Abstract: Systems, devices, and methods for interfacing with biological tissue are described herein. An example electrode patch as described herein includes a flexible substrate and an electrode array arranged on the flexible substrate. The electrode array includes a plurality of electrodes, where each of the plurality of electrodes is formed of a hydrogel. Additionally, each of the plurality of electrodes defines a raised geometry. Additionally, an example system includes the electrode patch, which is configured to interface with a subject's skin, and an electronics module operably coupled to the electrode array.

Abstract: Systems, devices, and methods for interfacing with biological tissue are described herein. An example electrode patch as described herein includes a flexible substrate and an electrode array arranged on the flexible substrate. The electrode array includes a plurality of electrodes, where each of the plurality of electrodes is formed of a hydrogel. Additionally, each of the plurality of electrodes defines a raised geometry. Additionally, an example system includes the electrode patch, which is configured to interface with a subject's skin, and an electronics module operably coupled to the electrode array.

Abstract: A system for identifying mental stress in a user is provided herein. A first sensor has at least one electrode configured to contact the user's skin to measure heart-based electrical signals of the user. A second sensor has at least one light emitter and at least one light sensor. A third sensor has at least one force sensor and can be configured to measure movement signals of the user's body reflecting cardio-mechanical activity of the user. The heart-based electrical signals, PPG signals, and movement signals in real time are received by a processor via at least one electrical input of the system. A set of mental stress signatures are continuously determined. The mental stress signatures are provided to an inference model to determine a probability of an acute mental stress state of the user. An output can indicate whether the user is presently in an acute mental stress state.

Abstract: A system for configuring an interactive digital representation of an entity. Storing a plurality of interaction milestones in association with at least one interaction metric and a corresponding metric threshold. Each interaction metric is associated with a configuration corresponding to the interaction metric. Receiving a current interactive digital representation of an entity and interaction statistics for the current interactive digital representation and determining, for at least one interaction milestone, an interaction metric value for an interaction metric associated with said interaction milestone based the interaction statistics. Determining a candidate interaction metric of the interactive digital representation for reconfiguring. The candidate interaction metric is used to determine a configuration for the interactive digital representation using the configuration stored in the database for the candidate interaction metric.

Abstract: Systems, devices, and methods for interfacing with biological tissue are described herein. An example electrode patch as described herein includes a flexible substrate and an electrode array arranged on the flexible substrate. The electrode array includes a plurality of electrodes, where each of the plurality of electrodes is formed of a hydrogel. Additionally, each of the plurality of electrodes defines a raised geometry. Additionally, an example system includes the electrode patch, which is configured to interface with a subject's skin, and an electronics module operably coupled to the electrode array.

Abstract: Systems, devices, and methods for interfacing with biological tissue are described herein. An example electrode patch as described herein includes a flexible substrate and an electrode array arranged on the flexible substrate. The electrode array includes a plurality of electrodes, where each of the plurality of electrodes is formed of a hydrogel. Additionally, each of the plurality of electrodes defines a raised geometry. Additionally, an example system includes the electrode patch, which is configured to interface with a subject's skin, and an electronics module operably coupled to the electrode array.

Abstract: Systems, devices, and methods for interfacing with biological tissue are described herein. An example electrode patch as described herein includes a flexible substrate and an electrode array arranged on the flexible substrate. The electrode array includes a plurality of electrodes, where each of the plurality of electrodes is formed of a hydrogel. Additionally, each of the plurality of electrodes defines a raised geometry. Additionally, an example system includes the electrode patch, which is configured to interface with a subject's skin, and an electronics module operably coupled to the electrode array.