Online harassment of Japanese celebrities and influencers.

Famous people, such as celebrities and influencers, are harassed online on a daily basis. Online harassment mentally disturbs them and negatively affects society. However, limited studies have been conducted on the online harassment victimization of famous people, and its effects remain unclear.

Avatars' Social Rhythms in Online Games Indicate Their Players' Depression.

Data sets on gameplay, called digital biomarkers, contain many characteristics of game players and are associated with mental health problems. In fact, an avatar's behavior during an online game is said to be related to its player's mental health. Based on this information, we estimated the depressive state of players based on their avatar's behavioral logs.

Impact of correcting misinformation on social disruption.

People are obtaining more and more information from social media and other online sources, but the spread of misinformation can lead to social disruption. In particular, social networking services (SNSs) can easily spread information of uncertain authenticity and factuality. Although many studies have proposed methods that addressed how to suppress the spread of misinformation on SNSs, few works have examined the impact on society of diffusing both misinformation and its corrective information.

Three clusters of content-audience associations in expression of racial prejudice while consuming online television news.

It is well investigated that the expression of racial prejudice is often induced by news coverage on the internet, and the exposure to media contributes to the cultivation of long-term prejudice. However, there is a lack of information regarding the immediate effects of news delivered through television or television-like media on the expression of racial prejudice. This study provides a framework for understanding such effects by focusing on content-audience associations using the logs of an "online television" service, which provides television-like content and user experiences.

Differences in victim experiences by gender/sexual minority statuses in Japanese virtual communities.

This study clarified the advantages of virtual communities on non-victim experiences among lesbian, gay, bisexual, transgender, questioning, intersex, and asexual (LGBTQIA) individuals in Japan. A total of 3504 Pigg Party users, including 1390 LGBTQIA individuals, reported their experiences of victimization, perceived emotional support, and concealment of their gender/sexual identity in both physical and virtual communities. Japanese individuals with multiple minority statuses had more victim experiences than those with a single or without minority status.

Two types of social grooming methods depending on the trade-off between the number and strength of social relationships.

Humans use various social bonding methods known as social grooming, e.g. face to face communication, greetings, phone and social networking sites (SNS).

Environmentally Driven Migration in a Social Network Game.

Cooperative behaviors are common in humans, and they are the fundamental basis of our society. Theoretical and experimental studies have modeled environments where the behaviors of humans, or agents, have been restricted to analyze their social behavior. However, it is important that such studies can be generalized to a less restrictive environment in order to understand human society.

Biological observation during the daytime of elderly patients with advanced dementia cared for with and without artificial nutrition by percutaneous endoscopic gastrostomy.

Aim: To clarify the activity of demented patients cared for with and without artificial nutrition in a care facility, sequential biological observation was applied using electroencephalograms (EEG), electromyograms (EMG) and electro-oculograms (EOG).

Methods: Awake and sleep patterns and spontaneous swallowing were measured during the daytime in 13 patients with advanced dementia who could orally intake meals (OR patients), and 13 patients with advanced dementia, who received artificial nutrition by percutaneous endoscopic gastrostomy (PEG patients).

Results: The awake/sleep pattern fluctuated during daytime in OR and PEG patients, but a fully awake state was relatively preserved around meal times in OR patients.