Abstract: A biological function measurement and analysis system, a biological function measurement and analysis method, and a recording medium storing program code causing a computer to execute the biological function measurement and analysis method. The biological function measurement and analysis system includes an input acceptance unit configured to accept selection of a biological function to be measured, and a measurement and analysis procedure determining unit configured to access a memory in which measurement and analysis procedure data, indicating a combination of measurement and analysis of reaction of a live subject caused by stimulation on a biological-function-by-biological-function basis, is stored to specify measurement and analysis procedure data corresponding to the selected biological function.

Abstract: A biological information measuring apparatus includes a cover member and a hardware processor. The cover member is provided with sensors for detecting biological signals to cover a position of a biological part of a subject. The hardware processor is configured to estimate a positional relation of the position of the biological part of the subject with respect to the cover member at a first time point. The hardware processor superimposes first point cloud and second point cloud. The first point cloud is acquired by a non-contact mechanism front the subject at the first time point and represents a surface of the biological part of the subject in a coordinate system of the sensors. The second point cloud is created based on a morphological image of the subject captured by a biological structure acquiring apparatus and represents the surface of the biological part of the subject.

Abstract: A biological signal measurement system includes: a providing unit configured to provide a first visual stimulus including a first object visually changing at a predetermined frequency, and a second visual stimulus including a second object; a detection unit configured to detect a biological signal of the subject; a frequency analysis unit configured to perform a frequency analysis on the detected biological signal corresponding to the first visual stimulus, and derive a signal intensity of each frequency component; a determination unit configured to determine a time interval in which the subject has viewed the first visual stimulus, based on a signal intensity of a frequency component corresponding to the frequency; an extraction unit configured to extract the biological signal corresponding to the determined time interval, and corresponding to the second visual stimulus; and an output unit configured to output the extracted biological signal.

Abstract: A brain response measurement system includes a stimulation timing control unit calculating, based on a delay time from a brain response to first stimulation in a first brain area to a brain response to a second stimulation in the first brain area, and a delay time from a brain response to the second stimulation in the second brain area to a brain response to the first stimulation in the second brain area, start and end times of the first stimulation and start and end times of the second stimulation that cause the brain response to the first stimulation in the first brain area and the brain response to the second stimulation in the first brain area not to overlap and cause the brain response to the second stimulation in the second brain area and the brain response to the first stimulation in the second brain area not to overlap.

Abstract: A biological information measurement system includes: a time measurement apparatus configured to transmit time information; a first measurement apparatus configured to measure brain neural activity of a subject, based on a biological signal detected from the subject; a first recording apparatus configured to record first data indicating a temporal change in the brain neural activity measured by the first measurement apparatus, in association with the time information received from the time measurement apparatus; an image capturing apparatus configured to capture an image of the subject; and a second recording apparatus configured to record second data indicating a temporal change in a posture of the subject, the posture identified based on the image captured by the image capturing apparatus, in association with the time information received from the time measurement apparatus.

Abstract: A biological information measurement system includes: a measurement unit configured to measure brain neural activity, based on biological signal detected by a plurality of sensors arranged in a cover member configured to cover a head of a subject; N image capturing units configured to each acquire an image including at least three reference points on the subject and the cover member; and a positional relationship determination unit configure to determine a positional relationship among a plurality of reference points on the subject and the plurality of sensors, based on positional relationship data among the plurality of reference points and the cover member, obtained based on N pieces of image data obtained from the image capturing units. An angle between image capturing directions of two image capturing units among the N image capturing units is larger than zero degree and smaller than 90 degrees.

Abstract: A biological information measurement system includes a dewar, a single imaging device, and a hardware processor. The dewar covers a head of a subject and contains sensors that are arranged for detecting biological signals. The single imaging device acquires an image in which three or more reference points and the dewar are captured, the reference points being set in relation to the subject. The hardware processor is configured to: measure brain neural activity of the subject based on the biological signals detected by the sensors; determine positional relationships between the reference points of the subject and the sensors based on the reference points and positional relationship data of the dewar; and re-determine the positional relationships between the reference point of the subject and the sensors, based on images that are acquired by the single imaging device at different times.

Abstract: An information analysis apparatus includes a feature quantity calculation unit and an output unit. The feature quantity calculation unit is configured to calculate a feature quantity on a biological body of a single subject or a group of a plurality of subjects, from data groups acquired under N acquisition conditions (k) where N is equal to or larger than three. The output unit is configured to output the feature quantity. The feature quantity is represented by Expression (1) below using numbers of acquisitions (nk), average values (<Xk>), unbiased variances (Sk2), and contribution ratios (wk) under the acquisition conditions (k).

Abstract: A measuring device includes a stimulation instructing unit and an estimating unit. The stimulation instructing unit is configured to instruct a stimulating device to generate a plurality of stimulations corresponding to at least three fiducial points of brain anatomy data, the at least three fiducial points having been defined in the brain anatomy data. The estimating unit is configured to estimate, based on sensor output signals output from sensors configured to measure a brain activity signal of a subject who is a target to be measured, parts where brain activities occur due to the plurality of stimulations.

Abstract: A biological information measuring apparatus includes a cover member and a hardware processor. The cover member is provided with sensors for detecting biological signals to cover a position of a biological part of a subject. The hardware processor is configured to estimate a positional relation of the position of the biological part of the subject with respect to the cover member at a first time point. The hardware processor superimposes first point cloud and second point cloud. The first point cloud is acquired by a non-contact mechanism front the subject at the first time point and represents a surface of the biological part of the subject in a coordinate system of the sensors. The second point cloud is created based on a morphological image of the subject captured by a biological structure acquiring apparatus and represents the surface of the biological part of the subject.

Abstract: A brain response measurement system includes a stimulation timing control unit calculating, based on a delay time from a brain response to first stimulation in a first brain area to a brain response to a second stimulation in the first brain area, and a delay time from a brain response to the second stimulation in the second brain area to a brain response to the first stimulation in the second brain area, start and end times of the first stimulation and start and end times of the second stimulation that cause the brain response to the first stimulation in the first brain area and the brain response to the second stimulation in the first brain area not to overlap and cause the brain response to the second stimulation in the second brain area and the brain response to the first stimulation in the second brain area not to overlap.

Abstract: A biological information measurement system includes a dewar, a single imaging device, and a hardware processor. The dewar covers a head of a subject and contains sensors that are arranged for detecting biological signals. The single imaging device acquires an image in which three or more reference points and the dewar are captured, the reference points being set in relation to the subject. The hardware processor is configured to: measure brain neural activity of the subject based on the biological signals detected by the sensors; determine positional relationships between the reference points of the subject and the sensors based on the reference points and positional relationship data of the dewar; and re-determine the positional relationships between the reference point of the subject and the sensors, based on images that are acquired by the single imaging device at different times.

Abstract: According to an embodiment, a machine learning apparatus includes an interlayer accelerator. The interlayer accelerator includes interlayer units that generate, based on (a) an input vector of a first layer included in a neural network that includes three or more layers and (b) a learning weight matrix of the first layer, an input vector of a second layer next to the first layer. Each of the interlayer units includes a coupled oscillator array. The coupled oscillator array includes oscillators that oscillate at frequencies corresponding to differences between elements of the input vector of the first layer and elements of a row vector that is one row of the learning weight matrix, and combines oscillated signals generated by the oscillators to obtain a calculated signal.

Abstract: According to one embodiment, a magnetic head includes a first magnetic layer, a second magnetic layer, an intermediate layer, a magnetic pole, a first terminal, and a second terminal. The second magnetic layer is separated from the first magnetic layer in a first direction. The intermediate layer is provided between the first magnetic layer and the second magnetic layer. A second direction from the first magnetic layer toward the magnetic pole crosses the first direction. The first terminal is electrically connected to the intermediate layer. The second terminal is electrically connected to the second magnetic layer.

Abstract: A biological function measurement and analysis system, a biological function measurement and analysis method, and a recording medium storing program code causing a computer to execute the biological function measurement and analysis method. The biological function measurement and analysis system includes an input acceptance unit configured to accept selection of a biological function to be measured, and a measurement and analysis procedure determining unit configured to access a memory in which measurement and analysis procedure data, indicating a combination of measurement and analysis of reaction of a live subject caused by stimulation on a biological-function-by-biological-function basis, is stored to specify measurement and analysis procedure data corresponding to the selected biological function.

Abstract: According to one embodiment, an oscillator includes first to third conductive bodies, a first stacked unit, and a magnetic unit. The first conductive body includes first, second region, and third regions. The second conductive body includes a portion separated from the third region. The first stacked unit is provided between the third region and the portion. The first stacked unit includes first to fourth magnetic layers, and first to third intermediate layers. At least a portion of the magnetic unit and at least a portion of the first stacked unit overlap each other. In a first state, the first to fourth magnetizations are aligned with a third direction perpendicular to the first direction and the second direction. The second magnetization has a component in a reverse orientation of the first magnetization. The fourth magnetization has a component in a reverse orientation of the third magnetization.

Abstract: According to one embodiment, a magnetic recording and reproducing device includes a magnetic recording medium, a magnetic head, and a controller. The controller implements a first operation and a second operation. The first operation is implemented in a first information recording interval including a first recording interval and a first non-recording interval. The second operation is implemented in a second information recording interval including a second recording interval and a second non-recording interval. The first operation includes in the first recording interval, generating a first signal magnetic field from the magnetic head, and in the first non-recording interval, generating a first non-signal magnetic field from the magnetic head. The second operation includes in the second recording interval, generating a second signal magnetic field from the magnetic head, and in the second non-recording interval, generating a second non-signal magnetic field from the magnetic head.

Abstract: According to one embodiment, a microwave sensor includes a first stacked body and a first controller. The first stacked body includes a first magnetic layer, a second magnetic layer, and a first nonmagnetic layer. The first nonmagnetic layer is provided between the first magnetic layer and the second magnetic layer. The first controller is electrically connected to the first magnetic layer and the second magnetic layer. The first controller is configured to supply a current to the first stacked body and is configured to sense a value corresponding to a first electrical resistance between the first magnetic layer and the second magnetic layer. A second magnetization of the second magnetic layer is aligned with a first direction from the first magnetic layer toward the second magnetic layer. The value corresponding to the first electrical resistance changes according to a microwave.

Abstract: According to one embodiment, a magnetic head includes a first magnetic layer, a second magnetic layer, an intermediate layer, a magnetic pole, a first terminal, and a second terminal. The second magnetic layer is separated from the first magnetic layer in a first direction. The intermediate layer is provided between the first magnetic layer and the second magnetic layer. A second direction from the first magnetic layer toward the magnetic pole crosses the first direction. The first terminal is electrically connected to the intermediate layer. The second terminal is electrically connected to the second magnetic layer.

Abstract: According to an embodiment, a computing apparatus includes spin torque oscillators, an interaction unit, a variable direct-current supply device, and a measuring unit. The interaction unit controls an interaction between the spin torque oscillators. The variable direct-current supply device supplies a current to induce oscillations of the spin torque oscillators. The measuring unit measures AC signals obtained from the spin torque oscillators.