Recognition of the game situation in baseball.

This study examines baseball players' recognition framework of out, ball, and strike counts in baseball games and clarifies the differences in psychological perspectives between batters and pitchers. The participants were 396 players (294 batters and 102 pitchers) belonging to baseball clubs at eight universities. Participants answered 288 questions for all game situations by combining out, ball, and strike counts and runner position.

Cross-sectional study on university students' mental health during the COVID-19 pandemic: Exploring the influence of adverse and positive childhood experiences.

Aim: This study examined the psychological impact of the COVID-19 pandemic on university students, focusing on how adverse childhood experiences (ACEs) and positive childhood experiences (PCEs) influence mental health.

Methods: A web-based survey was administered to 3000 university students from October 26 to 31, 2022, following the peak of the COVID-19 pandemic. Mental health assessments included the Japanese version of the Kessler Psychological Distress 6-Item Scale (K6) for depressive/anxiety symptoms, the Impact of Event Scale-Revised (IES-R-J) for distress, fear of COVID-19, and a three-item loneliness scale.

A cross-sectional study of the psychological impact of the COVID-19 pandemic on undergraduate and graduate students in Japan.

Background: Due to the COVID-19 pandemic, a state of emergency was declared in Japan and university classes were suspended, causing concern about the deterioration of the mental health of isolated students. This study aimed to understand students' mental health status during the COVID-19 pandemic and suggest measures to prevent depressive anxiety among them.

Method: Undergraduate and graduate students at one national and two private universities in the Kansai region were surveyed.