A neural-interface probe is provided. The probe may comprise a chip, a wire bundle substrate, and an encapsulant material. The chip may comprise a plurality of bond pads. The wire bundle substrate may comprise a plurality of wires extending through the substrate. The plurality of wires may comprise: (1) a proximal portion connected to the plurality of bond pads to thereby couple the chip to the substrate, and (2) a flexible distal portion configured to interface with neural matter. The encapsulant material may be disposed at least between the chip and the wire bundle substrate.

A disposable self-powered biomedical sensor comprises a printed wet electrode on a substrate sheet. The wet electrode is provided with an electrolyte element to enhance the electrical contact with a surface to be measured. Moreover, a printed battery encapsulated in a hermetically sealed compartment is provided on the substrate sheet. The disposable self-powered sensor can be stored within an enclosure or a package which provides a proper atmosphere to prevent the drying of the electrolyte and prolong the shelf life of the sensors.

A headphone (3, 4) comprises a body (5) forming a chamber (26) for enclosing an ear of a user of the headphone (3, 4). The body (5)has an acoustic seal (7) of a flexible material surrounding the chamber (26), and the body (5) has a cushion (8) extending around the acoustic seal (7) and separate from the acoustic seal (7). The cushion (8) has a first side face (38) for engaging with the head of the user.

An active electrode has an electrode for sensing an electric potential and generating an input signal, and a shield placed near the electrode but being electric insulated from the electrode. An integrated amplifier (10) has an input connected to the at least one electrode for receiving the input signal, and providing a buffered path outputting a buffered output signal. The shield being connected to the output of the integrated amplifier to actively drive the electrical potential of the shield, thereby providing an active shielding of the electrode. The buffered path includes a first mixer (11) in front of the integrated amplifier for frequency shifting the input signal from a basic frequency range to a higher frequency range, and a second mixer (12) on the output of the integrated amplifier for frequency shifting the amplified signal from the higher frequency range back to the basic frequency range. The active electrode may be used for recording EEG signals.

Disclosed is a biosignal acquisition device for the acquisition, in particular the concurrent or simultaneous acquisition, of optical and electrical biosignals. The optical and electrical biosignals are both received by an analog front end device for biosignals, with an opto-electric converter for converting the optical biosignals into electrical signals. Also disclosed are a system of a plurality of biosignal acquisition devices and a biosignal acquisition method.

An electrode carrier system includes one or more electrode assemblies having an electrode body. One or more tubular members extend from the electrode body and define a lumen terminating in a distal opening. The electrode assemblies carry a reservoir containing a conductive fluid or gel. The reservoir is in fluid communication with the lumens in the tubular members, and the electrode assemblies are typically supported on a backing which may optionally be configured as a headband. Systems are for tracking patient movement may be used in combination with the electrode carrier system.

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.

Non-invasive “drawable”, or “paintable”, electrode for electrical stimulation or biological signal sensing comprising a pervious and electrically conductive layer (1), at least one electrically insulating element (2) for maintaining the electrically conductive layer (1) separated from the skin (11), and a conductive material (3) that is deposed using a delivery system (4) on desired areas (5) of the electrically conductive layer (1). The conductive material (3) can penetrate the electrically conductive layer (1) and any other part of the electrode underlying the desired areas (5), thus reaching the skin. The conductive material (3) creates an electrical connection between the desired areas (5) of the electrically conductive layer (1) and the skin. Therefore, the shape of the desired areas (5) electrically connected with the skin, can be customized by the user deposing (or “drawing”) the conductive material (3). Thus, the conductive material (3) enables the fabrication of electrodes with custom-shaped electrically conductive areas in desired positions.

A method for processing EEG signals includes reading the EEG signals from two frontal electrodes of an electroencephalograph (301); converting the EEG signals to a frequency domain (305); determining values of a BIS/BAS response on the basis of an asymmetry between the EEG signals (208). The method includes calculating the asymmetry between the EEG signals in the frequency domain in a frequency range from 26 to 29 Hz.

The present application provides a left and right brain recognition method and device, and relates to the field of wearable devices. The method comprises: in response to that a user listens to an audio content meeting a predetermined condition, acquiring first brain electrical information of a first hemisphere of the user; and recognizing that the first hemisphere is a left brain or a right brain according to the first brain electrical information and reference information. The method and the device provide a left and right brain recognition method, facilitate a device that the user wears to perform automatic setting according to a recognition result, and enhance user experience.