King Abdulaziz University

Mohammed U Alsaggaf

Ubaid M Al-Saggaf

Muhammad Moinuddin

Syed Saad Azhar Ali

Syed Faraz Naqvi

Sulhi Ali Alfakeh

Yasir Hafeez

Rumaisa Abu Hasan

Irraivan Elamvazuthi

Examples include receiving and storing samples of target frequency bands filtered from EEG measurement of a subject's brain waves in an NFB training session. In an example, upon storing a time window of the samples, unsupervised adaptive adjusting an NFB reward threshold is automatic. The adjusting includes, in examples, determining neuromarker values in the time window, which indicate peak values of the target frequency bands over the time window. The adjusting computes the mean value of the neuromarker values and, utilizing same, automatically proceeds to unsupervised computing an adaptive adjusted reward threshold. The unsupervised computing, in examples, includes a multiplication product of a reward threshold adjustment factor, a training protocol value, and the computed mean value of the neuromarker values. Examples proceed to communicating the adaptive adjusted reward threshold to a controller for threshold based feedback reward to the NBF subject.

System and method for unsupervised adaptive threshold neurofeedback treatment

A method and system that includes a wearable device having a plurality of EEG sensors to detect an EEG signal in a window of a predetermined length, a bandpass filter to remove frequency bands of the EEG signal to obtain a combined signal of remaining frequency bands, and a wireless device connection for wireless transmission of information from the wearable device. The information including the EEG signal and the combined signal. A mobile device includes a communication device for receiving the transmitted information, at least one processor for processing a machine learning model. The machine learning model classifies the combined signal to obtain a classification result of mental stress or not mental stress, and a display device displays a mental stress assessment based on the EEG signal and the classification result.

Wearable stress assessment system with EEG sensors

System for mental stress assessment

A device, method, and non-transitory computer readable medium for identification of stress resilience. The method for identification of stress resilience includes stimulating a human subject by at least one of a plurality of stressful events in a virtual reality environment, acquiring multichannel real-time electroencephalograph (EEG) signals by an EEG monitor worn by a human subject, recording the real-time EEG signals received during the stressful event, transmitting the real-time EEG signals to a computing device. The computing device generates a plurality of filtered brain wave frequencies related to the stressful event by filtering the multichannel real-time EEG signals, classifies the brain wave frequencies by frequency level by applying the filtered brain wave frequencies to the deep learning model, applies each frequency level associated with the stressful event to the convolutional neural network, and identifies a level of stress resilience of the human subject associated with the stressful event.

Deep learning model-based identification of stress resilience using electroencephalograph (EEG)

A device, method, and non-transitory computer readable medium for interactive 3D visualization of ultrasound images of a supraspinatus tendon injury. Ultrasound images are acquired of a region in which the supraspinatus tendon injury is suspected. The ultrasound images are preprocessed, and energy of the preprocessed ultrasound images is minimized. A set of supraspinatus tendon images are extracted from low energy preprocessed ultrasound images. A morphological operation is performed on the set of supraspinatus tendon images to generate a smoothed set of supraspinatus tendon images. A binary mask is applied to the smoothed set of supraspinatus tendon images to detect boundary points of the supraspinatus tendon and generate a set of segmented image frames. The set of segmented image frames are arranged based on spatial position of each segmented image frame with respect to the supraspinatus tendon. A 3D representation of the supraspinatus tendon is reconstructed and rendered on a display.

Method for 3D ultrasound reconstruction of supraspinatus (SSP) tendon

Real-time intelligent mental stress assessment system and method using LSTM for wearable devices

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Jeddah, Saudi Arabia

Mohammed U Alsaggaf