A mutually calibrated magnetic imaging array system is described. The system includes a non-target magnetic source rigidly attached to a magnetometer, and an attached control unit to measure and adjust several parameters of a magnetic imaging array. A non-target magnetic field source is used to generate a well-defined and distinguishable spatial magnetic field distribution. The source is rigidly attached directly to a magnetometer, while the relative positions of the magnetometers are unknown. The magnetic imaging array is used to measure the strength of the non-target source magnetic fields and the information is used to calibrate several parameters of the array, such as, but not limited to, effective magnetometer positions and orientations with respect to each other and cross-talk between the magnetometers. The system, and method described herein eliminates the need for a separate calibration phantom.

Various embodiments relate generally to electrical and electronic hardware, computer software and systems, and wired and wireless network communications to provide an interface between an organism and other computing machine-based entities, and, more specifically, to sensors that facilitate determination of a state of neural activity with which to associate data representing, for example, an intent and/or a command; to implementations of sensors under control to, for example, modify sensing characteristics to interpolate response signals spatially or temporally, or both, to facilitate determination of a state of neural activity; to the formation or implementation of a data model that includes, for example, data arrangements representative of at least neuronal activity to facilitate determination of a state of neural activity; and to mobile human-machine interface to facilitate control based on neuronal activity of an organism.

Systems and methods for identifying and analyzing neuropsychological flow patterns, include creating a knowledge base of neuropsychological flow patterns. The knowledge base is formed by obtaining signals from multiple research groups for particular behavioral processes, localizing sources of activity participating in the particular behavioral processes, identifying sets of patterns of brain activity for the behavioral processes and neuropsychologically analyzing the localized sources and the identified patterns for each of the research groups. The neuropsychological analysis includes identifying all possible pathways for the identified sets of patterns, ranking the possible pathways based on likelihood for the particular behavioral process and reducing the number of ranked possible pathways based on additional constraints. A system for comparison of obtained signals from an individual to the created knowledge base is provided. These obtained signals are then used to further update the existing knowledge base.

One aspect of the present disclosure relates to a system that can identify a focal area of abnormal brain interactions in a subject. Time series data can be received that corresponds to recordings from a plurality of regions in a brain of the subject during a resting period. Based on the time series data, an information inflow associated with each of the plurality of regions can be determined. The focal area of the abnormal brain interactions can be identified as one of the plurality of regions having a maximum information inflow.

A measurement system includes: a mounting member configured to be mounted on a measurement target portion of a living body and including a plurality of holding units configured to hold a plurality of magnetic sensors such that the plurality of magnetic sensors face the measurement target portion; an image capturing unit configured to capture images of markers arranged in arrangement regions of the plurality of holding units of the mounting member mounted on the measurement target portion, in the measurement target portion; a moving mechanism unit configured to move the image capturing unit relative to the measurement target portion on which the mounting member is mounted; and a derivation unit configured to derive three-dimensional position information on the plurality of magnetic sensors held by the plurality of holding units relative to the measurement target portion, based on the captured images of the markers.

A brain mapping system includes a brain signal acquisition device for collecting brain signals corresponding to different locations of the brain, a stimulator for generating a stimulus based upon a pseudorandom sequence, and a processor for segmenting the brain signals into a plurality of epochs and correlating features extracted from the epochs with the pseudorandom sequence to generate correlation functions, wherein a brain map is constructed by the correlation functions.

A biomagnetic measurement apparatus including: a magnetic sensor; a sensor holder having a cylindrical shape and configured to accommodate and hold the magnetic sensor; a sensor fixing part to which the sensor holder is fixed; and a base to which the sensor fixing part is mounted and configured to be mounted to an object of measurement. The sensor holder includes: a pressing part configured to press the magnetic sensor toward the object of measurement; and a plate including a protrusion configured to engage with the sensor fixing part.

A biomagnetic measurement apparatus including: a magnetic sensor; a sensor holder having a cylindrical shape and configured to accommodate and hold the magnetic sensor; a sensor fixing part to which the sensor holder is fixed; and a base to which the sensor fixing part is mounted and configured to be mounted to an object of measurement. The sensor holder includes: a pressing part configured to press the magnetic sensor toward the object of measurement; and a plate including a protrusion configured to engage with the sensor fixing part.

A magnetic measurement apparatus includes a concentrating structure and a magnetic sensor. The concentrating structure includes a band portion and a plurality of protruding portions. The band portion is configured to concentrate a magnetic flux from a subject. The plurality of protruding portions are configured to transmit the concentrated magnetic flux to a magnetic sensor. The magnetic sensor is magnetically connected between two opposing protruding portions.

A magnetic measurement apparatus includes a concentrating structure and a magnetic sensor. The concentrating structure includes a band portion and a plurality of protruding portions. The band portion is configured to concentrate a magnetic flux from a subject. The plurality of protruding portions are configured to transmit the concentrated magnetic flux to a magnetic sensor. The magnetic sensor is magnetically connected between two opposing protruding portions.