User profiles for Tomomichi Oya

Tomomichi Oya

Postdoctoral Associate, The Brain and Mind Institute, Western University
Verified email at uwo.ca
Cited by 618

How does the brain solve muscle redundancy? Filling the gap between optimization and muscle synergy hypotheses

M Hirashima, T Oya - Neuroscience research, 2016 - Elsevier
The question of how the central nervous system coordinates redundant muscles has been a
long-standing problem in motor neuroscience. The optimization hypothesis posits that the …

Neural basis for hand muscle synergies in the primate spinal cord

…, J Confais, S Tomatsu, T Oya… - Proceedings of the …, 2017 - National Acad Sciences
Grasping is a highly complex movement that requires the coordination of multiple hand joints
and muscles. Muscle synergies have been proposed to be the functional building blocks …

Recruitment and rate coding organisation for soleus motor units across entire range of voluntary isometric plantar flexions

T Oya, S Riek, AG Cresswell - The Journal of physiology, 2009 - Wiley Online Library
Unlike upper limb muscles, it remains undocumented as to how motor units in the soleus
muscle are organised in terms of recruitment range and discharge rates with respect to their …

Increases in corticospinal responsiveness during a sustained submaximal plantar flexion

BW Hoffman, T Oya, TJ Carroll… - Journal of applied …, 2009 - journals.physiology.org
Studying the responsiveness of specific central nervous system pathways to electrical or
magnetic stimulation can provide important information regarding fatigue processes in the …

[PDF][PDF] Muscle synergy analysis yields an efficient and physiologically relevant method of assessing stroke

T Funato, N Hattori, A Yozu, Q An, T Oya… - Brain …, 2022 - academic.oup.com
The Fugl-Meyer Assessment is widely used to test motor function in stroke survivors. In the
Fugl-Meyer Assessment, stroke survivors perform several movement tasks and clinicians …

Corticospinal-evoked responses in lower limb muscles during voluntary contractions at varying strengths

T Oya, BW Hoffman… - Journal of applied …, 2008 - journals.physiology.org
This study investigated corticospinal-evoked responses in lower limb muscles during voluntary
contractions at varying strengths. Similar investigations have been made on upper limb …

Myomatrix arrays for high-definition muscle recording

…, R Gibbs, P Anschutz, J Lu, Y Wu, M Kashefi, T Oya… - Elife, 2023 - elifesciences.org
This important paper reports major technical advances for in vivo intramuscular electrical
recording from multiple motor units in behaving animals. The paper includes compelling …

[HTML][HTML] Distinct sensorimotor feedback loops for dynamic and static control of primate precision grip

T Oya, T Takei, K Seki - Communications Biology, 2020 - nature.com
Volitional limb motor control involves dynamic and static muscle actions. It remains elusive
how such distinct actions are controlled through separated or shared neural circuits. Here we …

Mechanomyographic responses in human biceps brachii and soleus during sustained isometric contraction

…, T Hamada, T Watanabe, A Maeda, T Oya… - European journal of …, 2004 - Springer
The purpose of this study was to elucidate the responses of the mechanomyogram (MMG)
from two apparently different muscles (biceps brachii and soleus) during a sustained voluntary …

[PDF][PDF] Modulation of somatosensory signal transmission in the primate cuneate nucleus during voluntary hand movement

…, C Sasaki, S Kikuta, J Yoshida, S Ito, H Gomi, T Oya… - Cell Reports, 2024 - cell.com
Primate hands house an array of mechanoreceptors and proprioceptors, which are essential
for tactile and kinematic information crucial for daily motor action. While the regulation of …