The present magnetoencephalography study used the cortically constrained minimum-norm estimates of human brain activity to elucidate functional roles of neural generators for detecting different magnitudes of lexical tones changes. A multiple-deviant oddball paradigm was used in which the syllable "yi" with a low-dipping tone (T3) was the common standard sound and the same syllable with a high-level tone (T1) or a high-rising tone (T2) were the large and small deviant sounds, respectively. The data revealed a larger magnetic mismatch field (MMNm) for large deviant in the left hemisphere. The source analysis also confirmed that the MMNm to lexical tone changes was generated in bilateral superior temporal gyri and only the large deviant revealed left lateralization. A set of frontal generators was activated at a later time and revealed differential sensitivities to the degree of deviance. The left anterior insula, the right anterior cingulate cortex, and the right ventral orbital frontal cortex were activated when detecting a large deviant, whereas the right frontal-opercular region was sensitive to the small deviant. These frontal generators were thought to be associated with various top-down mechanisms for attentional modulatio...Continue Reading
Brain generators implicated in the processing of auditory stimulus deviance: a topographic event-related potential study
Cerebral generators of mismatch negativity (MMN) and its magnetic counterpart (MMNm) elicited by sound changes
Processing of novel sounds and frequency changes in the human auditory cortex: magnetoencephalographic recordings
Involuntary attention in children as a function of sound source location: evidence from event-related potentials
Spatiotemporal dynamics of neural language processing: an MEG study using minimum-norm current estimates
Superior temporal and inferior frontal cortices are activated by infrequent sound duration decrements: an fMRI study
An automated labeling system for subdividing the human cerebral cortex on MRI scans into gyral based regions of interest
Where and when the anterior cingulate cortex modulates attentional response: combined fMRI and ERP evidence
Language outside the focus of attention: the mismatch negativity as a tool for studying higher cognitive processes
Opposite patterns of hemisphere dominance for early auditory processing of lexical tones and consonants
Heschl's gyrus, posterior superior temporal gyrus, and mid-ventrolateral prefrontal cortex have different roles in the detection of acoustic changes
Direct evidence for differential roles of temporal and frontal components of auditory change detection
Modulation of gamma and alpha activity during a working memory task engaging the dorsal or ventral stream
A critical role for the right fronto-insular cortex in switching between central-executive and default-mode networks
Right Hemispheric Contributions to Fine Auditory Temporal Discriminations: High-Density Electrical Mapping of the Duration Mismatch Negativity (MMN)
ERP correlates of pre-attentive processing of Cantonese lexical tones: The effects of pitch contour and pitch height
Left hemisphere lateralization for lexical and acoustic pitch processing in Cantonese speakers as revealed by mismatch negativity
Improved Localizadon of Cortical Activity by Combining EEG and MEG with MRI Cortical Surface Reconstruction: A Linear Approach
Attention deficits revealed by passive auditory change detection for pure tones and lexical tones in ADHD children
Intracranial Recordings and Computational Modeling of Music Reveal the Time Course of Prediction Error Signaling in Frontal and Temporal Cortices
Functional connectivity of the frontotemporal network in preattentive detection of abstract changes: Perturbs and observes with transcranial magnetic stimulation and event-related optical signal.
Mismatch Negativity as an Indicator of Cognitive Sub-Domain Dysfunction in Amyotrophic Lateral Sclerosis
Contributions of electrophysiology for identifying cortical language systems in patients with epilepsy.
Deficits in Processing of Lexical Tones in Mandarin-Speaking Children With Developmental Language Disorder: Electrophysiological Evidence.
Auditory perception is the ability to receive and interpret information attained by the ears. Here is the latest research on factors and underlying mechanisms that influence auditory perception.