Projects

 

Brain-Computer Interfaces

 

Towards Development of Steady-State Somatosensory Evoked Potentials (SSSEPs)-Based Brain-Computer Interfaces
 

Towards Development of Steady-State Somatosensory Evoked Potentials (SSSEPs)-Based Brain-Computer Interfaces

The objective of this research is to develop and evaluate a tactile-based BCI, induced by vibratory stimulation. Preliminary study towards detecting conscious awareness of, and communicate with, behaviorally non-responsive patients. This project involves interdisciplinary collaboration between engineering (ISE and EE), neuroscience (Neurology), assistive technology and medical science. These SSSEP features will be used to develop a hybrid BCI for behaviorally non-responsive patients.

 

Collaborative Brain-Computer Interface for people with severe motor disabilities
 

Collaborative Brain-Computer Interface for People with Severe Motor Disabilities

The objective of this research is to investigate the collaborative behavior of peop le with motor disabilities (i.e., amyotrophic lateral sclerosis, ALS) using a collaborative BCI system that utilizes steady-state visually evoked potentials (SSVEPs). The NC State Brainbot BCI was used as a test bed for the research.

 

A P300-based brain-computer interface (BCI): effects of luminosity contrast, stimulus duration, interface type & screen size
 

A P300-based brain-computer interface (BCI): effects of luminosity contrast, stimulus duration, interface type & screen size

This research focuses on the usability analysis of P300-based BCI applications with four independent variables: luminosity contrast, stimulus duration, interface type, and screen size. The difference in task performance between participants with and without motor disabilities is also analyzed. P300 Speller is used as the test bed in the research. This research intends to provide invaluable empirical data and meaningful insights to the future research of P300-based BCI applications.

 

Rehabilitation

 

Initial Assessment of Hand Orthosis: Implications for Brain-Computer Interface-Driven Motor Rehabilitation
 

Initial Assessment of Hand Orthosis: Implications for Brain-Computer Interface-Driven Motor Rehabilitation

The objective of this research is to address a general lack of understanding on the wearing comfort and usability of the hand orthosis as well as efficacy of brain-computer interface (BCI)-driven orthosis as a potential rehabilitation tool. Findings from this study will also allow us to conduct long-term rehabilitation studies with stroke patients who have severe motor impairments.

 

Functional Electrical Stimulation (FES) based Brain Computer Interfaces (BCIs) for Rehabilitation of Stroke Patients
 

Functional Electrical Stimulation (FES) based Brain Computer Interfaces (BCIs) for Rehabilitation of Stroke Patients

The objective of this research is to validate if paralyzed multiple limbs can be controlled in real time by a Motor Imagery (MI) based Brain Computer Interface (BCI) with Functional Electrical Stimulation (FES), and to improve system accuracy based on subject-specific reference and stimulation time epochs. This research study will be extended to improve fine motor control of the hands.

 

I-SMILE Smart Healthcare: Assessment of Upper Limb Motion Tracking Based on Wearable Inertial Sensors
 

I-SMILE Smart Healthcare: Assessment of Upper Limb Motion Tracking Based on Wearable Inertial Sensors

The Smart Healthcare project is a research initiative to investigate and develop a new system for allowing physical therapists to remotely monitor the rehabilitation progress of their patients. The hardware component of this project includes an array of wearable, wireless sensors for monitoring upper limb range of motion, as well as trunk movement. The software component consists of an application to gather the motion data from the sensor arrays, process the data to recreate the patients’ movements, and then present the clinically relevant information for each patient to a therapist, with special note made for any abnormalities found with the recorded motions.

 

Neuroergonomics

 

The Effects of Individual Difference on Discrete Affective Stimuli Processing: An EEG Study
 

The Effects of Individual Difference on Discrete Affective Stimuli Processing: An EEG Study

The objective of this research is to investigate how people process discrete affective picture stimuli, using electroencephalogram (EEG). Event-related potential (ERP) and coherence of brain areas are analyzed, subject to emotional granularity and discrete emotional categories. This study helps to understand human emotions would give insights beyond traditional knowledge and experiences.

 

Human-Computer Interactions

 

Haptic User Interfaces for the Visually Impaired: Implications for Haptically Enhanced Science Learning Systems
 

Haptic User Interfaces for the Visually Impaired: Implications for Haptically Enhanced Science Learning Systems

The objective of this research is to support visually impaired students’ science learning through sensorial feedback was systematically studied to investigate task performance and user behavior. The results of this study as well as a set of refined design guidelines and principles should provide insights to the future research of haptic user interfaces that can be used when developing haptically enhanced science learning systems for the visually impaired.