Temporal integration of monaural and dichotic frequency modulation

Palandrani, Katherine N.; Hoover, Eric C.; Stavropoulos, Trevor; Seitz, Aaron R.; Isarangura, Sittiprapa; Gallun, Frederick J.; Eddins, David A.

doi:10.31234/osf.io/269gp

Cited by 2 publications

(1 citation statement)

References 26 publications

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“…The higher rate used in the current study resulted in more cycles of modulation per stimulus presentation over a shorter period of time compared to the stimulus used by Grose and Mamo (2012b). Increasing the number of modulation cycles has been shown to improve FM detection thresholds in both monaural (Hartmann and Klein, 1980;Wallaert et al, 2018;Palandrani et al, 2020) and dichotic listening conditions (Palandrani et al, 2020). Grose and Mamo (2012b) reported mean dichotic FM detection thresholds of approximately 2 Hz for their group of older (65-77 years) listeners and approximately 0.8 Hz for their group of middle aged (43-57 years) listeners, for an estimated average threshold across groups of approximately 1.4 Hz.…”

Section: Effects Of Age and Hearing Sensitivity On Binaural Processingmentioning

confidence: 74%

Age-Related Deficits in Electrophysiological and Behavioral Measures of Binaural Temporal Processing

et al. 2020

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Binaural processing, particularly the processing of interaural phase differences, is important for sound localization and speech understanding in background noise. Age has been shown to impact the neural encoding and perception of these binaural temporal cues even in individuals with clinically normal hearing sensitivity. This work used a new electrophysiological response, called the interaural phase modulation-following response (IPM-FR), to examine the effects of age on the neural encoding of interaural phase difference cues. Relationships between neural recordings and performance on several behavioral measures of binaural processing were used to determine whether the IPM-FR is predictive of interaural phase difference sensitivity and functional speech understanding deficits. Behavioral binaural frequency modulation detection thresholds were measured to assess sensitivity to interaural phase differences while spatial release-from-masking thresholds were used to assess speech understanding abilities in spatialized noise. Thirty adults between the ages of 35 to 74 years with normal low-frequency hearing thresholds were used in this study. Data showed that older participants had weaker neural responses to the interaural phase difference cue and were less able to take advantage of binaural cues for speech understanding compared to younger participants. Results also showed that the IPM-FR was predictive of performance on the binaural frequency modulation detection task, but not on the spatial release-from-masking task after accounting the effects of age. These results confirm previous work that showed that the IPM-FR reflects age-related declines in binaural temporal processing and provide further evidence that this response may represent a useful objective tool for assessing binaural function. However, further research is needed to understand how the IPM-FR is related to speech understanding abilities.

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Section: Effects Of Age and Hearing Sensitivity On Binaural Processingmentioning

confidence: 74%

Age-Related Deficits in Electrophysiological and Behavioral Measures of Binaural Temporal Processing

et al. 2020

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Portable Automated Rapid Testing (PART) for auditory assessment: Validation in a young adult normal-hearing population

Larrea-Mancera

Stavropoulos

Hoover

et al. 2020

The Journal of the Acoustical Society of America

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This study aims to determine the degree to which Portable Automated Rapid Testing (PART), a freely available program running on a tablet computer, is capable of reproducing standard laboratory results. Undergraduate students were assigned to one of three within-subject conditions that examined repeatability of performance on a battery of psychoacoustical tests of temporal fine structure processing, spectro-temporal amplitude modulation, and targets in competition. The repeatability condition examined test/retest with the same system, the headphones condition examined the effects of varying headphones (passive and active noise-attenuating), and the noise condition examined repeatability in the presence of recorded cafeteria noise. In general, performance on the test battery showed high repeatability, even across manipulated conditions, and was similar to that reported in the literature. These data serve as validation that suprathreshold psychoacoustical tests can be made accessible to run on consumer-grade hardware and perform in less controlled settings. This dataset also provides a distribution of thresholds that can be used as a normative baseline against which auditory dysfunction can be identified in future work.

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Temporal integration of monaural and dichotic frequency modulation

Cited by 2 publications

References 26 publications

Age-Related Deficits in Electrophysiological and Behavioral Measures of Binaural Temporal Processing

Age-Related Deficits in Electrophysiological and Behavioral Measures of Binaural Temporal Processing

Portable Automated Rapid Testing (PART) for auditory assessment: Validation in a young adult normal-hearing population

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