Smokers who scored higher on a test of math ability were more likely than others to say they want to quit smoking, according to new research. The reason: They had a better memory for numbers related to smoking risk, which led to perceiving a greater risk from smoking and then a greater intention to quit. “People who had better math skills remembered more of the scary numbers about smoking risks that we gave them, and that made a difference.
When I see red, it’s the most religious experience. Seeing red just results from photons of a certain frequency hitting the retina of my eye, which cascades electrical and biochemical pulses through my brain, in the same way a PC runs. But nothing happening in my eye or brain actually is the red colour I experience, nor are the photons or pulses. This is seemingly outside this world. Some say my brain is just fooling me, but I don’t accept that as I actually experience the red.
A well-trained athlete sprinting 100 yards performs a highly stereotyped, repetitive motor pattern. Neuroscientists understand that these rhythmic motor programs, such as walking, swimming and running, are produced by neural circuitry that generates repetitive patterns that are similar from cycle to cycle. Over a century ago, spinal cord experiments led to the proposal that a simple neural network can produce such a rhythmic oscillatory firing pattern. These oscillatory networks are now known as central pattern generators.
Anger is a healthy and natural human emotion that can occur during a relationship, often due to frustration and feelings of being overwhelmed. Unfortunately, failure to control your anger can lead to ugly confrontations that can ruin a once healthy relationship. Follow these strategies for healthy anger management: 1. Calm Down Before you attempt to talk to your partner, take a few moments away from the situation to clear your mind.
Tanezumab, a monoclonal antibody that inhibits nerve activity, may provide relief to people with chronic low back pain, new research indicates. Chronic low back pain is one of the leading reasons why people seek medical care and the number one cause of disability worldwide. “This demonstration of efficacy is a major breakthrough in the global search to develop non-opioid treatments for chronic pain. There were also improvements in function linked to the reduction in pain severity,” says John Markman, director of the Translational Pain Research Program in neurosurgery department at the University of Rochester Medical Center (URMC) and lead author of the study.
Biologists from Lawrence Livermore National Laboratory (LLNL) have identified a distinct mechanism that affects the maintenance and expansion of malignant cells: electric signals in the tumor microenvironment. Metastasis accounts for approximately 90 percent of mortality in breast cancer patients. During the last few decades, there has been significant progress in understanding genetic, molecular and signaling mechanisms underpinning cancer cell migration. All cells can generate bioelectric signals through their plasma membrane, and therefore naturally exist in our bodies.
A link between traffic-related air pollution and an increased risk for changes in brain development relevant to neurodevelopmental disorders has been identified by researchers at the University of California, Davis. Their study, based on rodent models, agrees with previous epidemiological evidence showing this association. While air pollution has long been a concern for pulmonary and cardiovascular health, it has only been within the past decade that scientists have turned their attention to its effects on the brain, said UC Davis toxicologist Pamela Lein, senior author of the study.
It’s a classic visual illusion: Two gray dots appear on a background that consists of a gradient from light gray to black. Although the two dots are identical, they appear very different based on where they are placed against the background. Scientists who study the brain have been trying to figure out the mechanism behind this illusion, known as simultaneous brightness contrast, for more than 100 years. An MIT-led study now suggests that this phenomenon relies on brightness estimation that takes place before visual information reaches the brain’s visual cortex, possibly within the retina.