Topics

Lexical Tone Perception in Tone language--a fMRI Study

2019-10-28 13:57:20 | BioPortfolio

Summary

Tone language refers to a language that uses fixed pitch pattern to distinguish words (Yip, 2002). Understanding the functional anatomy of the brain during lexical tone processing will provide useful hints for an effective intervention strategy such as brain stimulation. The present study investigate the cortical organisation of the brain in lexical tone perception of Cantonese speakers by the use of functional magnetic resonance imaging (fMRI).

Description

Tone language refers to a language that uses fixed pitch pattern to distinguish words (Yip, 2002). Cantonese is one of the main tone languages spoken by over 70 million around the world (Li et al.,1995; Adolfsson, 2010). Individuals with significant hearing impairment often present great difficulty in tone perception, affecting their understanding of words and hence, hamper their overall communication. The poor tone perception persists even with intensive auditory training coupled with advanced hearing technology such as cochlear implants.

Understanding the functional anatomy of the brain during lexical tone processing will provide useful hints for an effective intervention strategy such as brain stimulation. Researchers have been investigating the neural basis for tone perception in the past decades but failing to come to a consensus on the location of the brain that is responsible for lexical tone processing. The discrepant results may be due to the fact of the differences in subject selection (animals, healthy adults, brain-injured patients, tonal-language and non-tonal language speakers), testing materials and tasks employed (linguistic versus non-linguistic stimuli; dichotic listening versus discrimination and identification tasks) and outcome measurements (performance score, reaction time, accuracy rate, PET scan and fMRI).

Cortical organization, or brain mapping, refers to functional anatomy of the brain. The present study is the first study to systematically investigate the cortical organization of the brain in lexical tone perception of Cantonese speakers by the use of functional magnetic resonance imaging (fMRI). A comprehensive set of auditory stimuli specifically for investigating the different levels of lexical tone processing will be constructed. Native Cantonese speakers with normal hearing were recruited. They underwent fMRI while listening to the carefully designed auditory stimuli.

Once the cortical organization of lexical tone processing in Cantonese is identified, the valuable findings could be applied in further brain intervention procedures to tackle the long lasting, unresolved tone perception difficulty encountered by people with hearing impairment or other related disorders.

Study Design

Conditions

Lexical Tone

Intervention

Normal hearing group

Location

Prince of Wales Hospital
Hong Kong
Hong Kong
China

Status

Completed

Source

Chinese University of Hong Kong

Results (where available)

View Results

Links

Published on BioPortfolio: 2019-10-28T13:57:20-0400

Clinical Trials [745 Associated Clinical Trials listed on BioPortfolio]

Effects of Stimulus Validity on Speech Recognition

The effects of talker variability will be investigated with four groups of listeners (young normal-hearing; old normal-hearing; young hearing-impaired; old hearing-impaired). Experimental ...

Age-related Hearing Loss and Lexical Disorders

In France, Alzheimer's disease accounts for 70 to 80% of the causes of neurocognitive disorders, i.e. 600,000 to 800,000 patients. It is a neurodegenerative pathology that causes evolution...

The RBANS-H in Older Adults With Normal Hearing or Age-related Hearing Loss

The present cross-sectional study aims to examine the cognitive capabilities of older adults, aged 50 to 89, with normal hearing or age-related hearing loss by means of the Repeatable Batt...

Age Dependence of Audiometric Bone Conduction Threshold in Normal Hearing Subjects

Examination of the bone conduction of persons which according to the pure tone audiogram have a normal age related hearing threshold in the air conduction.

The Effects of Ultrasonic Noise Exposure on Human Hearing

The aim of this research is to investigate the effects of ultrasonic noise exposure on the human auditory system (how it effects hearing). Current international regulations concerning ultr...

PubMed Articles [12321 Associated PubMed Articles listed on BioPortfolio]

The Role of Lexical Tone Information in the Recognition of Mandarin Sentences in Listeners With Hearing Aids.

Lexical tone information provides redundant cues for the recognition of Mandarin sentences in listeners with normal hearing in quiet conditions. The contribution of lexical tones to Mandarin sentence ...

The Acquisition of Mandarin Tonal Processes by Children With Cochlear Implants.

Purpose Children with cochlear implants (CIs) face challenges in acquiring tonal languages, as CIs do not efficiently code pitch information. Mandarin is a tonal language with lexical tones and tonal ...

Vowel and Tone Identification for Mandarin Congenital Amusics: Effects of Vowel Type and Semantic Content.

Purpose This study aimed to explore the effects of Mandarin congenital amusia with or without lexical tone deficit (i.e., tone agnosia and pure amusia) on Mandarin vowel and tone identification in dif...

From Cantonese Lexical Tone Awareness to Second Language English Vocabulary: Cross-Language Mediation by Segmental Phonological Awareness.

Purpose Cantonese lexical tone awareness is closely associated with 1st language Cantonese vocabulary knowledge, but its role in 2nd language English vocabulary knowledge was unclear. We addressed thi...

Neural correlates and functional connectivity of lexical tone processing in reading.

Lexical tone processing in speech is mediated by bilateral superior temporal and inferior prefrontal regions, but little is known concerning the neural circuitries of lexical tone phonology in reading...

Medical and Biotech [MESH] Definitions

Transmission of sound waves through vibration of bones in the SKULL to the inner ear (COCHLEA). By using bone conduction stimulation and by bypassing any OUTER EAR or MIDDLE EAR abnormalities, hearing thresholds of the cochlea can be determined. Bone conduction hearing differs from normal hearing which is based on air conduction stimulation via the EAR CANAL and the TYMPANIC MEMBRANE.

Measurement of hearing based on the use of pure tones of various frequencies and intensities as auditory stimuli.

Wearable sound-amplifying devices that are intended to compensate for impaired hearing. These generic devices include air-conduction hearing aids and bone-conduction hearing aids. (UMDNS, 1999)

Professionals skilled at diagnostic testing of hearing, HEARING IMPAIRMENT, and CORRECTION OF HEARING IMPAIRMENT by non-medical or non-surgical means.

Substances that act in the brain stem or spinal cord to produce tonic or clonic convulsions, often by removing normal inhibitory tone. They were formerly used to stimulate respiration or as antidotes to barbiturate overdose. They are now most commonly used as experimental tools.

More From BioPortfolio on "Lexical Tone Perception in Tone language--a fMRI Study"

Quick Search

Relevant Topic

Hearing
Hearing, auditory perception, or audition is the ability to perceive sound by detecting vibrations, changes in the pressure of the surrounding medium through time, through an organ such as the ear. Sound may be heard through solid, liquid, or gaseous mat...


Searches Linking to this Trial