Search Results - "Usami, Kiyohide"

The Dynamics of Language Network Interactions in Lexical Selection: An Intracranial EEG Study by Wang, Yujing, Korzeniewska, Anna, Usami, Kiyohide, Valenzuela, Alyssandra, Crone, Nathan E

“…Abstract Speaking in sentences requires selection from contextually determined lexical representations. Although posterior temporal cortex (PTC) and Broca’s…”
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Intraoperative dorsal language network mapping by using single-pulse electrical stimulation by Yamao, Yukihiro, Matsumoto, Riki, Kunieda, Takeharu, Arakawa, Yoshiki, Kobayashi, Katsuya, Usami, Kiyohide, Shibata, Sumiya, Kikuchi, Takayuki, Sawamoto, Nobukatsu, Mikuni, Nobuhiro, Ikeda, Akio, Fukuyama, Hidenao, Miyamoto, Susumu

“…The preservation of language function during brain surgery still poses a challenge. No intraoperative methods have been established to monitor the language…”
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A Biomarker for Benign Adult Familial Myoclonus Epilepsy: High‐Frequency Activities in Giant Somatosensory Evoked Potentials by Tojima, Maya, Hitomi, Takefumi, Matsuhashi, Masao, Neshige, Shuichiro, Usami, Kiyohide, Oi, Kazuki, Kobayashi, Katsuya, Takeyama, Hirofumi, Shimotake, Akihiro, Takahashi, Ryosuke, Ikeda, Akio

“…Background Benign adult familial myoclonus epilepsy (BAFME) is one of the diseases that cause cortical myoclonus (CM) with giant somatosensory evoked…”
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Enhanced phase-amplitude coupling of human electrocorticography selectively in the posterior cortical region during rapid eye movement sleep by Togawa, Jumpei, Matsumoto, Riki, Usami, Kiyohide, Matsuhashi, Masao, Inouchi, Morito, Kobayashi, Katsuya, Hitomi, Takefumi, Nakae, Takuro, Shimotake, Akihiro, Yamao, Yukihiro, Kikuchi, Takayuki, Yoshida, Kazumichi, Kunieda, Takeharu, Miyamoto, Susumu, Takahashi, Ryosuke, Ikeda, Akio

“…The spatiotemporal dynamics of interaction between slow (delta or infraslow) waves and fast (gamma) activities during wakefulness and sleep are yet to be…”
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The dynamics of cortical interactions in visual recognition of object category: living versus nonliving by Usami, Kiyohide, Matsumoto, Riki, Korzeniewska, Anna, Shimotake, Akihiro, Matsuhashi, Masao, Nakae, Takuro, Kikuchi, Takayuki, Yoshida, Kazumichi, Kunieda, Takeharu, Takahashi, Ryosuke, Crone, Nathan E, Ikeda, Akio

“…Abstract Noninvasive brain imaging studies have shown that higher visual processing of objects occurs in neural populations that are separable along broad…”
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Distinct connectivity patterns in human medial parietal cortices: Evidence from standardized connectivity map using cortico-cortical evoked potential by Togo, Masaya, Matsumoto, Riki, Usami, Kiyohide, Kobayashi, Katsuya, Takeyama, Hirofumi, Nakae, Takuro, Shimotake, Akihiro, Kikuchi, Takayuki, Yoshida, Kazumichi, Matsuhashi, Masao, Kunieda, Takeharu, Miyamoto, Susumu, Takahashi, Ryosuke, Ikeda, Akio

“…The medial parietal cortices are components of the default mode network (DMN), which are active in the resting state. The medial parietal cortices include the…”
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Sleep modulates cortical connectivity and excitability in humans: Direct evidence from neural activity induced by single-pulse electrical stimulation by Usami, Kiyohide, Matsumoto, Riki, Kobayashi, Katsuya, Hitomi, Takefumi, Shimotake, Akihiro, Kikuchi, Takayuki, Matsuhashi, Masao, Kunieda, Takeharu, Mikuni, Nobuhiro, Miyamoto, Susumu, Fukuyama, Hidenao, Takahashi, Ryosuke, Ikeda, Akio

“…Sleep‐induced changes in human brain connectivity/excitability and their physiologic basis remain unclear, especially in the frontal lobe. We investigated…”
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Correlation between brain functional connectivity and neurocognitive function in patients with left frontal glioma by Ueda, Masaya, Usami, Kiyohide, Yamao, Yukihiro, Yamawaki, Rie, Umaba, Chinatsu, Liang, Nan, Nankaku, Manabu, Mineharu, Yohei, Honda, Masayuki, Hitomi, Takefumi, Ikeguchi, Ryosuke, Ikeda, Akio, Miyamoto, Susumu, Matsuda, Shuichi, Arakawa, Yoshiki

“…The association between neurocognitive function (NCF) impairment and brain cortical functional connectivity in glioma patients remains unclear. The…”
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Cortical Responses to Input From Distant Areas are Modulated by Local Spontaneous Alpha/Beta Oscillations by Usami, Kiyohide, Milsap, Griffin W, Korzeniewska, Anna, Collard, Maxwell J, Wang, Yujing, Lesser, Ronald P, Anderson, William S, Crone, Nathan E

“…Abstract Any given area in human cortex may receive input from multiple, functionally heterogeneous areas, potentially representing different processing…”
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High frequency activity overriding cortico-cortical evoked potentials reflects altered excitability in the human epileptic focus by Kobayashi, Katsuya, Matsumoto, Riki, Matsuhashi, Masao, Usami, Kiyohide, Shimotake, Akihiro, Kunieda, Takeharu, Kikuchi, Takayuki, Yoshida, Kazumichi, Mikuni, Nobuhiro, Miyamoto, Susumu, Fukuyama, Hidenao, Takahashi, Ryosuke, Ikeda, Akio

“…•We analyzed high frequency activity (HFA) of cortico-cortical evoked potentials (CCEPs) in epilepsy.•The HFA power of early CCEPs in seizure onset zone (SOZ)…”
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Neural pattern similarity between contra- and ipsilateral movements in high-frequency band of human electrocorticograms by Fujiwara, Yusuke, Matsumoto, Riki, Nakae, Takuro, Usami, Kiyohide, Matsuhashi, Masao, Kikuchi, Takayuki, Yoshida, Kazumichi, Kunieda, Takeharu, Miyamoto, Susumu, Mima, Tatsuya, Ikeda, Akio, Osu, Rieko

“…The cortical motor areas are activated not only during contralateral limb movements but also during ipsilateral limb movements. Although these ipsilateral…”
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Phasic REM Transiently Approaches Wakefulness in the Human Cortex—A Single-Pulse Electrical Stimulation Study by Usami, Kiyohide, Matsumoto, Riki, Kobayashi, Katsuya, Hitomi, Takefumi, Matsuhashi, Masao, Shimotake, Akihiro, Kikuchi, Takayuki, Yoshida, Kazumichi, Kunieda, Takeharu, Mikuni, Nobuhiro, Miyamoto, Susumu, Takahashi, Ryosuke, Ikeda, Akio

“…Abstract Study Objectives To investigate the changes in cortical neural responses induced by external inputs during phasic rapid eye movement (p-REM) sleep…”
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Do scalp-recorded slow potentials during neuro-feedback training reflect the cortical activity? by Fumuro, Tomoyuki, Matsuhashi, Masao, Matsumoto, Riki, Usami, Kiyohide, Shimotake, Akihiro, Kunieda, Takeharu, Kikuchi, Takayuki, Yoshida, Kazumichi, Takahashi, Ryosuke, Miyamoto, Susumu, Ikeda, Akio

“…•Slow potentials (SPs) from scalp and intracranial electrodes were simultaneously compared.•The coherence of SPs negatively correlated with the distance…”
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Pre-SMA actively engages in conflict processing in human: A combined study of epicortical ERPs and direct cortical stimulation by Usami, Kiyohide, Matsumoto, Riki, Kunieda, Takeharu, Shimotake, Akihiro, Matsuhashi, Masao, Miyamoto, Susumu, Fukuyama, Hidenao, Takahashi, Ryosuke, Ikeda, Akio

“…Previous non-invasive studies have proposed that the deeply seated region of the medial frontal cortex engages in conflict processing in humans, but its core…”
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Epileptic network of hypothalamic hamartoma: an EEG-fMRI study by Usami, Kiyohide, Matsumoto, Riki, Sawamoto, Nobukatsu, Murakami, Hiroatsu, Inouchi, Morito, Fumuro, Tomoyuki, Shimotake, Akihiro, Kato, Takeo, Mima, Tatsuya, Shirozu, Hiroshi, Masuda, Hiroshi, Fukuyama, Hidenao, Takahashi, Ryosuke, Kameyama, Shigeki, Ikeda, Akio

“…Highlights • We performed EEG-fMRI in eight HH patients with GS. • EEG-fMRI revealed activation in or around the hypothalamus in 6/8 patients. • Activation in…”
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Different Mode of Afferents Determines the Frequency Range of High Frequency Activities in the Human Brain: Direct Electrocorticographic Comparison between Peripheral Nerve and Direct Cortical Stimulation by Kobayashi, Katsuya, Matsumoto, Riki, Matsuhashi, Masao, Usami, Kiyohide, Shimotake, Akihiro, Kunieda, Takeharu, Kikuchi, Takayuki, Mikuni, Nobuhiro, Miyamoto, Susumu, Fukuyama, Hidenao, Takahashi, Ryosuke, Ikeda, Akio

“…Physiological high frequency activities (HFA) are related to various brain functions. Factors, however, regulating its frequency have not been well elucidated…”
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Human entorhinal cortex electrical stimulation evoked short‐latency potentials in the broad neocortical regions: Evidence from cortico‐cortical evoked potential recordings by Takeyama, Hirofumi, Matsumoto, Riki, Usami, Kiyohide, Nakae, Takuro, Kobayashi, Katsuya, Shimotake, Akihiro, Kikuchi, Takayuki, Yoshida, Kazumichi, Kunieda, Takeharu, Miyamoto, Susumu, Takahashi, Ryosuke, Ikeda, Akio

“…Objective We aimed at clarifying the clinical significance of the responses evoked by human entorhinal cortex (EC) electrical stimulation by means of…”
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Migraine with multiple visual symptoms and out-of-body experience may mimic epilepsy by Hosokawa, Kyoko, Usami, Kiyohide, Kajikawa, Shunsuke, Shimotake, Akihiro, Tatsuoka, Yoshihisa, Ikeda, Akio, Takahashi, Ryosuke

“…The patient was an 18-year-old man who had suffered from various visual symptoms as follows since he was 17 years old: 1) a diagonal line appeared in his…”
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A case series of 4 epilepsy patients with promnesia by Kajikawa, Shunsuke, Kobayashi, Katsuya, Usami, Kiyohide, Matsumoto, Riki, Ikeda, Akio, Takahashi, Ryosuke

“…Promnesia is a feeling of familiarity and foreknowledge and is a manifestation of simple partial seizures (focal aware seizures). It is similar to déjà vu and…”
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Does single stimulus elucidate the complex mystery of sleep? by Usami, Kiyohide

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