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Takashi Nakao

2 papers in the library · 145 citations · publishing 2017-2018

Papers

The temporal signature of self: Temporal measures of resting‐state EEG predict self‐consciousness

Human Brain Mapping October 4, 2018 Annemarie Wolff, Daniel A. di Giovanni, Javier Gómez‐Pilar et al. 135 citations

Private self-consciousness—the tendency to focus on one's inner thoughts and feelings—is linked to specific temporal patterns in the brain's resting state activity. In an EEG study, higher scores on the Private dimension of the Self-Consciousness Scale correlated with three measures of resting state activity: a steeper power-law exponent (PLE), a longer auto-correlation window (ACW), and a stronger modulation index (MI). These temporal features reflect how self-related information is temporally nested, continuous, and integrated in spontaneous brain activity. Source localization further linked Private self-consciousness to activity in cortical midline structures, including the perigenual anterior cingulate cortex and posterior cingulate cortex. A machine learning algorithm could accurately classify individuals as having high or low Private self-consciousness based on these spatiotemporal measures.

DOI: 10.1002/hbm.24412 Default mode network Resting State FMRI Consciousness Electroencephalography +4

Subjectivity of the Anomalous Sense of Self Is Represented in Gray Matter Volume in the Brain.

Frontiers in human neuroscience January 1, 2017 Noriaki Kanayama, Tomohisa Asai, Takashi Nakao et al. 10 citations

In 96 healthy adults, lower gray matter volume in the insular cortex was linked to greater reported malfunction in the sense of ownership over one's body, as measured by the Embodied Sense of Self Scale. No such relationship was found for the sense of agency or narrative self. This suggests that the feeling of ownership may rely on distinct brain structures, and the scale could help screen for such neural correlates.

DOI: 10.3389/fnhum.2017.00232 Full text Agency Minimal self Narrative self Ownership +1