Tomohisa Asai
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View article: Enhancement of the left frontoparietal network through real‐time <scp>functional magnetic resonance imaging</scp> functional connectivity–informed neurofeedback and its impact on working memory in schizophrenia: A pilot study
Enhancement of the left frontoparietal network through real‐time <span>functional magnetic resonance imaging</span> functional connectivity–informed neurofeedback and its impact on working memory in schizophrenia: A pilot study Open
Aim Cognitive impairment in schizophrenia shows limited improvement with pharmacotherapy, indicating a need for effective treatment. The frontoparietal network supports working memory, and a biomarker has successfully predicted performance…
View article: Effects of stimulus modality and response type on oddball stimulus discrimination using polarity-considered EEG microstate labeling
Effects of stimulus modality and response type on oddball stimulus discrimination using polarity-considered EEG microstate labeling Open
Objective Brain–computer interfaces (BCIs) require effective feature extraction and dimensionality reduction from multidimensional brain signals. Electroencephalogram (EEG) microstate analysis offers a fast and noise-resistant approach by …
View article: Whole-brain EEG dynamics depending on the stimulus modality and task requirements in oddball tasks
Whole-brain EEG dynamics depending on the stimulus modality and task requirements in oddball tasks Open
Electroencephalography (EEG) microstates constitute temporal map configurations that reflect the whole brain electrical state. The dynamics of EEG microstates may serve as an effective discretization method for capturing spatiotemporally c…
View article: Topographical polarity reveals continuous EEG microstate transitions and electric field direction in healthy aging
Topographical polarity reveals continuous EEG microstate transitions and electric field direction in healthy aging Open
EEG microstate sequences, representing whole-brain spatial potential distribution patterns of the EEG, offer valuable insights for capturing spatiotemporally continuous and fluctuating neural dynamics with high temporal resolution through …
View article: Electrophysiological processes towards the appearance of voluntary movements
Electrophysiological processes towards the appearance of voluntary movements Open
View article: Spatio-temporal “global” neurodynamics of the human brain in continuous and discrete picture: Simple statistics meet on-manifold microstates as multi-level cortical attractors
Spatio-temporal “global” neurodynamics of the human brain in continuous and discrete picture: Simple statistics meet on-manifold microstates as multi-level cortical attractors Open
The neural manifold in state space represents the mass neural dynamics of a biological system. A challenging modern approach treats the brain as a whole in terms of the interaction between the agent and the world. Therefore, we need to dev…
View article: EEG microstate dynamics during action recognition memory task
EEG microstate dynamics during action recognition memory task Open
View article: Event-related microstate dynamics represents working memory performance
Event-related microstate dynamics represents working memory performance Open
View article: I Hear My Voice; Therefore I Spoke: The Sense of Agency Over Speech Is Enhanced by Hearing One’s Own Voice
I Hear My Voice; Therefore I Spoke: The Sense of Agency Over Speech Is Enhanced by Hearing One’s Own Voice Open
The subjective experience of causing an action is known as the sense of agency. Dysfunctional sense of agency over speech has been suggested as a cause of auditory hallucinations. However, agency over speech has not been extensively charac…
View article: Biased self-other attribution changes feedback control: link between the sense of agency and sensorimotor control
Biased self-other attribution changes feedback control: link between the sense of agency and sensorimotor control Open
Agents must correctly attribute the source of sensory inputs to the self or other for successful interaction with the environment. Many previous research works have revealed that self-other attribution depends on the discrepancy between se…
View article: Real-Time Detection and Feedback of Canonical Electroencephalogram Microstates: Validating a Neurofeedback System as a Function of Delay
Real-Time Detection and Feedback of Canonical Electroencephalogram Microstates: Validating a Neurofeedback System as a Function of Delay Open
Recent neurotechnology has developed various methods for neurofeedback (NF), in which participants observe their own neural activity to be regulated in an ideal direction. EEG-microstates (EEGms) are spatially featured states that can be r…
View article: Effects of Response Modes to Oddball Stimuli on EEG-microstates
Effects of Response Modes to Oddball Stimuli on EEG-microstates Open
View article: Tracking Action in XR Mark Test Reveals Developing Body Representation Among Toddlers
Tracking Action in XR Mark Test Reveals Developing Body Representation Among Toddlers Open
Despite its popularity as an index of self-recognition, the mark test has not been used for assessing representations of the bodily self. This study combines the mark test and cross-reality task, to demonstrate novel aspects of children’s …
View article: My voice therefore I spoke: sense of agency over speech enhanced in hearing self-voice
My voice therefore I spoke: sense of agency over speech enhanced in hearing self-voice Open
The subjective experience of causing an action is known as the sense of agency. Dysfunction in the sense of agency has been suggested as a cause of auditory hallucinations (AHs), an important diagnostic criterion for schizophrenia. However…
View article: Sense of Agency Beyond Sensorimotor Process: Decoding Self-Other Action Attribution in the Human Brain
Sense of Agency Beyond Sensorimotor Process: Decoding Self-Other Action Attribution in the Human Brain Open
The sense of agency is defined as the subjective experience that “I” am the one who is causing the action. Theoretical studies postulate that this subjective experience is developed through multistep processes extending from the sensorimot…
View article: Elderly brain activity seen from EEG microstates and Functional Connectivity
Elderly brain activity seen from EEG microstates and Functional Connectivity Open
View article: Corrigendum: Touching! An Augmented Reality System for Unveiling Face Topography in Very Young Children
Corrigendum: Touching! An Augmented Reality System for Unveiling Face Topography in Very Young Children Open
[This corrects the article DOI: 10.3389/fnhum.2019.00189.].
View article: Touching! An Augmented Reality System for Unveiling Face Topography in Very Young Children
Touching! An Augmented Reality System for Unveiling Face Topography in Very Young Children Open
Developmental body topography, particularly of the face, is a fundamental research topic in the current decade. However, empirical investigation of this topic for very young children faces a number of difficulties related to the task requi…
View article: Sine Qua Non of Self: The Triple Prerequisites in Sensory Attenuation
Sine Qua Non of Self: The Triple Prerequisites in Sensory Attenuation Open
Many philosophers, theoreticians, and empiricists have argued that the self can be decomposed into some sub-selves (“me”s). On the other hand, we may think that the self is total (“I”) and cannot be further unraveled. Previous studies have…
View article: Mind-body-brain problem:
Mind-body-brain problem: Open
This paper reviews past research on bodily consciousness and its neural representations, as well as current research on the body, self, and brain. In the early 20th century bodily consciousness was first conceptualized as body schema and b…
View article: Self-agency built with sensorimotor processing: Decoding self-other action attribution in the human brain
Self-agency built with sensorimotor processing: Decoding self-other action attribution in the human brain Open
A sense of agency can be defined as a subjective experience that I am the one who is causing or generating an action. Several brain regions have been proposed as neural substrates of the subjective experience; however, how the information …
View article: Investigation of rest and meditation state by functional brain networks
Investigation of rest and meditation state by functional brain networks Open
View article: Measuring the sense of self in brain-damaged patients
Measuring the sense of self in brain-damaged patients Open
Recently, researchers have focused on the embodied sense of self (ESS), which consists of the minimal and narrative selves. Although a study demonstrated that the ESS is related to brain dysfunction empirically, the subjective aspects of t…
View article: Audio-tactile cues from an object’s fall change estimates of one’s body height
Audio-tactile cues from an object’s fall change estimates of one’s body height Open
When we drop an object from our hands, we use internal models of both our body height and object-motion to predict when it will hit the floor. What happens if the sensory feedback finally received from the impact conflicts with this predic…
View article: Voluntarily controlled but not merely observed visual feedback affects postural sway
Voluntarily controlled but not merely observed visual feedback affects postural sway Open
Online stabilization of human standing posture utilizes multisensory afferences (e.g., vision). Whereas visual feedback of spontaneous postural sway can stabilize postural control especially when observers concentrate on their body and int…
View article: Peer Review #1 of "Voluntarily controlled but not merely observed visual feedback affects postural sway (v0.1)"
Peer Review #1 of "Voluntarily controlled but not merely observed visual feedback affects postural sway (v0.1)" Open
Online stabilization of human standing posture utilizes multisensory afferences (e.g., vision).Whereas visual feedback of spontaneous postural sway can stabilize postural control especially when observers concentrate on their body and inte…
View article: Peer Review #1 of "Voluntarily controlled but not merely observed visual feedback affects postural sway (v0.2)"
Peer Review #1 of "Voluntarily controlled but not merely observed visual feedback affects postural sway (v0.2)" Open
Online stabilization of human standing posture utilizes multisensory afferences (e.g., vision).Whereas visual feedback of spontaneous postural sway can stabilize postural control especially when observers concentrate on their body and inte…
View article: Peer Review #2 of "Voluntarily controlled but not merely observed visual feedback affects postural sway (v0.1)"
Peer Review #2 of "Voluntarily controlled but not merely observed visual feedback affects postural sway (v0.1)" Open
Online stabilization of human standing posture utilizes multisensory afferences (e.g., vision).Whereas visual feedback of spontaneous postural sway can stabilize postural control especially when observers concentrate on their body and inte…
View article: Agency over Phantom Limb Enhanced by Short-Term Mirror Therapy
Agency over Phantom Limb Enhanced by Short-Term Mirror Therapy Open
Most amputees experience phantom limb, whereby they feel that the amputated limb is still present. In some cases, these experiences include pain that can be alleviated by "mirror therapy." Mirror therapy consists of superimposing a mirrore…
View article: Subjectivity of the Anomalous Sense of Self Is Represented in Gray Matter Volume in the Brain
Subjectivity of the Anomalous Sense of Self Is Represented in Gray Matter Volume in the Brain Open
The self includes complicated and heterogeneous functions. Researchers have divided the self into three distinct functions called "agency," "ownership," and "narrative self". These correspond to psychiatric symptoms, behavioral characteris…