Takuto Hayashi

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The objective of this research is to assess the relationship between brain functional responses to emotional stimuli and the mental stabilities of people using functional magnetic resonance imaging (fMRI). We evaluated personality features and physical symptoms of the subjects using psychological tests and categorized the subjects into two groups: the(More)
The structure of the neural circuitry of the cerebellum, which functions in some types of motor learning and coordination, is generally conserved among vertebrates. However, some cerebellar features are species specific. It is not clear which genes are involved in forming these conserved and species-specific structures and functions. This study uses(More)
The current study evaluated the effect of different anxiety states on information processing as measured by an electroencephalography (EEG) using emotional stimuli on a smartphone. Twenty-three healthy subjects were assessed for their anxiety states using The State Trait Anxiety Inventory (STAI) and divided into two groups: low anxiety (I, II) or high(More)
The aim of this study is to investigate whether stress states affect brain responses in the regions related to emotional and cognitive processing. The brain activities of thirty-three healthy adults divided into stress and non-stress groups according to their stress responses were assessed during emotional audio-visual stimuli using functional magnetic(More)
The aim of this research is to evaluate the relationship between hippocampal responses to emotional stimuli and the mental stabilities of people using functional magnetic resonance imaging (fMRI). We assessed personality features and physical symptoms of the subjects using psychological tests and categorized the subjects into two groups: the mentally stable(More)
The present study investigates phase-locked and non-phase-locked brain responses in theta and alpha frequency bands. A 122-ch whole-head magnetoencephalogram (MEG) was recorded continuously during emotional audio-visual stimuli. The results showed that emotional stimuli induced increased theta band phase-locked activity at 200-400 ms and non-phase-locked(More)
The aim of this research is to evaluate the relationship between the response in cingulate cortex to emotional stimuli and the personal stabilities of people using functional magnetic resonance imaging (fMRI). We assessed personality features and physical symptoms of the subjects using psychological tests and categorized the subjects into two groups: the(More)
The objective of this research is to quantify the relationship between the reaction of the brain function under emotional stimuli and the degree of the personality stability. And the other purpose is to investigate whether parents' nurturing attitudes and the parents' personality features are relevant to their child's personality stability or not. We(More)
To investigate the performance of propagation speed analysis of EEG under the emotional stimuli using smartphone. Twenty-three healthy subjects were assessed for their anxiety states using CMI and divided to two groups: low CMI score (I) or high CMI score (II, III and IV) group. EEG was measured under emotionally stimuli (relaxed and pleasant, unpleasant(More)