A paralysed individual, aged 69, has successfully piloted a virtual drone using a brain-computer interface (BCI) that interprets neural signals. This innovative achievement has enabled the participant to navigate a video-game obstacle course by imagining specific finger movements. The breakthrough device, which bridges brain activity and real-time control, demonstrates potential applications for assisting those with mobility challenges to engage in intricate tasks. These developments mark significant progress in the application of BCIs for enhancing motor functions.

Breakthrough Detailed in Nature Medicine

According to a study published in Nature Medicine, the man, who had been paralysed in all four limbs following a spinal cord injury, controlled the virtual drone using neural signals linked to imagined movements of specific finger groups. The research relied on electrodes implanted in the participant’s left motor cortex, which had been placed during a prior operation in 2016. Algorithms were trained to decode the brain’s signals when he visualised moving his right thumb, different finger pairs, or combinations of them.

The researchers reported that the participant initially practised synchronising imagined movements with a virtual hand displayed on a screen, achieving a high degree of accuracy by hitting up to 76 targets per minute. Subsequently, the signals were connected to the drone’s navigation system, allowing him to steer it through a virtual basketball court, manoeuvring rings with precision.

Expert Insights on Potential Applications

Matthew Willsey, a neurosurgeon at the University of Michigan and a co-author of the study, told Nature Medicine that the participant likened the experience to playing a musical instrument, requiring delicate adjustments to maintain control. Willsey noted that the research seeks to enable control of multiple movements simultaneously, potentially assisting activities such as typing or playing musical instruments.

John Downey, a BCI researcher from the University of Chicago, described the work as an important initial step in understanding hand control mechanisms. He highlighted the potential of this technology as a versatile tool for individuals with limited mobility. Researchers aim to enhance the system to decode signals for all ten fingers.

Two young stars have been captured in a new image taken by the Hubble Space Telescope, located in the Orion Nebula, a well-known region for star formation. The stars, named HOPS 150 and HOPS 153, are situated approximately 1,300 light-years from Earth. The Orion Nebula is considered the closest massive star-forming region to Earth and contains hundreds of newly forming stars. The image provides insight into the ongoing process of star birth, showing the stars in their early stages as they gather material from their surrounding environment.

Protostars Observed in Orion Nebula

As reported by space.com, according to the European Space Agency’s (ESA) statement, the stars were identified through the Herschel Orion Protostar Survey conducted using the Herschel Space Observatory. HOPS 150, which consists of two stars, a forming a binary system, is seen glowing in bright golden red in the image’s upper-right corner. The binary stars are surrounded by a large cloud of gas and dust, which continues to provide material for their growth. The protostars are said to be midway in their developmental process, based on the light they emit in different wavelengths.

Stellar Jet Emission from HOPS 153

The statement also noted that HOPS 153, located on the left side of the image, exhibits a narrow jet of colorful gas extending outward. This jet is a byproduct of the star’s evolution, as it ejects material while feeding from its surrounding disk. The colorful jet, composed of high-speed matter, interacts with the surrounding gas and dust in the nebula, influencing the formation of new stars in the region.

Future Evolution of the Young Stars

ESA officials have stated that HOPS 153 is still deeply embedded in its birth cloud of cold, dense gas. While the protostar itself is not visible, the jet it emits can be clearly observed. As the star continues to develop, further material ejection is expected, which may impact the surrounding nebula and the formation of neighboring stars.

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