A5026228341- Neural dynamics and brain function
- Functional Brain Connectivity Studies
- Neural and Behavioral Psychology Studies
- Action Observation and Synchronization
- Primate Behavior and Ecology
- Visual perception and processing mechanisms
- Mathematical Dynamics and Fractals
- Quantum chaos and dynamical systems
- Cultural Differences and Values
- Social and Intergroup Psychology
- Motor Control and Adaptation
- Chaos control and synchronization
- Ethics in Clinical Research
- Meta-analysis and systematic reviews
- advanced mathematical theories
- Neuroscience and Music Perception
- Optical Imaging and Spectroscopy Techniques
- Deception detection and forensic psychology
- Sport Psychology and Performance
- Face Recognition and Perception
- Psychosomatic Disorders and Their Treatments
- Jury Decision Making Processes
- Law, Economics, and Judicial Systems
- Psychology of Moral and Emotional Judgment
- Artificial Intelligence in Healthcare and Education
The University of Tokyo
2021
RIKEN Center for Brain Science
2009-2017
RIKEN
2009-2010
Nippon Soken (Japan)
2009
Nagoya University
2006
Although recent psychophysical studies indicate that visual awareness and top-down attention are two distinct processes, it is not clear how they neurally dissociated in the system. Using a two-by-two factorial functional magnetic resonance imaging design with binocular suppression, we found visibility or invisibility of target led to only nonsignificant blood oxygenation level-dependent (BOLD) effects human primary cortex (V1). Directing toward away from had much larger robust across all...
We used noninvasive MRI and voxel-based morphometry (VBM) to detect changes in brain structure three adult Japanese macaques trained use a rake retrieve food rewards. Monkeys, who were naive any previous tool use, scanned repeatedly 4-T scanner over 6 weeks, comprising 2 weeks of habituation followed by intensive daily training 2-week posttraining period. VBM analysis revealed significant increases gray matter with performance across the monkeys. The effects most ( P < 0.05 corrected for...
The superior capability of cognitive experts largely depends on quick automatic processes. To reveal their neural bases, we used functional magnetic resonance imaging to study brain activity professional and amateur players in a board game named shogi. We found two activations specific professionals: one the precuneus parietal lobe during perception patterns, other caudate nucleus basal ganglia generation best next move. Activities at these sites covaried relevant tasks. These results...
People have long speculated whether the evolution of bipedalism in early hominins triggered tool use (by freeing their hands) or necessity making and using tools encouraged shift to upright gait. Either way, it is commonly thought that one led other. In this study, we sought shed new light on origins manual dexterity by mapping neural representations brain fingers toes living people monkeys. Contrary ‘hand-in-glove’ notion outlined above, our results suggest adaptations underlying evolved...
The superior capability of cognitive experts largely depends on automatic, quick information processing, which is often referred to as intuition. Intuition develops following extensive long-term training. There are many models intuition development, but its neural basis not known. Here we trained novices for 15 weeks learn a simple board game and measured their brain activities in early end phases the training while they quickly generated best next-move given pattern. We found that...
A number of modern digital anatomy techniques, based on structural MR brain images, have recently become applicable to the non-human primate brain. Such voxel-based quantitative techniques require a species-specific standardized template. Here we present template for Japanese macaque (Macaca fuscata). The was designed be used as tool spatially normalising brains into standard space. Although this species monkey is widely in neuroscience research, including studies higher cognitive functions,...
Emotional events resulting from a choice influence an individual's subsequent decision making. Although the relationship between emotion and making has been widely discussed, previous studies have mainly investigated outcomes that can easily be mapped to reward punishment, including monetary gain/loss, gustatory stimuli, pain. These regard as modulator of made rationally in absence emotions. In our daily lives, however, we often encounter various emotional affect decisions by themselves,...
Spatial context in vision has profound effects on neural responses and perception. Recent animal studies suggest that the effect of surround a central stimulus can dramatically change its character depending contrast center stimulus, but such drastic not been demonstrated human visual cortex. To examine dependency we conducted an functional magnetic resonance imaging experiment by using low or high region while was sinusoidally modulated between two contrasts. We found blood oxygen...
Throughout human history, economic bubbles have formed and burst. As a bubble grows, microeconomic behavior ceases to be constrained by realistic predictions. This contradicts the basic assumption of economics that agents rational expectations. To examine neural basis during bubbles, we performed functional magnetic resonance imaging while participants traded shares in virtual stock exchange with two non-bubble stocks one stock. The price was largely deflected from fair stocks, but not...
Abstract We have a social preference to reduce inequity in the outcomes between oneself and others. Such varies according performed functional magnetic resonance imaging during an economic game investigate how perceived moral traits of others modulate neural activities that underlie inequity-aversion. The participants unilaterally allocated money three partners (good, neutral, bad). During presentation good neutral partners, anterior region rostral medial frontal cortex (arMFC) showed...
This magnetic resonance imaging study is designed to obtain relevant implications for criminal justice and explores the effective connectivity underlying expertise. Laypersons experts considered sentences remorseful remorseless defendants, respectively, with without mitigation, in hypothetical murder cases. Two groups revealed no differential activation. However, dynamic causal modeling analysis found distinct patterns of associated subjects' expertise mitigating factors. In sentencing...
Abstract Non-invasive human electroencephalography (EEG) coupled with transcranial magnetic stimulation (TMS) is currently used to measure coarse stimulus-response relationships in brain physiology during behavior. However, key modifications, the TMS-EEG technique holds even greater promise for monitoring fine-scale neural signatures of Here, we demonstrate that a novel co-registration can dynamically monitor individual variation perception based solely on EEG resting-state intrinsic...
We investigate the statistical properties of actual periodic orbits in a 4-disk billiard system context pruning. For served value parameter, we numerically obtain approximately 1,000,000 that have no more than 20 collisions. also compute some quantities resultant orbits. In these statistics, observe peak structure survives pruning; is, it possesses “pruning-proof property”.