Imagined speech influences perceived loudness of sound

Tian, Xing; Ding, Nai; Teng, Xiangbin; Fan, Bin; Poeppel, David

doi:10.1038/s41562-018-0305-8

Cited by 44 publications

(44 citation statements)

References 57 publications

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“…The STG was commonly observed during musical imagery [60] and the activation of auditory imagery has been shown to extend to the HG [8]. The observation of HG during imagined singing in this study was consistent with the hypothesis that high task demand drives auditory estimation down to the primary sensory area [21]. The rSTS was only observed in imagined singing but not in listening conditions, which is consistent with previous findings [25], suggesting a possible specific functional role of STS in auditory imagery.…”

Section: Discussionsupporting

confidence: 91%

“…More importantly, in the conjunction analysis, the significant phase coherence in listening and imagery conditions overlapped over the primary auditory cortex and extended to the posterior part of the insular cortex and in the anterior part of STG ( Fig 2G). These overlaps suggest the motor-to-sensory transformation during imagery can induce similar auditory representation as in perception [21].…”

Section: Resultsmentioning

confidence: 88%

“…This motor-to-sensory transformation has been demonstrated in speech production, learning and control [14][15][16][17][18], and has been extended to speech imagery [3,[19][20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 92%

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Mental operations in rhythm: motor-to-sensory transformation mediates imagined singing

Luo

Tian

2019

Preprint

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What enables us to think verbally? We hypothesized that the interaction between motor and sensory systems induced speech representation without external stimulation or overt articulation. This motor-to-sensory transformation formed the neural basis that enabled us to think verbally. Analogous to the frequency tracking of neural responses to auditory stimuli, we asked participants to imagine singing lyrics of famous songs rhythmically while their neural electro-magnetic signals were recorded using magnetoencephalography (MEG). We found that when participants imagined with less temporal variation, the neural oscillation at the delta band (same frequency band as the rhythm in the songs) showed more consistent phase coherence across trials. This neural phase tracking of imagined singing was observed in a frontal-parietal-temporal networkthe proposed motor-to-sensory transformation pathway, including inferior frontal gyrus (IFG), insula, premotor, intra-parietal sulcus (IPS), temporal-parietal junction (TPJ), primary auditory cortex, and superior temporal gyrus and sulcus (STG & STS). These results suggest that neural oscillations can entrain the rhythm of our mental activity. The coherent activation in the motor-tosensory transformation neural network mediates the internal construction of perceptual representation and forms the neural computation foundation for inner speech during verbal thinking.

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Section: Discussionsupporting

confidence: 91%

Section: Resultsmentioning

confidence: 88%

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Mental operations in rhythm: motor-to-sensory transformation mediates imagined singing

Luo

Tian

2019

Preprint

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“…Cognitively, higher-level cognitive functions, such as selfmonitoring, require motor signals to suppress the feedback to indicate the consequences of self-induced actions (Sarah-Jayne Blakemore & Decety, 2001;Desmurget et al, 2009;Grush, 2004). Whereas for working memory and mental imagery, positive neural representations are needed to establish the mental images (Ma & Tian, 2019;Mary Zarate et al, 2015;Tian, 2010;Tian et al, 2018Tian et al, , 2016Tian & Poeppel, 2012, 2013. Clinically, the loss of contact with the external world in psychosis has been assumed with the malfunction of agency via broken inhibitory functions from the motor system (Ford & Mathalon, 2004).…”

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confidence: 99%

Corollary Discharge versus Efference Copy: Distinct Neural Signals in Speech Preparation Differentially Modulate Auditory Responses

Zhu²,

Tian³

2020

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Actions influence sensory processing in a complex way to shape behavior. For example, it has been hypothesized that during actions, a copy of motor signals-termed corollary discharge or efference copy-can be transmitted to sensory regions and modulate perception. Such motor-to-sensory transformation has been evident among animal species and is extended to human speech production and control. The inhibitory function of the motor copies has been supported by the suppression of sensory responses during action execution. However, the sole inhibitory function is challenged by mixed empirical observations as well as multifaceted computational demands for behaviors. Theories have been proposed that corollary discharge and efference copy may be two separate functional forms that are generated at different stages of intention, preparation, and execution during actions. We tested these theories using speech in which we can precisely control and quantify the course of action. Specifically, we hypothesized that the content in the motor signals available at distinct stages of speech preparation determined the nature of signals (corollary discharge vs. efference copy) and constrained their modulatory functions on auditory processing. In three electroencephalography (EEG) experiments using a novel delayed articulation paradigm, we found that preparation without linguistic contents suppressed auditory responses to all speech sounds, whereas preparing to speak a syllable selectively enhanced the auditory responses to the prepared syllable. A computational model demonstrated that a bifurcation of motor signals could be a potential algorithm and neural implementation to achieve the distinct functions in the motor-to-sensory transformation. These consistent results suggest that distinct motor signals are generated in the motor-to-sensory transformation and integrated with sensory input to modulate perception.

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“…To achieve such a capacity, the human brain is equipped with an efficient neural architecture that is dedicated to bottom-up processing of perceived speech information, from the low-level acoustics, to the phoneme, syllable, and sentence levels (Pisoni and Luce 1987;DeWitt and Rauschecker 2012;Friederici 2012;Hickok 2012;Verhulst et al 2018). In recent years, increasing evidence has also suggested that human speech comprehension is an active process that involves top-down predictions (Rao and Ballard 1999;Federmeier 2007;Arnal et al 2011;Hickok et al 2011;Kutas and Federmeier 2011;Fries 2015;Tian et al 2018). In the cocktail party scenario, it is believed that a listener should continuously predict what their attended speaker is going to say next in order to efficiently understand the corresponding speech (Cherry 1953;Ding and Simon 2012;Zion Golumbic, Cogan, et al 2013;O'Sullivan et al 2015;Bednar and Lalor 2020).…”

Section: Introductionmentioning

confidence: 99%

Preparatory delta phase response is correlated with naturalistic speech comprehension performance

Hong

Nolte

et al. 2019

Preprint

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18While human speech comprehension is thought to be an active process that involves 19 top-down predictions, it remains unclear how predictive information is used to prepare 20 for the processing of upcoming speech information. We aimed to identify the neural 21 signatures of preparatory processing of upcoming speech. Participants selectively 22 31 32 Keywords 33 preparatory processing, attention, speech comprehension, electroencephalogram, 34 temporal response function 35 36 37 2

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Imagined speech influences perceived loudness of sound

Cited by 44 publications

References 57 publications

Mental operations in rhythm: motor-to-sensory transformation mediates imagined singing

Mental operations in rhythm: motor-to-sensory transformation mediates imagined singing

Corollary Discharge versus Efference Copy: Distinct Neural Signals in Speech Preparation Differentially Modulate Auditory Responses

Preparatory delta phase response is correlated with naturalistic speech comprehension performance

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