Temporal hierarchy of intonation and tone processing in Mandarin Chinese

2018 ◽  
Author(s):  
Jiaqi Li
Keyword(s):  
Mandarin Chinese ◽  
Lexical Tone ◽  
Human Communication ◽  
Behavioral Reactions ◽  
Lexical Tones ◽  
Early Interaction ◽  
The Brain

Intonation and lexical tone both rely on F0 in tonal languages. While the former one can indicate the speaker’s intention (e.g., raise a question or state a fact), the latter helps determine the meaning of a word. These two interact with each other in sentence, but the access order of them by the brain is unknown. The current study aimed at investigating the access order of intonation and lexical tones in Mandarin Chinese. Participants were required to listen to Mandarin sentences containing both intonation and lexical tone in the same syllable and judge the intonation (in the intonation task) and tone (in the tone task). Their behavioral reactions and mean amplitudes in ERP were recorded and analyzed. Results showed that in the intonation task, the participants responded to intonation first and then the lexical tone. In the tone task, participants were sensitive to both intonation and tone in an early interaction beginning from 100ms. Participants were alert to intonation and would process it no matter in which task, indicating the important role of intonation in human communication.

Lexical tone variation and spoken word recognition in preschool children: effects of perceptual salience

2016 ◽  
Vol 44 (4) ◽  
pp. 924-942 ◽  
Author(s):  
LEHER SINGH ◽  
ALOYSIA TAN ◽  
THILANGA D. WEWALAARACHCHI
Keyword(s):  
Preschool Children ◽  
Word Recognition ◽  
Spoken Word Recognition ◽  
Spoken Word ◽  
Lexical Tone ◽  
Phonological Representations ◽  
Lexical Tones ◽  
Perceptual Salience ◽  
Developmental Course

AbstractChildren undergo gradual progression in their ability to differentiate correct and incorrect pronunciations of words, a process that is crucial to establishing a native vocabulary. For the most part, the development of mature phonological representations has been researched by investigating children's sensitivity to consonant and vowel variation, with a much lesser focus on lexical tones. The current study investigates sensitivity to lexical tones in word recognition with specific attention to role of perceptual salience. Chinese-speaking preschoolers were presented with familiar words that were correctly pronounced, substituted for a subtle tone variant (Tones 2 and 3), or substituted for a salient tone variant (Tones 1 and 4). Results demonstrated that subtle tone variants were mistakenly perceived as correct pronunciations and only salient tone variants were recognized as mispronunciations. Findings suggest that tone integration follows a more complex developmental course that previously concluded.

Lexical Tone Perception in Mandarin Chinese Speakers With Aphasia

2021 ◽  
Vol 44 (1) ◽  
pp. 54-67
Author(s):  
Qiang Li ◽  
Shuang Wang ◽  
Yunling Du ◽  
Nicole Müller
Keyword(s):  
Mandarin Chinese ◽  
Left Hemisphere ◽  
Complex Signal ◽  
Lexical Tone ◽  
Acoustic Features ◽  
Linguistic Features ◽  
Chinese Speakers ◽  
Pitch Patterns ◽  
The Brain ◽  
Functional Hypothesis

Abstract The brain localization debate of lexical tone processing concerns functional hypothesis that lexical tone, owing to its strong linguistic features, is dominant in the left hemisphere, and acoustic hypothesis that all pitch patterns, including lexical tone, are dominant in the right hemisphere due to their acoustic features. Lexical tone as a complex signal contains acoustic components that carry linguistic, paralinguistic, and nonlinguistic information. To examine these two hypotheses, the current study adopted triplet stimuli including Chinese characters, their corresponding pinyin with a diacritic, and the four diacritics representing Chinese lexical tones. The stimuli represent the variation of lexical tone for its linguistic and acoustic features. The results of a listening task by Mandarin Chinese speakers with and without aphasia support the functional hypothesis that pitch patterns are lateralized to different hemispheres of the brain depending on their functions, with lexical tone to the left hemisphere as a function of linguistic features.

scholarly journals Вплив гіпертиреозу на процеси навчання та стан гліальних проміжних філаментів головного мозку щурів

2014 ◽  
Vol 5 (1) ◽  
pp. 66-70
Author(s):  
S. V. Kyrychenko ◽  
V. S. Nedzvetsky
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Passive Avoidance ◽  
Conditioned Reflex ◽  
Soluble Fraction ◽  
Behavioral Reactions ◽  
Time Saving ◽  
The Brain ◽  
Polypeptide Band

The influence of hyperthyreosis on oxidative stress, state of glial intermediate filaments and memotry was investigated. Significant increasing of lipid peroxidation products into both hippocampus and cortex and change for the worse of memory was observed. Analysis of the behavioral reactions of rats in the test of passive avoidance conditioned reflex showed that the acquisition of skills of all groups of animals did not differ by time waiting period (latent period). Time saving memory test conditioned reflex of passive avoidance was excellent in the group of rats treated with thyroxine compared with controls. The change of polypeptide GFAP was observed in hippocampus and cortex. Both soluble and filamentous forms of GFAP increased in hippocampus of rat with hyperthyreosis. In filament fractions, increase in the intensity of 49 kDa polypeptide band was found. In the same fraction of insoluble cytoskeleton proteins degraded HFKB polypeptides with molecular weight in the region of 46–41 kDa appeared. Marked increase of degraded polypeptides was found in the soluble fraction of the brain stem. The intensity of the intact polypeptide (49 kDa), as well as in the filament fraction, significantly increased. It is possible that increasing concentrations of soluble subunits glial filaments may be due to dissociation of own filaments during the reorganization of cytoskeleton structures. Given the results of Western blotting for filament fraction, increased content of soluble intact 49 kDa polypeptide is primarily the result of increased expression of HFKB and only partly due to redistribution of existing filament structures. Calculation and analysis of indicators showed high correlation between the increase in content and peroxidation products of HFKB. These results indicate the important role of oxidative stress in the induction of astroglial reactive response under conditions of hyperthyroidism. This data shows the possibility of the glial cell cytoskeleton reconstruction under effect of thyroid hormones. 

scholarly journals Lexical encoding of L2 tones: The role of L1 stress, pitch accent and intonation

2014 ◽  
Vol 30 (3) ◽  
pp. 323-350 ◽  
Author(s):  
Bettina Braun ◽  
Tobias Galts ◽  
Barış Kabak
Keyword(s):  
Mandarin Chinese ◽  
Native Speakers ◽  
First Language ◽  
Pitch Accent ◽  
Prosodic Structure ◽  
Lexical Tone ◽  
Word Prosody ◽  
Mismatch Condition ◽  
Complete Match

Native language prosodic structure is known to modulate the processing of non-native suprasegmental information. It has been shown that native speakers of French, a language without lexical stress, have difficulties storing non-native stress contrasts. We investigated whether the ability to store lexical tone (as in Mandarin Chinese) also depends on the first language (L1) prosodic structure and, if so, how. We tested participants from a stress language (German), a language without word stress (French), a language with restricted lexical tonal contrasts (Japanese), and Mandarin Chinese controls. Furthermore, German has a rich intonational structure, while French and Japanese dispose of fewer utterance-level pitch contrasts. The participants learnt associations between disyllabic non-words (4 tonal contrasts) and objects and indicated whether picture–word pairs matched with what they had learnt (complete match, segmental or tonal mismatch conditions). In the tonal mismatch condition, the Mandarin Chinese controls had the highest sensitivity, followed by the German participants. The French and Japanese participants showed no sensitivity towards these tonal contrasts. Utterance-level prosody is hence better able to predict success in second language (L2) tone learning than word prosody.

The Role of Mitochondria in the Genesis of Neuroaxonal Dystrophy in the Brains of Aging Mice

1975 ◽  
Vol 33 ◽  
pp. 372-373
Author(s):  
J.E. Johnson
Keyword(s):  
Electron Microscopy ◽  
Present Report ◽  
Light And Electron Microscopy ◽  
Dorsal Column ◽  
Neuroaxonal Dystrophy ◽  
Nucleus Gracilis ◽  
Dystrophic Axons ◽  
The Brain ◽  
Nucleus Cuneatus

Although neuroaxonal dystrophy (NAD) has been examined by light and electron microscopy for years, the nature of the components in the dystrophic axons is not well understood. The present report examines nucleus gracilis and cuneatus (the dorsal column nuclei) in the brain stem of aging mice.Mice (C57BL/6J) were sacrificed by aldehyde perfusion at ages ranging from 3 months to 23 months. Several brain areas and parts of other organs were processed for electron microscopy.At 3 months of age, very little evidence of NAD can be discerned by light microscopy. At the EM level, a few axons are found to contain dystrophic material. By 23 months of age, the entire nucleus gracilis is filled with dystrophic axons. Much less NAD is seen in nucleus cuneatus by comparison. The most recurrent pattern of NAD is an enlarged profile, in the center of which is a mass of reticulated material (reticulated portion; or RP).

On the Relationship Between General Auditory Sensitivity and Speech Perception: An Examination of Pitch and Lexical Tone Perception in 4- to 6-Year-Old Children

2020 ◽  
Vol 63 (2) ◽  
pp. 487-498
Author(s):  
Puisan Wong ◽  
Man Wai Cheng
Keyword(s):  
Speech Perception ◽  
Theoretical Models ◽  
Developmental Trajectory ◽  
Auditory Sensitivity ◽  
Pitch Discrimination ◽  
Lexical Tone ◽  
Perceptual Training ◽  
Lexical Tones ◽  
Tone Perception ◽  
Tone Discrimination

Purpose Theoretical models and substantial research have proposed that general auditory sensitivity is a developmental foundation for speech perception and language acquisition. Nonetheless, controversies exist about the effectiveness of general auditory training in improving speech and language skills. This research investigated the relationships among general auditory sensitivity, phonemic speech perception, and word-level speech perception via the examination of pitch and lexical tone perception in children. Method Forty-eight typically developing 4- to 6-year-old Cantonese-speaking children were tested on the discrimination of the pitch patterns of lexical tones in synthetic stimuli, discrimination of naturally produced lexical tones, and identification of lexical tone in familiar words. Results The findings revealed that accurate lexical tone discrimination and identification did not necessarily entail the accurate discrimination of nonlinguistic stimuli that followed the pitch levels and pitch shapes of lexical tones. Although pitch discrimination and tone discrimination abilities were strongly correlated, accuracy in pitch discrimination was lower than that in tone discrimination, and nonspeech pitch discrimination ability did not precede linguistic tone discrimination in the developmental trajectory. Conclusions Contradicting the theoretical models, the findings of this study suggest that general auditory sensitivity and speech perception may not be causally or hierarchically related. The finding that accuracy in pitch discrimination is lower than that in tone discrimination suggests that comparable nonlinguistic auditory perceptual ability may not be necessary for accurate speech perception and language learning. The results cast doubt on the use of nonlinguistic auditory perceptual training to improve children's speech, language, and literacy abilities.

Fibrinolytic Activity of Cerebro-Spinal Fluid and the Development of Artificial Cerebral Haematomas in Dogs

1969 ◽  
Vol 21 (02) ◽  
pp. 294-303 ◽  
Author(s):  
H Mihara ◽  
T Fujii ◽  
S Okamoto
Keyword(s):  
Cerebrospinal Fluid ◽  
Carboxylic Acid ◽  
Fibrinolytic Activity ◽  
Clinical Implications ◽  
Trans Form ◽  
Plate Method ◽  
Blood Samples ◽  
Fibrin Plate ◽  
The Brain

SummaryBlood was injected into the brains of dogs to produce artificial haematomas, and paraffin injected to produce intracerebral paraffin masses. Cerebrospinal fluid (CSF) and peripheral blood samples were withdrawn at regular intervals and their fibrinolytic activities estimated by the fibrin plate method. Trans-form aminomethylcyclohexane-carboxylic acid (t-AMCHA) was administered to some individuals. Genera] relationships were found between changes in CSF fibrinolytic activity, area of tissue damage and survival time. t-AMCHA was clearly beneficial to those animals given a programme of administration. Tissue activator was extracted from the brain tissue after death or sacrifice for haematoma examination. The possible role of tissue activator in relation to haematoma development, and clinical implications of the results, are discussed.

Neuromyelitis optica spectrum: novel concept of pathogenesis, diagnosis and treatment of Devic’s disease

2009 ◽  
Vol 150 (46) ◽  
pp. 2101-2109 ◽  
Author(s):  
Péter Csécsei ◽  
Anita Trauninger ◽  
Sámuel Komoly ◽  
Zsolt Illés
Keyword(s):  
Neuromyelitis Optica ◽  
Water Channel ◽  
Diagnostic Procedures ◽  
Diagnosis And Treatment ◽  
Clinical Settings ◽  
Permanent Disability ◽  
Therapeutic Decisions ◽  
Novel Concept ◽  
The Brain

The identification of autoantibodies generated against the brain isoform water channel aquaporin4 in the sera of patients, changed the current diagnostic guidelines and concept of neuromyelitis optica (NMO). In a number of cases, clinical manifestation is spatially limited to myelitis or relapsing optic neuritis creating a diverse. NMO spectrum. Since prevention of relapses provides the only possibility to reduce permanent disability, early diagnosis and treatment is mandatory. In the present study, we discuss the potential role of neuroimaging and laboratory tests in differentiating the NMO spectrum from other diseases, as well as the diagnostic procedures and therapeutic options. We also present clinical cases, to provide examples of different clinical settings, diagnostic procedures and therapeutic decisions.

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