Testing domain-general theories of perceptual awareness with auditory brain responses

Snyder, Joel S.; Yerkes, Breanne D.; Pitts, Michael

doi:10.1016/j.tics.2015.04.002

Cited by 34 publications

(29 citation statements)

References 12 publications

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“…In this study, a later P3b response was also larger for cases with detected compared with undetected changes. These N1 and P3b modulations may reflect perceptual awareness of the change and subsequent memory updating or other cognitive consequences of awareness, respectively . Another study by the same group used a different set of recognizable sounds and unrecognizable versions of the sounds but found no N1 modulation for either type of sound .…”

Section: Understanding Processing Of Realistic Auditory Scenesmentioning

confidence: 94%

“…A recent study, however, provided evidence that rhythmic brain activity is indeed important for auditory segregation of tone patterns (for additional commentary, see Ref. ). They used rhythmic patterns of transcranial electrical current stimulation directed through both auditory cortices that was either in phase or out of phase with an isochronous pattern of target tones embedded in background noise.…”

Section: Higher‐level Aspects Of Auditory Scene Analysismentioning

confidence: 99%

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Recent advances in exploring the neural underpinnings of auditory scene perception

Snyder

Elhilali

2017

Annals of the New York Academy of Sciences

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Studies of auditory scene analysis have traditionally relied on paradigms using artificial sounds—and conventional behavioral techniques—to elucidate how we perceptually segregate auditory objects or streams from each other. In the past few decades, however, there has been growing interest in uncovering the neural underpinnings of auditory segregation using human and animal neuroscience techniques, as well as computational modeling. This largely reflects the growth in the fields of cognitive neuroscience and computational neuroscience and has led to new theories of how the auditory system segregates sounds in complex arrays. The current review focuses on neural and computational studies of auditory scene perception published in the past few years. Following the progress that has been made in these studies, we describe (1) theoretical advances in our understanding of the most well-studied aspects of auditory scene perception, namely segregation of sequential patterns of sounds and concurrently presented sounds; (2) the diversification of topics and paradigms that have been investigated; and (3) how new neuroscience techniques (including invasive neurophysiology in awake humans, genotyping, and brain stimulation) have been used in this field.

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Section: Understanding Processing Of Realistic Auditory Scenesmentioning

confidence: 94%

Section: Higher‐level Aspects Of Auditory Scene Analysismentioning

confidence: 99%

Recent advances in exploring the neural underpinnings of auditory scene perception

Snyder

Elhilali

2017

Annals of the New York Academy of Sciences

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“…Additionally, animal models (in addition to human intracranial recordings and high-field fMRI [270]) might help to determine whether the putatively awareness-related surface-negative responses in AC, which correspond well with similar negativities in vision [25], reflect recurrent processing ( posited by several models as a critical processing mode for conscious perception [35,36,271]) either within auditory association cortex or between it and other brain areas. While this is suggested by their latency and by the fact that similar negativities in monkeys arise from superficial cortical layers [272], more work is needed, particularly in establishing NCC A experiments in non-human primates.…”

Section: Toward a Comprehensive Framework For Conscious Auditionmentioning

confidence: 99%

“…Owing to the relative paucity of NCC studies conducted outside the context of vision, such models are necessarily based on conscious visual experience and its putative neural correlates [10,24]. On the other hand, it is rarely explicitly acknowledged that such models might not apply in other modalities, making the auditory system an ideal test bed with which to examine such models [14,25].(a) Global-workspace theoryOne prominent neurally based model of conscious perception is global-workspace theory, or GWT [35]. Based on an earlier, exclusively cognitive theory [15], GWT posits that in order for sensory information to enter consciousness, it must be made available to a host of disparate cognitive systems (e.g.…”

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confidence: 99%

A roadmap for the study of conscious audition and its neural basis

Dykstra

Cariani

Gutschalk

2017

Phil. Trans. R. Soc. B

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One contribution of 15 to a theme issue 'Auditory and visual scene analysis'. Subject Areas: cognition, neuroscience, behaviourKeywords: audition, auditory scene analysis, conscious perception, neural correlates of consciousness, perceptual awareness Author for correspondence: Andrew R. Dykstra e-mail: andrew.dykstra@med.uni-heidelberg.de A roadmap for the study of conscious audition and its neural basis Andrew R. Dykstra 1 , Peter A. Cariani 2 and Alexander Gutschalk 1 1 Department of Neurology, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany 2 Hearing Research Center, Boston University, Boston, MA, USA ARD, 0000-0001-8075-6374How and which aspects of neural activity give rise to subjective perceptual experience-i.e. conscious perception-is a fundamental question of neuroscience. To date, the vast majority of work concerning this question has come from vision, raising the issue of generalizability of prominent resulting theories. However, recent work has begun to shed light on the neural processes subserving conscious perception in other modalities, particularly audition. Here, we outline a roadmap for the future study of conscious auditory perception and its neural basis, paying particular attention to how conscious perception emerges (and of which elements or groups of elements) in complex auditory scenes. We begin by discussing the functional role of the auditory system, particularly as it pertains to conscious perception. Next, we ask: what are the phenomena that need to be explained by a theory of conscious auditory perception? After surveying the available literature for candidate neural correlates, we end by considering the implications that such results have for a general theory of conscious perception as well as prominent outstanding questions and what approaches/techniques can best be used to address them.This article is part of the themed issue 'Auditory and visual scene analysis'. IntroductionHow subjective perceptual experience-i.e. conscious perception-emerges from patterns of brain activity is a fundamental question of modern neuroscience. Although relationships between neural activity and conscious perception have been pondered since the beginning of the mind-brain sciences [1][2][3][4][5][6], many have viewed the problem as scientifically intractable. However, employing increasingly powerful methods [7], recent years have seen a dramatic increase in studies pursuing the so-called neural correlates of consciousness, or NCC [8], defined as the 'the minimal set of neural events jointly sufficient for a specific conscious experience' [9] (e.g. the phenomenal experience of hearing a sound). This definition, in contrast with others that distinguish between the NCC and the NCCC (neural correlates of the contents of consciousness), subsumes both the 'preconditions' and content-specific processes associated with specific conscious percepts [10], acknowledging that all conscious experiences have content (though varying in richness [11,12], an idea also underscored by early auditory selective-a...

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“…The results ( Figure 1C) showed that it took less time for participants to notice the target sounds when the electrical current was delivered in phase with the sounds, suggesting that aligning the phase of brain activity with a stimulus facilitates sound segregation and target-in-noise detection. Interestingly, the precise phases of current that best facilitated detection corresponded to delays similar to that of brain responses correlated with sound segregation [14] and conscious auditory perception more generally [15].…”

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confidence: 84%

Sound Perception: Rhythmic Brain Activity Really Is Important for Auditory Segregation

Snyder

2015

Current Biology

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Testing domain-general theories of perceptual awareness with auditory brain responses

Cited by 34 publications

References 12 publications

Recent advances in exploring the neural underpinnings of auditory scene perception

Recent advances in exploring the neural underpinnings of auditory scene perception

A roadmap for the study of conscious audition and its neural basis

Sound Perception: Rhythmic Brain Activity Really Is Important for Auditory Segregation

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