Hyojin Park

Older Adults Show Preserved Neural Signatures of Audiovisual Integration but Altered Links to Speech Comprehension

The paper investigates age-related changes in audiovisual integration during speech comprehension using MEG and finds preserved neural mechanisms but altered behavioral links in older adults.

Augmenting Speech Comprehension using Rapid Frequency Tagging

This study shows that modulating visual stimuli with task-relevant speech improves speech comprehension in adverse conditions by enhancing audiovisual interaction.

Transformed reactivation of latent working memory enables hierarchical language processing

The paper investigates how the brain maintains and retrieves words during language comprehension, finding that memory is activity-silent and structured, with reactivation in specific brain regions.

Neocortical and hippocampal theta oscillations track audiovisual integration and replay of speech memories

This study shows that theta oscillations in the neocortex and hippocampus integrate and replay audiovisual speech memories, with reduced accuracy when speech is perceived asynchronously.

Attentional inhibition by alpha power is modulated by faster theta rhythm and audio-visual congruency during natural speech perception

The paper investigates how alpha power fluctuations during audio-visual speech perception are modulated by theta rhythm and audio-visual congruency, revealing a lateralized relationship with attention.

Dissociating endogenous and exogenous delta activity during natural speech comprehension

This study dissociates neural tracking of prosodic pauses from multi-word chunk processing using MEG, showing distinct low-frequency brain activity patterns for each.

Lip movements and lexical features improve speech tracking differently for clear and multi-speaker speech

This study shows face masks impair audiovisual speech tracking but not audio-only speech, highlighting the role of visual speech in speech processing.

Differential roles of delta and theta oscillations in understanding semantic gist during natural audiovisual speech perception: Functional and anatomical evidence

The paper investigates how delta and theta brain oscillations contribute to semantic processing during audiovisual speech perception, finding distinct roles for each band in integrating auditory and visual inputs.

Get the gist of the story: Neural map of topic keywords in multi-speaker environment

This study investigates how the brain processes topic keywords in multi-speaker speech using MEG and probabilistic topic modeling, showing differences in neural representation for attended and unattended speech.

Occlusion of lip movements impairs reconstruction of acoustic speech features and higher-level segmentational features in the presence of a distractor speaker

This study shows that face masks impair neural reconstruction of acoustic speech features and higher-level segmentational features, especially in challenging listening conditions with a distractor speaker.

Auditory detection is modulated by theta phase of silent lip movements

The paper shows that auditory detection varies with theta phase of silent lip movements, suggesting visual-auditory phase synchronisation modulates perception.

Predictive entrainment of natural speech through two fronto-motor top-down channels

The paper uses MEG data to show predictive speech processing through two distinct fronto-motor to auditory pathways at different frequencies.

Entrained audiovisual speech integration implemented by two independent computational mechanisms: Redundancy in left posterior superior temporal gyrus and Synergy in left motor cortex

The paper identifies two distinct computational mechanisms in different brain regions that support audiovisual speech comprehension: redundancy in the left posterior superior temporal gyrus and synergy in the left motor cortex.