Abstract: Examples of methods for notification delivery are described herein. In some examples, a method may include determining a flow state of a user based on biometric data from a biometric sensor in an extended reality device. In some examples, the method may include determining a modality for notification delivery based on the flow state. In some examples, the method may include delivering the notification using the modality.

Abstract: A method is provided to control actuation of a click event by a hand-actuated selector moveably mounted to a mount structure, comprising: in a first control state, imparting a maintaining force to the hand-actuated selector; in a second control state, imparting a haptic force to the hand-actuated selector that increases as a function of increasing displacement of the hand-actuated selector from the neutral displacement position; imparting a click event signal to cause an occurrence of the click event at a display system, in a third control state, imparting a haptic force to the hand-actuated selector that decreases in magnitude to a reduced magnitude.

Abstract: An example non-transitory machine-readable medium includes instructions executable by a processor to capture a biometric signal from a biometric sensor at a headset that includes a stereoscopic display, capture a facial motion signal from a facial motion sensor associated with the headset, determine facial movement of a wearer of the headset based on the facial motion signal, apply a weight to the biometric signal based on the facial movement to obtain a weighted biometric signal, and use the weighted biometric signal to determine an emotional state of the wearer.

Abstract: In various examples, a cognitive load of a user may be inferred. Motion sensor data indicative of head movement of the user may be generated with a motion sensor disposed adjacent a head of the user. The motion sensor data may be analyzed to infer a feature of a gait of the user. The user's cognitive load may be inferred based on the feature of the gait.

Abstract: Examples of methods for notification delivery are described herein. In some examples, a method may include determining a flow state of a user based on biometric data from a biometric sensor in an extended reality device. In some examples, the method may include determining a modality for notification delivery based on the flow state. In some examples, the method may include delivering the notification using the modality.

Abstract: An example feedback controller for a computing device is disclosed. The feedback controller includes a sleeve to be disposed about a portion of a user's wrist. In addition, the feedback controller includes a handle to be grasped by the user's hand. Still further, the feedback controller includes a first actuator coupled to the handle and the sleeve, the first actuator to move the handle.

Abstract: In example implementations, an apparatus is provided. The apparatus includes a display, a biometric sensor, and a processor. The display is to play content. The biometric sensor is to collect biometric data of an individual. The processor is communicatively coupled to the display and the biometric sensor. The processor is to calculate a level of cognitive load based on the biometric data and to adjust an amount of noise in the content based on the level of cognitive load of the individual.

Abstract: An example non-transitory computer-readable storage medium comprises instructions that, when executed by a processing resource of a computing device, cause the processing resource to generate haptics metadata using audio-haptics classification based at least in part on spatial audio associated with a digital environment. The instructions further cause the processing resource to encode the spatial audio with the haptics metadata to generate a rendering package.

Abstract: In some examples, an apparatus such as an extended reality device can include a handle, an input mechanism, and a biometric sensor located on the input mechanism, where the biometric sensor is to be in contact with an outer surface of a user of the apparatus to measure a physiological state of the user.

Abstract: In some examples, an apparatus can include a handle having a first surface and a second surface, an inflatable bladder located on the second surface, and a sensor located on the apparatus, where inflation of the inflatable bladder causes the sensor to be in contact with an outer surface of a user of the apparatus.

Abstract: An example non-transitory machine-readable medium includes instructions executable by a processor to capture a biometric signal from a biometric sensor at a headset that includes a stereoscopic display, capture a facial motion signal from a facial motion sensor associated with the headset, determine facial movement of a wearer of the headset based on the facial motion signal, apply a weight to the biometric signal based on the facial movement to obtain a weighted biometric signal, and use the weighted biometric signal to determine an emotional state of the wearer.

Abstract: In example implementations, a head mounted display (HMD) is provided. The HMD includes a first display, a sensor, an outward facing camera, a processor, and a second display. The first display is to display an image towards a user wearing the HMD. The sensor captures a gaze of the user wearing the HMD. The outward facing camera captures images of a portion of an environment within a view of the user. The processor is communicatively coupled to the sensor and the outward facing camera to generate an animation of the gaze of the user and an augmented reality image on the first display based on the images captured by the outward facing camera. The second display is communicatively coupled to the processor and the first display. The second display displays the animation of the gaze of the user away from the user.

Abstract: An example feedback controller for a computing device is disclosed. The feedback controller includes a sleeve to be disposed about a portion of a user's wrist. In addition, the feedback controller includes a handle to be grasped by the user's hand. Still further, the feedback controller includes a first actuator coupled to the handle and the sleeve, the first actuator to move the handle.

Abstract: A somatosensory feedback system may include at least one somatosensory feedback device to, when actuated, invoke a sensation in a user. The somatosensory feedback system may instruct the at least one somatosensory feedback device to actuate to indicate a passage of time.

Abstract: In example implementations, a head mounted display (HMD) is provided. The HMD includes a first display, a sensor, an outward facing camera, a processor, and a second display. The first display is to display an image towards a user wearing the HMD. The sensor captures a gaze of the user wearing the HMD. The outward facing camera captures images of a portion of an environment within a view of the user. The processor is communicatively coupled to the sensor and the outward facing camera to generate an animation of the gaze of the user and an augmented reality image on the first display based on the images captured by the outward facing camera. The second display is communicatively coupled to the processor and the first display. The second display displays the animation of the gaze of the user away from the user.

Abstract: A somatosensory feedback system may include at least one somatosensory feedback device to, when actuated, invoke a sensation in a user. The somatosensory feedback system may instruct the at least one somatosensory feedback device to actuate to indicate a passage of time.