Search

Brain Computer Interface BCI is a real-time communication system that connects the brain and external devices. The BCI system can directly convert the information sent by the brain into commands that can drive external devices and replace human limbs or language organs to achieve hu-man communication with the outside world and the external environment Control. In other words, the BCI system can replace the normal peripheral nerve and muscle tissue to achieve communication between the human and the computer or between the human and the external environment. The objective of this paper is to assist the network security for the BCI applications to identify brain activities in a secure real-time mode. To achieve this, we proposed the design of a Radio Frequency Identification RFID-based system having semi− active RFID tags placed outside the brain on the scalp transmit the collected brain activities wirelessly to a devise SC (Scanner Controller) consist of mini-reader and timer integrated together for every patient. Additionally, the paper implemented a novel system prototype interface called BCI Identification System (BCIIS) to assist the patient in the identification process. Given the benefits of RFID, we believed that if the idea is adopted and implemented by industry, it could enhance and provide secure BCI applications.

With the widespread of Internet of things, varied innovative tools are required to control the nearby smart devices. In this contest, brain-computer interface (BCI) technology can empower individuals to directly control varied electronic devices such as those used in smart home/office and associative robots via their thoughts. This process requires efficient transmission of electro-corticographical (ECoG) signals from implanted electrodes inside the brain to an external receiver located outside on the scalp. However, the realization of this vision is still challenging task due to the limited reliability of adopted wireless BCI communication systems. In particular, the generated artifacts due to in-phase/quadrature (I/Q) imbalance of utilized down converter and time interleaved analog-to-digital converters (ADCs) may lead to significant interference to desired signal which affects the detection performance. In this paper, an efficient low complexity balance technique is proposed for BCI communications to mitigate the interference using the adaptive least mean square (LMS) algorithm. Performance results of conducted experiments on a near-realistic phantom human brain model are shown to validate the designed balanced BCI (BBCI) scheme compared with the existing BCI approach. Keywords: BCI communications, IoT, I/Q down converter, LMS algorithm, Time-interleaved ADCs

The gravity of the impact of renal failure on human health is well known and as there is no specific pharmacotherapy for renal failure, the current study was undertaken to evaluate the effect of root extract of Azima tetracantha, an ancient medicinal plant used in Siddha and Ayurvedhic systems of medicine. The experiment was done in glycerol-induced acute renal failure in Wistar albino rats. Thirty rats were divided into five groups. Group 1 was given normal saline (10 ml/kg) per oral, group 2 with single dose of hypertonic glycerol (8 ml/kg) by intramuscular injection into the hind limbs, group 3 with glycerol and ethanolic extract of A. tetracantha root (ATR) 250 mg/kg, group 4, glycerol and ATR 500 mg/kg and group 5, 500 mg/kg ATR. Extract was given orally 60 min prior to glycerol injection. 24 h urine output, serum creatinine, blood urea nitrogen, total proteins and albumin were measured for all the groups. Kidneys were examined for histopathological changes. The antioxidant activity of the extract was tested in vitro and in vivo. Rats treated with ATR showed significant improvement in biochemical parameters and histopathological changes compared to glycerol treated group. The protective effect was highly significant at 500 mg/kg. Both in vitro and in vivo assays showed significant antioxidant activity. The in vitro activity was comparable to vitamin-C. The ethanolic extract of ATR has nephroprotective effect in glycerol-induced acute renal failure and the mechanism of action could be the antioxidant effect.