Basic Research for Development of Non-contact Stress Measurement Method

A subject experiment was conducted with the aim of developing a method for measuring stress using speech as non-contact information among human physiological responses. Compared to contact-type physiological reaction measurement methods such as salivary amylase activity, non-contact-type stress measurement methods can measure stress state in a short time without interfering with work because the measurement stress on the subject is small. Since the pitch and level of speech may be different between normal and stressed states depending on the behavior of the vocal cords, this study aims to develop a non-contact stress measurement method using speech. As a result of the subject experiment, regular changes were confirmed between the salivary amylase activity value, which is the contact physiological index of the subject before and after the task, and the formant value, F2-F1, which is the voice index and is the non-contact physiological index, with the exception of a few subjects

Green Mental Healthcare Effect by Installing Plants in Office Space Part 1: Outline and Results of Psychological Response from the First Demonstration Experiment

The objective of this study is to examine the effect of indoor plants on mental stress and productivity, and to demonstrate the mental healthcare for office workers. In order to clarify the effect of indoor plants, we conducted a demonstration experiment in an office. This paper describes the outline and a part of the results of the demonstration experiment. Survey items are roughly divided into four categories, i.e. physical environment, physiological response, psychological response and productivity. The results of physical environment, Jikaku-sho shirabe and fatigue are shown.In conclusion, some kinds of plants are found to have some mental healthcare effects significantly

Correlation between general social brain network and real-world social network size in individuals with schizophrenia and social anhedonia

　　社会行为的复杂性要求大脑快速有效地整合多种社会加工过程。脑区之间的协调作用形成有效的社会脑网络在支持社会行为起到重要作用。而已有关于社会脑的研究集中于特定的社会加工过程，未能考察支持社会行为的一般性社会脑网络

The classification of schizophrenia based on brain structural features:A machine learning approach

将机器学习应用于精神疾患的临床和基础研究是近年来的趋势。研究者将机器学习应用于精神分裂症患者及高危人群的T1加权像和弥散张量成像的脑影像数据中,为了解疾病的生理病理学机制提供帮助。回顾以往研究发现额叶及颞叶的脑结构特征具有较高的区分能力,行为数据和脑影像数据结合的分类效果优于单模态数据。现阶段研究存在样本量不足和泛化能力欠缺的局限,未来研究应注意扩大样本量、制定标准化的分类方法,从而进一步探究机器学习在精神疾患中的作用

Basic Research for Development of Non-contact Stress Measurement Method

A subject experiment was conducted with the aim of developing a method for measuring stress using speech as non-contact information among human physiological responses. Compared to contact-type physiological reaction measurement methods such as salivary amylase activity, non-contact-type stress measurement methods can measure stress state in a short time without interfering with work because the measurement stress on the subject is small. Since the pitch and level of speech may be different between normal and stressed states depending on the behavior of the vocal cords, this study aims to develop a non-contact stress measurement method using speech. As a result of the subject experiment, regular changes were confirmed between the salivary amylase activity value, which is the contact physiological index of the subject before and after the task, and the formant value, F2-F1, which is the voice index and is the non-contact physiological index, with the exception of a few subjects

Green Mental Healthcare Effects in Office Spaces Focusing on Color and Fragrance of Plants

It is urgent problem to improve the environment in office spaces. The GMH effects (that is the abbreviation for Green Mental Healthcare effects) based on the biophilic design are suggested as a solution for this problem. This research aims to verify the GMH effects on the basis of colors and fragrances of the plants that would effect on the physiological/psychological responses of the subjects. As the result of this research, there were few correlations between these responses and features of plants. And some effects those are caused by subject attributes such as age and gender must be excluded to improve the analysis method

Green Mental Healthcare Effect by Installing Plants in Office Space Part 2: Outline and Analysis Focusing on the Subject Attribute

The objective of this study is to examine the effect of indoor plants on physiological/psychological stress and productivity， and to demonstrate the mental healthcare for office workers. In order to clarify the mental healthcare effects of indoor plants on office workers， we conducted a demonstration experiment in an office. This paper describes the outline and the results of the second demonstration experiment. It was found that certain kinds of plants have mental healthcare effects significantly