Meaningful Speech Research Articles

Head-orienting behaviors during simultaneous speech detection and localization.

Head movement plays a vital role in auditory processing by contributing to spatial awareness and the ability to identify and locate sound sources. Here we investigate head-orienting behaviors using a dual-task experimental paradigm to measure: (a) localization of a speech source; and (b) detection of meaningful speech (numbers), within a complex acoustic background. Ten younger adults with normal hearing and 20 older adults with mild-to-severe sensorineural hearing loss were evaluated in the free field on two head-movement conditions: (1) head fixed to the front and (2) head moving to a source location; and two context conditions: (1) with audio only or (2) with audio plus visual cues. Head-tracking analyses quantified the target location relative to head location, as well as the peak velocity during head movements. Evaluation of head-orienting behaviors revealed that both groups tended to undershoot the auditory target for targets beyond 60° in azimuth. Listeners with hearing loss had higher head-turn errors than the normal-hearing listeners, even when a visual location cue was provided. Digit detection accuracy was better for the normal-hearing than hearing-loss groups, with a main effect of signal-to-noise ratio (SNR). When performing the dual-task paradigm in the most difficult listening environments, participants consistently demonstrated a wait-and-listen head-movement strategy, characterized by a short pause during which they maintained their head orientation and gathered information before orienting to the target location.

Characterizing correlations in partial credit speech recognition scoring with beta-binomial distributions.

Partial credit scoring for speech recognition tasks can improve measurement precision. However, assessing the magnitude of this improvement with partial credit scoring is challenging because meaningful speech contains contextual cues, which create correlations between the probabilities of correctly identifying each token in a stimulus. Here, beta-binomial distributions were used to estimate recognition accuracy and intraclass correlation for phonemes in words and words in sentences in listeners with cochlear implants (N = 20). Estimates demonstrated substantial intraclass correlation in recognition accuracy within stimuli. These correlations were invariant across individuals. Intraclass correlations should be addressed in power analysis of partial credit scoring.

Single-neuronal elements of speech production in humans

Humans are capable of generating extraordinarily diverse articulatory movement combinations to produce meaningful speech. This ability to orchestrate specific phonetic sequences, and their syllabification and inflection over subsecond timescales allows us to produce thousands of word sounds and is a core component of language1,2. The fundamental cellular units and constructs by which we plan and produce words during speech, however, remain largely unknown. Here, using acute ultrahigh-density Neuropixels recordings capable of sampling across the cortical column in humans, we discover neurons in the language-dominant prefrontal cortex that encoded detailed information about the phonetic arrangement and composition of planned words during the production of natural speech. These neurons represented the specific order and structure of articulatory events before utterance and reflected the segmentation of phonetic sequences into distinct syllables. They also accurately predicted the phonetic, syllabic and morphological components of upcoming words and showed a temporally ordered dynamic. Collectively, we show how these mixtures of cells are broadly organized along the cortical column and how their activity patterns transition from articulation planning to production. We also demonstrate how these cells reliably track the detailed composition of consonant and vowel sounds during perception and how they distinguish processes specifically related to speaking from those related to listening. Together, these findings reveal a remarkably structured organization and encoding cascade of phonetic representations by prefrontal neurons in humans and demonstrate a cellular process that can support the production of speech.

How does realistic classroom noise affect auditory selective attention?

In the past years, more and more effort has been made to bring the reality in the lab to investigate cognitive performance in a close-to real life manner and, thus, increase the validity of current research. A first step towards being ecologically valid is using a dynamic binaural reproduction, which offers an accurate representation and allows the participants to engage in the acoustic scene. In a study on noise effects regarding the auditory selective attention of children, Loh et al. 2021 found that children were impaired by noise, while adults remained unaffected. However, they used white noise at a comparably low signal-to-noise ratio. To investigate the impact of a realistic scenario, the current work investigated a fluctuating realistic classroom noise using typical noise sources such as writing and the movement of chairs. Additionally, semantically meaningful speech was added as an attention capturing noise source. To get first insights into the effects of this realistic noise, a pilot study was conducted with adult participants in a virtual classroom scene.

Sentential Contextual Facilitation of Auditory Word Processing Builds Up during Sentence Tracking.

While listening to meaningful speech, auditory input is processed more rapidly near the end (vs. beginning) of sentences. Although several studies have shown such word-to-word changes in auditory input processing, it is still unclear from which processing level these word-to-word dynamics originate. We investigated whether predictions derived from sentential context can result in auditory word-processing dynamics during sentence tracking. We presented healthy human participants with auditory stimuli consisting of word sequences, arranged into either predictable (coherent sentences) or less predictable (unstructured, random word sequences) 42-Hz amplitude-modulated speech, and a continuous 25-Hz amplitude-modulated distractor tone. We recorded RTs and frequency-tagged neuroelectric responses (auditory steady-state responses) to individual words at multiple temporal positions within the sentences, and quantified sentential context effects at each position while controlling for individual word characteristics (i.e., phonetics, frequency, and familiarity). We found that sentential context increasingly facilitates auditory word processing as evidenced by accelerated RTs and increased auditory steady-state responses to later-occurring words within sentences. These purely top-down contextually driven auditory word-processing dynamics occurred only when listeners focused their attention on the speech and did not transfer to the auditory processing of the concurrent distractor tone. These findings indicate that auditory word-processing dynamics during sentence tracking can originate from sentential predictions. The predictions depend on the listeners' attention to the speech, and affect only the processing of the parsed speech, not that of concurrently presented auditory streams.

Cognitive performance in open-plan office acoustic simulations: Effects of room acoustics and semantics but not spatial separation of sound sources

The irrelevant sound effect (ISE) characterizes short-term memory performance impairment during irrelevant sounds relative to quiet. Irrelevant sound presentation in most laboratory-based ISE studies has been rather limited to represent complex scenarios including open-plan offices (OPOs) and not many studies have considered serial recall of heard information. This paper investigates ISE using an auditory-verbal serial recall task, wherein performance was evaluated for relevant factors in simulating OPO acoustics: the irrelevant sounds including the semanticity of speech, reproduction methods over headphones, and room acoustics. Results (Experiments 1 and 2) show that ISE was exhibited in most conditions with anechoic (irrelevant) nonspeech sounds with/without speech, but the effect was substantially higher with meaningful speech compared to foreign speech, suggesting a semantic effect. Performance differences in conditions with diotic and binaural reproductions were not statistically robust, suggesting limited role of spatial separation of sources. In Experiment 3, statistically robust ISE were exhibited for binaural room acoustic conditions with mid-frequency reverberation times, T30 (s) = 0.4, 0.8, 1.1, suggesting cognitive impairment regardless of sound absorption representative of OPOs. Performance differences in T30 = 0.4 s relative to T30 = 0.8 and 1.1 s conditions were statistically robust. This emphasizes the benefits for cognitive performance with increased sound absorption, reinforcing extant room acoustic design recommendations. Performance differences in T30 = 0.8 s vs. 1.1 s were not statistically robust. Collectively, these results suggest that certain findings from ISE studies with idiosyncratic acoustics may not translate well to complex OPO acoustic environments.

The Time of the Migrant

The Time of the Migrant

Bye-Bye Bunny: Place and Manner Sequences in Children's C1VC2V-Shaped Words.

Place and manner of articulation in American English-learning children's salient consonant-vowel-consonant-vowel (C1VC2V) target words (e.g., baby, bunny, and cookie) were compared with their actual productions of these words. We hypothesized that target words with repeated place and/or manner characteristics in C1VC2V consonant sequences would be matched in children's actual productions more frequently than target words with variegated place and manner sequences. This hypothesis was based on a proposal that children use available production system capacities to produce salient word forms derived from perceptual input on those word forms. Place and manner sequences were analyzed in 2,092 tokens of C1VC2V target words produced by 18 typically developing children in the single-word period. All data were from these children's spontaneous functional speech in a familiar speaking context. Both target word forms and actual child productions of those targets were analyzed. Results indicated that C1VC2V word target sequences predominantly consisted of repetitions in both place and manner of articulation (e.g., labial-labial, stop-stop). Targets with repetitions of consonant sequences were matched more frequently than targets with variegated sequences for both place and manner (e.g., labial-coronal, stop-nasal) in these children's actual productions. Results also indicated that C1VC2V target words beginning with a labial consonant (e.g., baby, bunny, and piggy) were matched in children's actual productions more frequently than words with coronal or dorsal consonant onsets (e.g., daddy and cookie). In C1VC2V word forms, occurring in early output, children's actual productions matched their target word sequences when the words consisted of repeated sequences in both place and manner. These results suggest that salient target words with repeated sequences may help children support increases in their repertoire of meaningful vocalizations during the transition from babbling to meaningful speech.

Noise-Vocoded Sentence Recognition and the Use of Context in Older and Younger Adult Listeners.

When listening to speech under adverse conditions, older adults, even with "age-normal" hearing, face challenges that may lead to poorer speech recognition than their younger peers. Older listeners generally demonstrate poorer suprathreshold auditory processing along with aging-related declines in neurocognitive functioning that may impair their ability to compensate using "top-down" cognitive-linguistic functions. This study explored top-down processing in older and younger adult listeners, specifically the use of semantic context during noise-vocoded sentence recognition. Eighty-four adults with age-normal hearing (45 young normal-hearing [YNH] and 39 older normal-hearing [ONH] adults) participated. Participants were tested for recognition accuracy for two sets of noise-vocoded sentence materials: one that was semantically meaningful and the other that was syntactically appropriate but semantically anomalous. Participants were also tested for hearing ability and for neurocognitive functioning to assess working memory capacity, speed of lexical access, inhibitory control, and nonverbal fluid reasoning, as well as vocabulary knowledge. The ONH and YNH listeners made use of semantic context to a similar extent. Nonverbal reasoning predicted recognition of both meaningful and anomalous sentences, whereas pure-tone average contributed additionally to anomalous sentence recognition. None of the hearing, neurocognitive, or language measures significantly predicted the amount of context gain, computed as the difference score between meaningful and anomalous sentence recognition. However, exploratory cluster analyses demonstrated four listener profiles and suggested that individuals may vary in the strategies used to recognize speech under adverse listening conditions. Older and younger listeners made use of sentence context to similar degrees. Nonverbal reasoning was found to be a contributor to noise-vocoded sentence recognition. However, different listeners may approach the problem of recognizing meaningful speech under adverse conditions using different strategies based on their hearing, neurocognitive, and language profiles. These findings provide support for the complexity of bottom-up and top-down interactions during speech recognition under adverse listening conditions.

المستوى التركيبي في قصيدة أفريقيا أرضنا لداود عبد الباقي (دراسة دلالية نحوية)

The structure is joining a vocabulary to another, and there are three types of Arabic vocabulary: Ism (Noun), Fi’l (Verb) and Ḥarf (Preposition), and among the different types of Arabic structures is predicate structure which forms the meaningful speech that is meant in this research. Nominal sentence consists of a noun and a noun while actual sentence consists of a verb and a noun and each of these two sentences has rules, patters, purposes, and meanings. This research will study the two sentences in Dr. Dāwūd ‘Abd al-Bāqī Muḥammad’s poem entitled (The Structural level in the Poem “Africa Is Our Land” by Dāwūd ‘Abd al-Bāqī – A Grammatical Semantic Study). The study aims to reveal what the poem was restricted to among the special structural rules and grammatical patters. This research consists of an introduction containing aims, objectives, problem, and plan of the study, and a preface containing the introduction of the poet and presentation of the poem, and two chapters; the first chapter is nominal sentence, and the second chapter is actual sentence, followed by a conclusion containing the most important results and recommendations. The researcher used descriptive analytical method in the study. Keywords: structural level, Africa, poem, grammatical semantic

Common Ground or Double Bind? The Possibility of Dialogue in Plato’s Crito

Much recent scholarship on Plato’ Crito has revolved around the controversy about the relationship and possible compatibility between the arguments Socrates gives in his own person (SocratesS) and those he gives in the person of the Laws (SocratesL). By contrast, the relation between the arguments given by SocratesL and those given by Crito continues to be seen as uncontroversial: by the end of the dialogue, commentators agree, Crito has no choice but to concede to the force of SocratesL’s arguments. Against this traditional reading, this paper will argue not only that SocratesL’s arguments fail to secure Crito’s agreement, but also that two characters’ attempts to communicate end at an impasse that seems to leave little room for meaningful shared discourse –and may even undermine Crito’s belief in the possibility of meaningful speech. My interpretation is informed by Socrates’ account (at 49c9-e3) of the need for and nature of a “common ground” as a requisite for genuine dialogue. This passage, I argue, challenges the traditional analysis of Crito as the representative of a particular value system or a particular “type”, demanding, instead, a consideration of the effect of Socrates’ arguments upon Crito in light of a more robust view of the latter’s perspective. Such a reconsideration has consequences not only for our appreciation of the dramatic structure of the dialogue, but also for how we understand one of the dialogue’s central, if underexplored, themes: the belief in a shared logos and the psychagogic necessity and perils of testing that belief.

Rethreading the Fabric of Mystery: Thinking Myth, Counter-Myth, and Christian Theology With Hortense Spillers

Abstract Hortense Spillers asserts the imperative for black writers to reconfigure the languages they inherit. One way of doing so is to craft counter-myths against dominative mythologies. Spillers casts myth as an integration of form and concept which overdetermines the significance of what it is used to talk about. One crucial effect of America’s racialising mythos has been to deny black women the ability to determine that significance. She then describes how this mythos is crafted through a double wounding that creates at least two ‘interstices’—first between home and market, then between blackness and humanity—which are covered up by mythological terms. Finally, Spillers shows how counter-mythologies can be crafted by speaking from within these interstices to reconfigure the conditions of possibility governing meaningful speech, taking the 19th- century African-American preaching tradition as her example. The article concludes by reflecting on what it might mean to practice Christian theology as counter-mythology in light of Spillers’ work through a reading of Edwidge Danticat’s The Dew Breaker.

Multidisciplinary Early Intervention in a Child with Autism and Childhood Apraxia of Speech

Background: Childhood apraxia of speech (CAS) is a neurological pediatric speech sound disorder, in which the precision and consistency of movements underlying speech are impaired in the absence of neuromuscular deficits. It is a common comorbidity in autism spectrum disorder (ASD) and requires detailed analysis to identify the typical errors in speech. Clinical Description: A 25-month-old boy presented with speech delay. The evaluation revealed an impaired absence of meaningful speech, impaired nonverbal communication and social skills, repetitive atypical behavior, and sensory issues with normal hearing. Although autism was suspected, the diagnosis could not be established, and intervention was started based on strengths and weaknesses. There was minimal improvement and discordance between receptive and expressive language was noted. Manifestations evolved over 15 months until a diagnosis of ASD was established by standard protocol. CAS was diagnosed at almost 4 years when a few meaningful words had developed and errors in oral movements, articulation, and phonological development were identified. Management and Outcome: Initially, the child received multidisciplinary management customized according to the strengths, weaknesses, and needs of the child. There was minimal improvement in communication, social interaction, and overall functioning. Identification of autism and slight changes in intervention did not bring about any remarkable changes. Once CAS was identified, and the focus of management changed there was a remarkable improvement in speech, and mild improvement in other aspects. Conclusion: Nonverbal or minimally verbal children with autism should be evaluated for CAS, especially if there is discordance between expressive and receptive language.

Central auditory processing in bilinguals

Background and Aim: The majority of the world’s population is bilingual. Bilingualism is a form of sensory enrichment that translates to gains in cognitive abilities; these cognitive gains in attention and memory are known to modulate subcortical processing of auditory stimuli. Sec­ond language acquisition has a broad impact on various psychological, cognitive, memory, and linguistic processes. Central auditory processing (CAP) is the perceptual processing of auditory information. Due to its importance in bilingu­alism, this study aimed to review the CAP of bilinguals. Recent Findings: The CAP was studied in three areas: dichotic listening, temporal processing, and speech in noise perception. Regarding dicho­tic listening, studies have shown that bilinguals have better performance in staggered spondaic word (SSW) test, consonant-vowel dichotic test, dichotic digits test (DDT), and disyllable dichotic test than monolinguals, although similar results have also been reported in SSW and DDT. Reg­arding temporal processing, the results of bilin­guals do not differ from those of monolinguals, although in some cases, it is better in bilinguals. Regarding speech in noise perception, the results between bilinguals and monolinguals are varied depending on the amount of linguistic infor­mation available in the stimuli. Conclusion: Bilingualism has a positive effect on dichotic processing, no effect on temporal processing, and varied effect on speech in noise perception. Bilinguals have poor performance using meaningful speech and better performance using meaningless speech. Keywords: Central auditory processing; bilingual; dichotic listening; temporal processing; speech in noise perception

Altered maturation and atypical cortical processing of spoken sentences in autism spectrum disorder.

Autism spectrum disorder (ASD) is associated with widespread receptive language impairments, yet the neural mechanisms underlying these deficits are poorly understood. Neuroimaging has shown that processing of socially-relevant sounds, including speech and non-speech, is atypical in ASD. However, it is unclear how the presence of lexical-semantic meaning affects speech processing in ASD. Here, we recorded magnetoencephalography data from individuals with ASD (N = 22, ages 7-17, 4 females) and typically developing (TD) peers (N = 30, ages 7-17, 5 females) during unattended listening to meaningful auditory speech sentences and meaningless jabberwocky sentences. After adjusting for age, ASD individuals showed stronger responses to meaningless jabberwocky sentences than to meaningful speech sentences in the same left temporal and parietal language regions where TD individuals exhibited stronger responses to meaningful speech. Maturational trajectories of meaningful speech responses were atypical in temporal, but not parietal, regions in ASD. Temporal responses were associated with ASD severity, while parietal responses were associated with aberrant involuntary attentional shifting in ASD. Our findings suggest a receptive speech processing dysfunction in ASD, wherein unattended meaningful speech elicits abnormal engagement of the language system, while unattended meaningless speech, filtered out in TD individuals, engages the language system through involuntary attention capture.

L’acte manqué dans La Cantatrice chauve : un discours réussi

"The Parapraxis in The Bald Soprano: a Successful Speech. This paper is about Parapraxis in the Cantatrice chauve, which Ionesco associates with politics. The unconscious knowledge of the Cantatrice chauve (The Bald Soprano) is the knowledge of comedy and tragedy; it is a form of knowledge which leads man towards an empty word which can no longer be articulated in meaningful speech. The nagging antinomies of common life emerge in the background. There is an endless dialectic that crosses time and history, life and death, joy and pain. There is an unsolved conflict that the Cantatrice chauve holds together, thus repeating the trauma of separation and the breakdown of community ties. The tragedy of language is that you can only live in a subjective way. It is a communication which affirms the absence of communication, opening up the tragicomic horizon of language and disintegrating the power which underlies the language of communication. Keywords: parapraxis, speech, language, communication, knowledge, enigma. "

The susceptibility of compound remote associate problems to disruption by irrelevant sound: a Window onto the component processes underpinning creative cognition?

ABSTRACT Controversy exists regarding the processes involved in creative thinking with the Remote Associates Test (RAT) and the Compound Remote Associates Test (CRAT). We report three experiments that aimed to shed light on the component processes underpinning CRAT performance by using the mere presence of task-irrelevant sound as a key theoretical tool. Experiments 1 and 2 revealed that CRAT performance was impaired relative to a quiet condition by the presence of sequences of changing letters and tones, respectively. In both experiments a non-changing sound (a repeated letter or a repeated tone) produced no disruption relative to quiet. Experiment 3 established that additional disruption was engendered by having to ignore meaningful speech as compared to meaningless speech. These experiments demonstrate that both semantic activation and subvocalisation are important determinants of successful creative thinking with CRAT problems. We suggest that semantic activation underpins solution-generation processes whereas subvocalisation underpins solution-evaluation processes.

Elementary school children’s speech skills in interdisciplinary ICT communication

An analysis of the state of pedagogical practice and scientific and methodological literature speaks of shortcomings in solving the problem of the formation of elementary schoolchildren’s speech skills. This article is devoted to the formation of elementary schoolchildren's speech skills in interdisciplinary communication. The purpose of our experimental work is to verify the effectiveness of our methodology for the sustainable of speech skills in interdisciplinary communication. In preparation for the experimental work, the following objectives were set; to identify the level of formation of speech skills (motivational, informative, reflective), development of a complex of diagnostic methods: observation, questionnaires, diagnostic methods, assessment, self-esteem, etc., on the basis of the data obtained to determine the level of formation of speech skills in interdisciplinary ICT communication. Therefore, the aim of our study is to analyze the state of formation of elementary schoolchildren’s speech skills in interdisciplinary communication. The theoretical significance of the study allows clarifying knowledge on the issue of the formation of speech skills; practical significance lies in the presentation and testing of a set of productive exercises aimed at developing learners' speech skills in interdisciplinary communication. According to the developed diagnostic technique, the formation of speech skills in interdisciplinary communication consists of three components: motivational, substantive and reflective. Based on these components, indicators and levels characterizing the formation of elementary schoolchildren’s speech skills in interdisciplinary communication are distinguished. During the study, the results of a verifying, forming and control experiment were presented. According to the study, we can say that it is necessary to pay attention to the development of meaningful speech, because it is for this indicator that most children are at a low level of formation. On the whole, our study proved that systematic work is needed to form elementary schoolchildren’s speech skills. Keywords: speech skills, interdisciplinary communication, integration, elementary school, formation, criteria, indicators, levels.

Goal-Directed Exploration for Learning Vowels and Syllables: A Computational Model of Speech Acquisition

Infants learn to speak rapidly during their first years of life, gradually improving from simple vowel-like sounds to larger consonant-vowel complexes. Learning to control their vocal tract in order to produce meaningful speech sounds is a complex process which requires to learn the relationship between motor and sensory processes. In this paper, a computational framework is proposed that models the problem of learning articulatory control for a physiologically plausible 3-D vocal tract model using a developmentally-inspired approach. The system babbles and explores efficiently in a low-dimensional space of goals that are relevant to the learner in its synthetic environment. The learning process is goal-directed and self-organized, and yields an inverse model of the mapping between sensory space and motor commands. This study provides a unified framework that can be used for learning static as well as dynamic motor representations. The successful learning of vowel and syllable sounds as well as the benefit of active and adaptive learning strategies are demonstrated. Categorical perception is found in the acquired models, suggesting that the framework has the potential to replicate phenomena of human speech acquisition.

Poetic Discourse in the Early Works of Sigitas Geda

The article examines poetic discourse in the early works of Sigitas Geda— these include Pėdos [Footprints, 1966], Geda’s first published collection of poems, and Strazdas [A Thrush, 1967], a long narrative poem. Poetic discourse is loosely defined in the article as a kind of modelling of meaningful speech in textual practice. The particular literary works selected are read as manifestations of a type of poetic discourse. The article presents an interpretative explication of this particular type and contrasts this approach with established mythopoetic readings of Geda’s oeuvre. In an attempt to examine poetic discourse enunciation, the article describes qualities of the textual fabric, e.g. modes of cohesion, part-towhole relations, collocations, dynamic vectors (such as crescendos), figures of the speaker, object representation, etc.The article singles out and discusses three aspects of the works in question: the particularities of plural enunciation and the way the enunciator projects itself as the ground for the totality of the represented world; the particular cognitive semiotic construct wherein a traditional landscape is represented as a diagrammatic sign that generates signification related to the past, integrating selected modern objects; a micro-plot of ecstatic experience by way of an immediate subjective encounter with the immensity of the past; and epiphanic images of primitive cosmology that emerge in moments of extreme intensity, as attained in the process of enunciation by the selfprojecting imagination.