Theta oscillations within right dorsolateral prefrontal cortex contribute differently to speech versus limb inhibition

K Johari, JI Berger - Journal of neuroscience research, 2024‏ - Wiley Online Library
Evidence suggests that speech and limb movement inhibition are subserved by common
neural mechanisms, particularly within the right prefrontal cortex. In a recent study, we found …

Neural correlates of speech and limb motor timing deficits revealed by aberrant beta band desynchronization in Parkinson's disease

K Johari, R Behroozmand - Clinical Neurophysiology, 2021‏ - Elsevier
Objective We used a classical motor reaction time paradigm to examine the effects of
Parkinson's disease (PD) on the mechanisms of speech production and upper limb …

HD-tACS over the left frontal aslant tract entrains theta activity associated with speech motor control

K Johari, F Tabari - Brain Research, 2025‏ - Elsevier
Transient disruption or permanent damage to the left Frontal Aslant Tract (FAT) is associated
with deficits in speech production. The present study examined the application of theta (4 …

Sensorimotor impairment of speech and hand movement timing processing in Parkinson's disease

R Behroozmand, K Johari - Journal of Motor Behavior, 2019‏ - Taylor & Francis
Abstract Models of motor control have highlighted the role of temporal predictive
mechanisms in sensorimotor processing of speech and limb movement timing. We …

Behavioral and neural correlates of normal aging effects on motor preparatory mechanisms of speech production and limb movement

K Johari, DB den Ouden, R Behroozmand - Experimental brain research, 2019‏ - Springer
Normal aging is associated with decline of the sensorimotor mechanisms that support
movement function in the human brain. In this study, we used behavioral and event-related …

[HTML][HTML] Cerebellar-cortical function and connectivity during sensorimotor behavior in aging FMR1 gene premutation carriers

WS McKinney, J Bartolotti, P Khemani, JY Wang… - NeuroImage: Clinical, 2020‏ - Elsevier
Introduction Premutation carriers of the FMR1 gene are at risk of develo** fragile X-
associated tremor/ataxia syndrome (FXTAS), a neurodegenerative disease characterized by …

Functional dissociation of temporal processing mechanisms during speech production and hand movement: An ERP study

K Johari, R Behroozmand - Behavioural brain research, 2018‏ - Elsevier
Skilled motor actions are mediated by neural mechanisms that incorporate sensory
feedback for driving or suppressing movement with remarkable temporal precision. The …

Effects of kiai on jum** performance and striking reaction time in karate athletes

JCC Rodrigues, EM Penna… - Idō Movement for …, 2022‏ - search.proquest.com
Background. Kiai is a breathing technique, usually related to a short scream that aims to
focus the martial artist's energy in a given attack. However, the influence of kiai in the …

Effects of kiai on jum** performance and striking reaction time in Karate athletes

JC Carvalho Rodrigues, E Macedo Penna… - Ido Movement for …, 2022‏ - cejsh.icm.edu.pl
Background. Kiai is a breathing technique, usually related to a short scream that aims to
focus the martial artist's energy in a given attack. However, the influence of kiai in the …