Frontiers in Psychology
April 10, 2026
Naoyuki Osaka, Takehiro Minamoto, Ken Yaoi et al.
Consciousness in Zen meditation has garnered considerable interest in psychology and neuroscience, particularly in relation to its association with enhanced self-awareness. Zen meditation fosters social harmony by addressing mental and social conflicts, linking individuals to various societal aspects through the practice. This meditation, rooted in Buddhism, aims to perceive thoughts without...
Frontiers in Psychology
May 19, 2023
Hideya Koshino, Mariko Osaka, Tetsuya Shimokawa et al.
Recent research has shown that the Default Mode Network (DMN) typically exhibits increased activation during processing of social and personal information but shows deactivation during working memory (WM) tasks. Previously, we reported the Frontal Parietal Network (FPN) and DMN showed coactivation during task preparation whereas the DMN exhibited deactivation during task execution in working...
Transactions of the Japan Academy
2023
Naoyuki Osaka
Meditation in Zen has received much attention in the scientific exploration of consciousness from metacognition and the social brain. Zen meditation provides effective clues to self-knowledge by providing awareness of “present self-being”. Our brains are thought to operate in dynamic equilibrium every day with two broad networks: the working memory network (WMN), which is oriented toward...
Journal of Cognitive Neuroscience
August 23, 2011
Hiroyuki Tsubomi, Takashi Ikeda, Takashi Hanakawa et al.
Recent neuroimaging evidence indicates that visual consciousness of objects is reflected by the activation in the lateral occipital cortex as well as in the frontal and parietal cortex. However, most previous studies used behavioral paradigms in which attention raised or enhanced visual consciousness (visibility or recognition performance). This co-occurrence made it difficult to reveal whether...
Shinrigaku Kenkyu
February 2007
Naoyuki Osaka
Biological studies of human consciousness based on recent neuroimaging experiments, i.e., functional magnetic resonance imaging (fMRI) and positron emission tomography (PET), were reviewed from the viewpoint of different functions of consciousness. A biological hierarchy of consciousness structured in three levels, i.e., arousal, awareness and self-consciousness, was reviewed in connection with...