Blake W. Johnson

Prior exposure to speech rapidly modulates cortical processing of high-level linguistic structure

The paper shows that prior speech exposure enhances cortical coherence to abstract linguistic units but not to word-level units, indicating intelligibility shapes neural processing of speech.

Functional segregation of cortical hand and speech areas by frequency detuning of an intrinsic motor rhythm.

The paper investigates frequency detuning of beta-band motor rhythms in hand and speech areas of the motor cortex, finding task-specific frequency differences in adults and children.

A novel candidate neuromarker of central motor dysfunction in childhood apraxia of speech

Decoding kinematic information from beta-band motor rhythms of speech motor cortex: A methodological/analytic approach using concurrent speech movement tracking and magnetoencephalography

This paper introduces a method to extract motor-related brain activity from speech production using combined articulography and MEG, showing reliable localization of speech sensorimotor cortex and distinct information in beta-band oscillations.

A novel protocol for magnetoencephalographic mapping of speech motor control regions during speech production.

This paper introduces a novel MEG protocol for mapping speech motor control regions during speech production, showing focal activation in precentral gyrus and differences between adults, typically developing children, and children with CAS.

Lateralised cerebral processing of abstract linguistic structure in clear and degraded speech

This study shows that brain activity tracking linguistic structures in speech changes with speech intelligibility, with higher-level structures being left-lateralized.

Concurrent MEG-articulography for investigating neuromotor control of speech articulation

This paper introduces a new articulography system, MASK, that combines kinematic speech movement data with MEG brain activity measurements, demonstrating its reliability in characterizing speech motor control development.

Developmental Changes in Movement Related Brain Activity in Early Childhood

The paper examines developmental changes in movement-related brain activity in children aged 6-8 years and adults, finding age-related increases in mu and beta oscillations and a step-like transition in gamma synchronization.

Human hippocampal high-gamma activity during rest periods in a virtual navigation task

This study examines high-gamma oscillations in the human hippocampus during rest periods in a virtual navigation task, finding a correlation with theta power during navigation and a link to memory consolidation.