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Search: authors:"Yuki Yamamoto"

22 papers found.
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Accumulation of exhausted CD8+ T cells in extramammary Paget’s disease

: Natsuko Iga, Chisa Nakashima, Tetsuya Honda, Akihiko Kitoh, Saeko Nakajima, Gyohei Egawa, Teruki Dainichi, Shigeto Matsushita, Hideaki Tanizaki, Yuki Yamamoto, Takeru Funakoshi, Yasuhiro Fujisawa, Taku

Neural correlates of ambient thermal sensation: An fMRI study

An increasing number of biometeorological and psychological studies have demonstrated the importance and complexity of the processes involved in environmental thermal perception in humans. However, extant functional imaging data on thermal perception have yet to fully reveal the neural mechanisms underlying these processes because most studies were performed using local thermal...

Effects of Time-Compressed Speech Training on Multiple Functional and Structural Neural Mechanisms Involving the Left Superior Temporal Gyrus

Kosuke Motoki,5 Hyeonjeong Jeong,5,6 Yuka Kotozaki,7 Seishu Nakagawa,5 Rui Nouchi,8,9 Kunio Iizuka,5,10 Ryoichi Yokoyama,11 Yuki Yamamoto,5 Sugiko Hanawa,5 Tsuyoshi Araki,9 Kohei Sakaki,5 Yukako Sasaki,5 ... Motoki, Hyeonjeong Jeong, Yuka Kotozaki, Seishu Nakagawa, Rui Nouchi, Kunio Iizuka, Ryoichi Yokoyama, Yuki Yamamoto, Sugiko Hanawa, Tsuyoshi Araki, Kohei Sakaki, Yukako Sasaki, and Daniele Magistro

Shorter sleep duration and better sleep quality are associated with greater tissue density in the brain

Poor sleep quality is associated with unfavorable psychological measurements, whereas sleep duration has complex relationships with such measurements. The aim of this study was to identify the associations between microstructural properties of the brain and sleep duration/sleep quality in a young adult. The associations between mean diffusivity (MD), a measure of diffusion tensor...

Allergic tendencies are associated with larger gray matter volumes

Allergic tendencies are associated with important cognitive and physiological factors, such as intelligence and mathematical abilities. Allergies are widely prevalent, especially in modern life, and the reason for its association with important cognitive variables is an intriguing scientific question. However, despite the unique characteristics of cognitive correlates of allergy...

Two-way least-incision transformable end-effector forceps for robot-assisted surgery

In laparoscopic surgery, smaller incisions produce good clinical results for patients. Therefore, there is a great need to develop thinner instruments for use in laparoscopic surgery. However, thinner instruments have smaller end effectors that limit the functionality of the instruments. To address this problem, we previously developed a new type of forceps that uses a least...

The effects of continuous application of sunscreen on photoaged skin in Japanese elderly people – the relationship with the usage

The effects of continuous application of sunscreen on photoaged skin in Japanese elderly people – the relationship with the usage Makoto Mizuno,1,2 Kayo Kunimoto,1 Eiji Naru,2 Koichi Kameyama,2 Fukumi Furukawa,1 Yuki Yamamoto1,3 1Department of Dermatology, Wakayama Medical University, Wakayama, Japan; 2Fundamental Research Laboratories, KOSÉ Corporation, Tokyo, Japan; 3Department...

Lenticular nucleus correlates of general self-efficacy in young adults

General self-efficacy (GSE) is an important factor in education, social participation, and medical treatment. However, the only study that has investigated the direct association between GSE and a neural correlate did not identify specific brain regions, rather only assessed brain structures, and included older adult subjects. GSE is related to motivation, physical activity...

Neuroanatomical bases of effortful control: evidence from a large sample of young healthy adults using voxel-based morphometry

Effortful control (EC) is a base of individuality in cognition and psychological adjustment. EC is defined as a capacity to control responses and behaviors. We investigated associations between individual differences of EC and regional gray and white matter volume (rGMV/rGMV) in 374 men and 306 women (age, 20.61 ± 1.82 years) using Japanese version of Effortful control scale (J...

Neural Mechanism for Mirrored Self-face Recognition

Self-face recognition in the mirror is considered to involve multiple processes that integrate 2 perceptual cues: temporal contingency of the visual feedback on one's action (contingency cue) and matching with self-face representation in long-term memory (figurative cue). The aim of this study was to examine the neural bases of these processes by manipulating 2 perceptual cues...

Differences in gray matter structure correlated to nationalism and patriotism

, Sendai, JapanAtsushi Sekiguchi, Seishu Nakagawa, Carlos Makoto Miyauchi, Kunio Iizuka, Ryoichi Yokoyama, Takamitsu Shinada, Yuki Yamamoto, Sugiko Hanawa & Ryuta KawashimaHuman and Social Response Research ... • Google ScholarSearch for Takamitsu Shinada in:Nature Research journals • PubMed • Google ScholarSearch for Yuki Yamamoto in:Nature Research journals • PubMed • Google ScholarSearch for Sugiko Hanawa

The anterior midcingulate cortex as a neural node underlying hostility in young adults

Anger typically manifests for only a short period of time, whereas hostility is present for a longer duration. However, both of these emotions are associated with an increased likelihood of psychological problems. The nodes within the neural networks that underlie hostility remain unclear. We presumed that specific nodes might include the anterior midcingulate cortex (aMCC...

White matter structures associated with loneliness in young adults

, Takamitsu Shinada, Yuki Yamamoto, Sugiko Hanawa & Ryuta KawashimaDivision of Developmental Cognitive Neuroscience, Institute of Development, Ageing and Cancer, Tohoku University, Sendai, JapanHikaru Takeuchi ... • PubMed • Google ScholarSearch for Ryoichi Yokoyama in:Nature Research journals • PubMed • Google ScholarSearch for Takamitsu Shinada in:Nature Research journals • PubMed • Google ScholarSearch for Yuki

Development of Peritoneal Tumor-Targeting Vector by In Vivo Screening with a Random Peptide-Displaying Adenovirus Library

The targeting of gene transfer at the cell-entry level is one of the most attractive challenges in vector development. However, attempts to redirect adenovirus vectors to alternative receptors by engineering the capsid-coding region have shown limited success, because the proper targeting ligands on the cells of interest are generally unknown. To overcome this limitation, we have...

Amygdala and cingulate structure is associated with stereotype on sex-role

, Ryoichi Yokoyama, Takamitsu Shinada, Yuki Yamamoto, Sugiko Hanawa & Ryuta KawashimaHuman and Social Response Research Division, International Research Institute of Disaster Science, Tohoku University ... journals • PubMed • Google ScholarSearch for Yuki Yamamoto in:Nature Research journals • PubMed • Google ScholarSearch for Sugiko Hanawa in:Nature Research journals • PubMed • Google ScholarSearch for

Apparently Noninvariant Terms of U(N) × U(N) Nonlinear Sigma Model in the One-Loop Approximation

We show how the Apparently Noninvariant Terms (ANTs), which emerge in perturbation theory of nonlinear sigma models, are consistent with the nonlinearly realized symmetry by employing the Ward-Takahashi identity (in the form of an inhomogeneous Zinn-Justin equation). In the literature the discussions on ANTs are confined to the SU(2) case. We generalize them to the U(N) case and...

The Relationship between Processing Speed and Regional White Matter Volume in Healthy Young People

Processing speed is considered a key cognitive resource and it has a crucial role in all types of cognitive performance. Some researchers have hypothesised the importance of white matter integrity in the brain for processing speed; however, the relationship at the whole-brain level between white matter volume (WMV) and processing speed relevant to the modality or problem used in...

Innovative Delivery of siRNA to Solid Tumors by Super Carbonate Apatite

RNA interference (RNAi) technology is currently being tested in clinical trials for a limited number of diseases. However, systemic delivery of small interfering RNA (siRNA) to solid tumors has not yet been achieved in clinics. Here, we introduce an in vivo pH-sensitive delivery system for siRNA using super carbonate apatite (sCA) nanoparticles, which is the smallest class of...

Brain structures in the sciences and humanities

The areas of academic interest (sciences or humanities) and area of study have been known to be associated with a number of factors associated with autistic traits. However, despite the vast amount of literature on the psychological and physiological characteristics associated with faculty membership, brain structural characteristics associated with faculty membership have never...