The importance of semantics in auditory representations

Gregg, Melissa K.; Samuel, Arthur G.

doi:10.3758/app.71.3.607

Cited by 45 publications

(61 citation statements)

References 49 publications

(70 reference statements)

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“…In the auditory domain, Gregg and Samuel (2009) have shown that abstract identity information seems to be encoded preferentially, as compared with intricate physical detail, consistent with the reverse hierarchy theory (Hochstein & Ahissar, 2002). In this experiment, within-category changes (e.g., a large dog barking changing to a small dog barking) were missed more often than between-category changes (e.g., a large dog barking changing to a piano tune).…”

Section: Comparing Change Deafness and Change Blindnesssupporting

confidence: 50%

Memory for sound, with an ear toward hearing in complex auditory scenes

Snyder

Gregg

2011

Atten Percept Psychophys

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An area of research that has experienced recent growth is the study of memory during perception of simple and complex auditory scenes. These studies have provided important information about how well auditory objects are encoded in memory and how well listeners can notice changes in auditory scenes. These are significant developments because they present an opportunity to better understand how we hear in realistic situations, how higher-level aspects of hearing such as semantics and prior exposure affect perception, and the similarities and differences between auditory perception and perception in other modalities, such as vision and touch. The research also poses exciting challenges for behavioral and neural models of how auditory perception and memory work.

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Section: Comparing Change Deafness and Change Blindnesssupporting

confidence: 50%

Memory for sound, with an ear toward hearing in complex auditory scenes

Snyder

Gregg

2011

Atten Percept Psychophys

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“…This notion is also consistent with Gregg and Samuel (2009), who found that manipulation of simple acoustic properties or sematic similarity could significantly influence change errors; specifically, reducing similarity reduces the likelihood of errors. One of the novelties and strengths in the present study was the large number of combinations of the sound to be changed (i.e., added or removed) and background sounds.…”

Section: Discussionsupporting

confidence: 87%

Change deafness for real spatialized environmental scenes

et al. 2017

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The everyday auditory environment is complex and dynamic; often, multiple sounds co-occur and compete for a listener’s cognitive resources. ‘Change deafness’, framed as the auditory analog to the well-documented phenomenon of ‘change blindness’, describes the finding that changes presented within complex environments are often missed. The present study examines a number of stimulus factors that may influence change deafness under real-world listening conditions. Specifically, an AX (same-different) discrimination task was used to examine the effects of both spatial separation over a loudspeaker array and the type of change (sound source additions and removals) on discrimination of changes embedded in complex backgrounds. Results using signal detection theory and accuracy analyses indicated that, under most conditions, errors were significantly reduced for spatially distributed relative to non-spatial scenes. A second goal of the present study was to evaluate a possible link between memory for scene contents and change discrimination. Memory was evaluated by presenting a cued recall test following each trial of the discrimination task. Results using signal detection theory and accuracy analyses indicated that recall ability was similar in terms of accuracy, but there were reductions in sensitivity compared to previous reports. Finally, the present study used a large and representative sample of outdoor, urban, and environmental sounds, presented in unique combinations of nearly 1000 trials per participant. This enabled the exploration of the relationship between change perception and the perceptual similarity between change targets and background scene sounds. These (post hoc) analyses suggest both a categorical and a stimulus-level relationship between scene similarity and the magnitude of change errors.

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“…Therefore, auditory streams did not only differ in their physical properties but also carried different semantic information. As shown by Gregg and Samuel (2009), stimulus semantics play an important role in both auditory object encoding and change detection. To avoid interactions between semantic and acoustic cues, we used here a much simpler auditory setting, in which individual streams lacked any higher-order semantic information and only differed in pitch, rhythm, and sound source location.…”

Section: Stimulimentioning

confidence: 97%

Segregating the Neural Correlates of Physical and Perceived Change in Auditory Input using the Change Deafness Effect

Puschmann

Weerda²,

Klump³

et al. 2013

Journal of Cognitive Neuroscience

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Psychophysical experiments show that auditory change detection can be disturbed in situations in which listeners have to monitor complex auditory input. We made use of this change deafness effect to segregate the neural correlates of physical change in auditory input from brain responses related to conscious change perception in an fMRI experiment. Participants listened to two successively presented complex auditory scenes, which consisted of six auditory streams, and had to decide whether scenes were identical or whether the frequency of one stream was changed between presentations. Our results show that physical changes in auditory input, independent of successful change detection, are represented at the level of auditory cortex. Activations related to conscious change perception, independent of physical change, were found in the insula and the ACC. Moreover, our data provide evidence for significant effective connectivity between auditory cortex and the insula in the case of correctly detected auditory changes, but not for missed changes. This underlines the importance of the insula/anterior cingulate network for conscious change detection.

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The importance of semantics in auditory representations

Cited by 45 publications

References 49 publications

Memory for sound, with an ear toward hearing in complex auditory scenes

Memory for sound, with an ear toward hearing in complex auditory scenes

Change deafness for real spatialized environmental scenes

Segregating the Neural Correlates of Physical and Perceived Change in Auditory Input using the Change Deafness Effect

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