auditory reaction time.

Collaboration with other disciplines is strongly indicated when working with military Veterans, particularly those patients with histories of exposure to high-level noise, blasts, or head trauma and who report symptoms consistent with post-traumatic stress disorder.

Audiology should be a part of the interprofessional treatment team. Auditory problems are the most common service-connected.Performance-intensity functions with varying speech levels vs varying noise levels.

An investigation of the effects of audibility spectrum on speech recognition performance-intensity functions. Unpublished Hearing measurement—A book of readings (2nd ed.) (pp.

–).Transcranial electrical stimulation (tES) can adjust the membrane potential by applying a weak current on the scalp to change the related nerve activity. In recent years, tES has proven its value in studying the neural processes involved in human behavior.

The study of central auditory processes focuses on the analysis of behavioral phenomena, including sound localization, auditory pattern.