Neural correlates of the precedence effect in auditory evoked potentials

Damaschke, Jörg; Riedel, Helmut; Kollmeier, Birger

doi:10.1016/j.heares.2005.03.014

Cited by 20 publications

(33 citation statements)

References 35 publications

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“…First, amplitudes of auditory brainstem responses evoked by sequences of two impulses showed responses to the second to be unaffected by the first once the temporal separation exceeded 4-5 ms (Damaschke et al, 2005;Bianchi et al, 2013). This 5-ms window is consistent with computational modeling work of Xia et al (2010): simulated medial superior olive responses to lagging pulses at a cell's best ITD are unaffected by preceding pulses for echo delays longer than 5 ms. Because of these findings, there will be no effort in the current paper to model effects by considering cochlear interactions between leading and lagging pulses a la Hartung and Trahiotis (2001).…”

Section: Introductionsupporting

confidence: 79%

Lateralization of simulated sources and echoes differing in frequency based on interaural temporal differences

Dye

Boomer

Frankel

et al. 2016

The Journal of the Acoustical Society of America

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This study examined listeners' ability to process interaural temporal differences (ITDs) in one of two sequential sounds when the two differed in spectral content. A correlational analysis assessed weights given to ITDs of simulated source and echo pulses for echo delays of 8–128 ms for conditions in which responses were based on the source or echo, a 3000-Hz Gaussian (target) pulse. The other (distractor) pulse was spectrally centered at 1500, 2000, 3000, 4000, or 5000 Hz. Also measured were proportion correct and proportion of responses predicted from the weights. Regardless of whether the echo or source pulse served as the target, target weight, and proportion correct increased with increasing distractor frequency, consistent with low-frequency dominance [Divenyi, J. Acoust. Soc. Am. 91, 1078–1084 (1992)]. Effects of distractor frequency were observed at echo delays out to 128 ms when the source served as the target, but only out to 64 ms when the echo served as the target. At echo delays beyond 8 ms, recency effects were exhibited with higher proportions correct obtained for judgments based on the echo pulse than the source pulse.

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Section: Introductionsupporting

confidence: 79%

Lateralization of simulated sources and echoes differing in frequency based on interaural temporal differences

Dye

Boomer

Frankel

et al. 2016

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

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“…High-level, cognitive processes might also influence the precedence effect (Blauert et al, 1989;Clifton et al, 1994;Mccall et al, 1998;Freyman et al, 1991;Damaschke et al, 2005). These studies suggest that echo processing may depend on the listeners' prior listening experience and the resulting expectations about the sound-source position and the room acoustics.…”

Section: Discussionmentioning

confidence: 89%

The absence of spatial echo suppression in the echolocating bats Megaderma lyra and Phyllostomus discolor

Schuchmann¹,

Hübner²,

Wiegrebe³

2006

Journal of Experimental Biology

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SUMMARY Acoustic orientation most often takes place in echoic environments. The mammalian auditory system shows a variety of specializations to suppress misleading spatial information mediated by echoes. Psychophysically these specializations are summarized as the precedence effect. This study investigates how echolocating bats deal with multiple reflections of their sonar emissions from different spatial positions. In a two-alternative, forced choice paradigm, a study was made of the extent to which the echolocating bats Megaderma lyra and Phyllostomus discolor spontaneously suppress the spatial information of a second reflection of their sonar emission. The delay between the first and the second reflection ranged between 0 and 12.8 ms. In general, M. lyra (five individuals) and P. discolor(two individuals) did not suppress the spatial information of the second reflection of their sonar emission, whatever the delay. Only one M. lyra showed significant suppression for delays between 0.8 and 3.2 ms. However, this suppression could not be confirmed in an exact repetition of the experiment. The current data indicate that although bats may be able to suppress the spatial information of a second reflection, this is not their default mode of auditory processing. The reason for this exceptional absence of spatial echo suppression may lie in the shorter time constants of cochlear processing in the ultrasonic frequency range and the strong influence of cognitive components associated with the `precedence effect'.

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“…This positive peak (Pa) was reduced in amplitude when a sound was presented as a simulated reflection rather than in isolation. A second study reported psychophysical, ABR, and ERP measurements and concluded that the earliest evidence of the precedence effect in the ERP waveforms was the mismatch negativity (MMN) which peaked around 150 ms after the onset of the lag sound (Damaschke et al, 2005). However, neither of these studies recorded participant responses during or under precisely the same conditions as electrophysiological measurements.…”

Section: Introductionmentioning

confidence: 99%

Manipulations of listeners’ echo perception are reflected in event-related potentials

Sanders

Zobel²,

Freyman³

et al. 2011

The Journal of the Acoustical Society of America

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To gain information from complex auditory scenes, it is necessary to determine which of the many loudness, pitch, and timbre changes originate from a single source. Grouping sound into sources based on spatial information is complicated by reverberant energy bouncing off multiple surfaces and reaching the ears from directions other than the source's location. The ability to localize sounds despite these echoes has been explored with the precedence effect: Identical sounds presented from two locations with a short stimulus onset asynchrony (e.g., 1-5 ms) are perceived as a single source with a location dominated by the lead sound. Importantly, echo thresholds, the shortest onset asynchrony at which a listener reports hearing the lag sound as a separate source about half of the time, can be manipulated by presenting sound pairs in contexts. Event-related brain potentials elicited by physically identical sounds in contexts that resulted in listeners reporting either one or two sources were compared. Sound pairs perceived as two sources elicited a larger anterior negativity 100-250 ms after onset, previously termed the object-related negativity, and a larger posterior positivity 250-500 ms. These results indicate that the models of room acoustics listeners form based on recent experience with the spatiotemporal properties of sound modulate perceptual as well as later higherlevel processing.

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Neural correlates of the precedence effect in auditory evoked potentials

Cited by 20 publications

References 35 publications

Lateralization of simulated sources and echoes differing in frequency based on interaural temporal differences

Lateralization of simulated sources and echoes differing in frequency based on interaural temporal differences

The absence of spatial echo suppression in the echolocating bats Megaderma lyra and Phyllostomus discolor

Manipulations of listeners’ echo perception are reflected in event-related potentials

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